MCQs On Class 39:
Real-World Project - Part 1 (Only Concept)
Here are 100 multiple-choice questions (MCQs) based on the concepts discussed above related to building a Real-World PHP Project for an Online Store:
User
Registration and Login
1. What is
the purpose of hashing passwords in PHP?
o
a) To make passwords more readable
o
b) To protect passwords from being stored in plain
text
o
c) To store passwords in the database without
encryption
o
d) None of the above
Answer: b
2. Which PHP
function is used to hash a password?
o
a) password_hash()
o
b) md5()
o
c) hash()
o
d) encrypt()
Answer: a
3. What does
the password_verify() function
do in PHP?
o
a) It encrypts the password
o
b) It checks if the given password matches the
hashed password
o
c) It generates a new password
o
d) It resets the password
Answer: b
4. What is the
role of the session_start() function in PHP?
o
a) It starts a new session or resumes the current
session
o
b) It initializes a new database connection
o
c) It loads the user profile
o
d) It creates a new file in the server
Answer: a
5. Which
session variable is used to store a logged-in user’s ID?
o
a) $_SESSION['user_id']
o
b) $_SESSION['user_email']
o
c) $_SESSION['user_data']
o
d) $_SESSION['session_id']
Answer: a
6. How can
you check if a user is logged in?
o
a) Check if the $_SESSION['user_id'] is set
o
b) Check if the $_SESSION['logged_in'] is set
o
c) Check if the $_COOKIE['user'] is set
o
d) Check if the user is in the database
Answer: a
7. What
happens if the session_unset() function is called in PHP?
o
a) It destroys all session variables
o
b) It removes the session data from the database
o
c) It starts a new session
o
d) It initializes the session variables again
Answer: a
8. Which
method is generally used for submitting the login form in PHP?
o
a) POST
o
b) GET
o
c) PUT
o
d) DELETE
Answer: a
9. What is
the purpose of mysqli_real_escape_string() in PHP?
o
a) It checks the password strength
o
b) It escapes special characters to prevent SQL
injection
o
c) It retrieves data from the database
o
d) It initializes a session
Answer: b
10.
Which function is used to end a session in PHP?
- a)
session_end()
- b)
session_destroy()
- c)
session_stop()
- d)
session_finish()
Answer: b
Database
Interaction and CRUD Operations
11.
Which SQL statement is used to retrieve data from a
database?
- a)
UPDATE
- b)
SELECT
- c)
INSERT
- d) DELETE
Answer: b
12.
What SQL keyword is used to ensure that data is
added only once in the database (no duplicates)?
- a)
UNIQUE
- b)
DISTINCT
- c)
PRIMARY KEY
- d)
AUTO_INCREMENT
Answer: a
13.
What type of SQL query would you use to delete a
product from a database?
- a)
DELETE FROM
- b)
REMOVE
- c)
REMOVE FROM
- d)
DROP
Answer: a
14.
Which PHP function is used to execute a SQL query?
- a)
mysqli_fetch_assoc()
- b)
mysqli_query()
- c)
mysqli_fetch_array()
- d)
mysqli_connect()
Answer: b
15.
What does the mysqli_fetch_assoc() function do?
- a)
It retrieves all rows from a result set
- b)
It fetches a single row from the result set as an associative array
- c)
It closes the database connection
- d)
It inserts a new row into the database
Answer: b
16.
In PHP, how do you protect a query from SQL
injection?
- a)
Using mysqli_real_escape_string()
- b)
Using password_hash()
- c)
Using session_start()
- d)
Using mysqli_fetch_assoc()
Answer: a
17.
What is the purpose of the AUTO_INCREMENT property
in a MySQL table?
- a)
To automatically increment the value of a column for every new row
- b)
To increase the size of the table
- c)
To automatically delete old rows
- d)
To add data to a table without specifying a value
Answer: a
18.
Which SQL command would you use to update an
existing product’s price in the database?
- a)
UPDATE
- b)
INSERT
- c)
SELECT
- d)
MODIFY
Answer: a
19.
How do you ensure that form data is inserted into
the correct column in a MySQL table?
- a)
By using the correct SQL query column names
- b)
By using the mysqli_real_escape_string()
function
- c)
By checking the HTML form labels
- d) By
using the $_GET method
Answer: a
20.
How can you check if a query execution was
successful in PHP?
- a)
By using mysqli_fetch_assoc()
- b)
By checking the result of mysqli_query()
- c)
By using the exit() function
- d)
By checking the $result variable
Answer: b
Product
Management and Admin Panel
21.
In an e-commerce project, who typically manages the
products?
- a)
Admin
- b)
User
- c)
Guest
- d)
System
Answer: a
22.
Which method can be used to upload an image for a
product in PHP?
- a) move_uploaded_file()
- b) upload_file()
- c) store_image()
- d) save_uploaded_image()
Answer: a
23.
How do you validate the file type when uploading an
image in PHP?
- a)
Using getimagesize()
- b)
Using imagecreatefromjpeg()
- c)
Using move_uploaded_file()
- d)
Using file_get_contents()
Answer: a
24.
Which HTML attribute is used to specify the file
input for uploading a product image?
- a)
type="file"
- b)
type="image"
- c)
type="submit"
- d)
type="button"
Answer: a
25.
What is the purpose of the $_FILES
superglobal in PHP?
- a)
To handle form data
- b)
To handle uploaded files
- c)
To store session data
- d)
To store cookie data
Answer: b
26.
Which method should be used to insert a product
into the products table in the database?
- a)
SQL INSERT INTO query
- b)
SQL UPDATE query
- c)
SQL SELECT query
- d)
SQL DELETE query
Answer: a
27.
In an admin panel, how should you display a list of
all products in the database?
- a)
By using an SQL SELECT query
- b)
By using a loop with mysqli_fetch_assoc()
- c)
By using an INSERT INTO query
- d)
By using $_GET method
Answer: b
28.
How can an admin delete a product from the product
list?
- a)
By using an SQL DELETE query
- b)
By using an SQL UPDATE query
- c)
By clicking on a button
- d)
By using mysqli_fetch_assoc()
Answer: a
29.
Which function is used to check if a file was
successfully uploaded in PHP?
- a) move_uploaded_file()
- b) file_exists()
- c) is_uploaded_file()
- d) upload_success()
Answer: c
30.
What type of user can add, update, or delete
products from the admin panel in an e-commerce application?
- a)
Admin
- b)
User
- c)
Guest
- d)
System
Answer: a
Order
Management and Checkout Process
31.
How do you retrieve the user’s order details from
the database?
- a)
By using an SQL SELECT query with the user's order
ID
- b)
By using an SQL UPDATE query with the user's order
ID
- c)
By using an SQL DELETE query with the user's order
ID
- d)
By using $_GET to fetch order details
Answer: a
32.
What is the purpose of a shopping cart in an
e-commerce system?
- a)
To store items temporarily until the user decides to checkout
- b)
To allow users to save items for later use
- c)
To display all orders in the system
- d)
To process payments
Answer: a
33.
How do you implement an order history for users in
PHP?
- a)
By storing order details in a separate table in the database
- b)
By using $_SESSION to store past orders
- c)
By saving orders in a text file
- d)
By using an array in PHP
Answer: a
34.
Which payment method is most commonly integrated
into PHP-based e-commerce sites?
- a)
PayPal
- b)
Direct bank transfer
- c)
Check payments
- d)
Postal service
Answer: a
35.
How do you handle stock availability when
processing orders in PHP?
- a)
By updating the product quantity in the database
- b)
By disabling the product listing
- c)
By notifying the user with a message
- d)
By removing the product from the product table
Answer: a
Security
and Error Handling
36.
Which PHP function should be used to prevent SQL
injection when using user input in queries?
- a) mysqli_real_escape_string()
- b) mysqli_fetch_assoc()
- c) mysqli_query()
- d) session_start()
Answer: a
37.
What is the primary purpose of using HTTPS in an
e-commerce site?
- a)
To encrypt data sent between the client and server
- b)
To allow users to login without a password
- c)
To enable session handling
- d)
To increase page load speed
Answer: a
38.
What is the role of error_reporting(E_ALL); in PHP?
- a)
It shows all types of errors and warnings
- b)
It hides all errors from the user
- c)
It logs errors to a file
- d)
It displays only warnings
Answer: a
39.
Which method is used to protect sensitive data like
user passwords?
- a)
Hashing
- b)
Encrypting with AES
- c)
Encrypting with RSA
- d)
Storing in plain text
Answer: a
40.
How can you prevent unauthorized access to certain
pages in PHP?
- a)
By checking if the user is logged in
- b)
By using session_start() at the beginning of the page
- c)
By restricting access to admin pages
- d)
All of the above
Answer: d
Front-End
and User Interface
41.
Which CSS property is commonly used to style
buttons on an e-commerce website?
- a) background-color
- b) border
- c) padding
- d)
All of the above
Answer: d
42.
What is the role of Bootstrap in web development?
- a)
To style web pages with pre-built responsive components
- b)
To build server-side logic
- c)
To handle database interactions
- d)
To manage session handling
Answer: a
43.
How can you create a responsive layout for
different screen sizes?
- a)
By using media queries
- b)
By using flexbox
- c)
By using grid layout
- d)
All of the above
Answer: d
These MCQs cover a range of
topics related to building an e-commerce project in PHP, from user login
systems to product management, order processing, security, and front-end
design. They help reinforce key concepts and practices essential for real-world
PHP project development.
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Here are additional
multiple-choice questions (MCQs) related to various topics in PHP and
e-commerce development:
Product
Management and Catalog
44.
How would you manage product images in an
e-commerce site using PHP?
- a)
By uploading images to the server and storing image paths in the database
- b)
By embedding images directly into the database as binary data
- c)
By linking external image URLs from other sites
- d)
By uploading images in the form of .zip files
Answer: a
45.
Which PHP function can be used to handle file
uploads for product images?
- a) move_uploaded_file()
- b) file_put_contents()
- c) fopen()
- d) copy()
Answer: a
46.
How would you display a product in a list with
pagination in PHP?
- a)
By fetching all products at once and displaying them on a single page
- b)
By using SQL LIMIT with OFFSET to
fetch products in pages
- c)
By using JavaScript to paginate the results
- d)
By loading products asynchronously through AJAX
Answer: b
47.
Which SQL query would you use to fetch the top 5
best-selling products?
- a) SELECT
* FROM products ORDER BY sales DESC LIMIT 5;
- b) SELECT
* FROM orders WHERE status = 'completed' LIMIT 5;
- c) SELECT
* FROM products ORDER BY price DESC;
- d) SELECT
* FROM orders LIMIT 5;
Answer: a
Shopping
Cart and Checkout Process
48.
Which PHP session variable would you use to store
shopping cart items?
- a) $_SESSION['cart']
- b) $_POST['cart']
- c) $_COOKIE['cart']
- d) $_GET['cart']
Answer: a
49.
How would you calculate the total price of items in
a shopping cart using PHP?
- a)
By looping through the cart items, multiplying quantities by item prices,
and summing them
- b)
By using the sum() function on the cart array
- c)
By using a query to sum the prices of products in the cart
- d)
By calculating total price once per session
Answer: a
50.
What is the primary function of the $_POST
superglobal in PHP when handling the checkout process?
- a)
To send data from the client-side to the server (e.g., shipping address,
payment details)
- b)
To retrieve product information from the database
- c)
To store user login credentials
- d)
To retrieve products added to the cart
Answer: a
51.
What would you store in the session when a user
checks out?
- a)
User's order details and payment status
- b)
User's shopping cart items
- c)
User's address and contact details
- d)
All of the above
Answer: d
52.
How can you prevent duplicate items from being
added to the shopping cart in PHP?
- a)
By checking if the item already exists in the cart session before adding
- b)
By limiting the number of items a user can add
- c)
By clearing the cart on every page refresh
- d)
By using unique session IDs for each cart
Answer: a
Security
and Authentication
53.
Which method should you use to store a user's
password securely in PHP?
- a)
Use password_hash() to hash the password before storing it in the
database
- b)
Use md5() to encrypt the password before storing it
- c)
Store the password as plain text
- d)
Use base64_encode() to encode the password
Answer: a
54.
What does the PHP function password_verify() do?
- a)
It checks if the password entered by the user matches the hashed password
in the database
- b)
It encrypts the password before saving it
- c)
It generates a new password hash
- d)
It compares two plain-text passwords
Answer: a
55.
What is a CSRF attack, and how can it be prevented
in PHP-based e-commerce websites?
- a)
CSRF is a Cross-Site Request Forgery attack, and it can be prevented by
using tokens in forms
- b)
CSRF is a Cross-Site Scripting attack, and it can be prevented by
sanitizing user input
- c)
CSRF is an SQL injection attack, and it can be prevented by using
parameterized queries
- d)
CSRF is a session hijacking attack, and it can be prevented by using
session management techniques
Answer: a
56.
What is the purpose of session_regenerate_id() in PHP?
- a)
To create a new session ID and mitigate session fixation attacks
- b)
To create a new user ID
- c)
To reset the session timeout
- d)
To store user preferences in the session
Answer: a
57.
How can you limit the number of login attempts to
prevent brute force attacks in PHP?
- a)
By storing the number of login attempts in a session and blocking further
attempts after a threshold
- b)
By using a CAPTCHA after a certain number of failed attempts
- c)
By restricting IP addresses after multiple failed logins
- d)
All of the above
Answer: d
Payments
and Integrations
58.
How would you securely integrate a payment gateway
like PayPal into a PHP-based e-commerce site?
- a)
By using PayPal's API to handle payment processing on their server
- b)
By directly processing credit card information in your own server
- c)
By redirecting users to an external payment page that collects payment
details
- d)
By using PHP to store user payment information
Answer: a
59.
What is the purpose of using a sandbox environment
when integrating a payment gateway in PHP?
- a)
To test the payment gateway integration without processing real
transactions
- b)
To encrypt payment information securely
- c)
To avoid payment fraud
- d)
To validate user addresses
Answer: a
60.
Which PHP function is used to generate secure SSL
connections when integrating third-party APIs for payment processing?
- a) curl_setopt()
- b) file_get_contents()
- c) openssl_encrypt()
- d) fsockopen()
Answer: a
Performance
and Optimization
61.
How can you improve the performance of a PHP-based
e-commerce website?
- a)
By caching pages or database queries to reduce load times
- b)
By optimizing image sizes for faster loading
- c)
By using a content delivery network (CDN)
- d)
All of the above
Answer: d
62.
Which method is commonly used to improve the speed
of data retrieval in PHP when handling large product catalogs?
- a)
Using database indexes
- b)
Using file-based storage for product data
- c)
Storing product data in a cache
- d)
All of the above
Answer: d
63.
How would you handle a large number of users
concurrently on an e-commerce website built with PHP?
- a)
By using a load balancer to distribute traffic across multiple servers
- b)
By optimizing the database with proper indexing and query optimization
- c)
By implementing session handling and caching mechanisms to reduce server
load
- d)
All of the above
Answer: d
These additional questions aim to
test a deeper understanding of PHP-related topics, including product management,
checkout processes, security, performance optimization, and third-party
integrations. They will help strengthen the knowledge needed for building
secure and efficient e-commerce websites.
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Here are more multiple-choice
questions (MCQs) based on PHP e-commerce development concepts:
Product
and Inventory Management
64.
What is the purpose of a product SKU (Stock Keeping
Unit) in an e-commerce website?
- a)
To track the inventory of products uniquely
- b)
To display product prices
- c)
To store product reviews
- d)
To determine the order status
Answer: a
65.
Which SQL command would you use to update a
product’s price in the database?
- a) UPDATE
products SET price = 19.99 WHERE id = 5;
- b) ALTER
products SET price = 19.99 WHERE id = 5;
- c) MODIFY
products SET price = 19.99 WHERE id = 5;
- d) CHANGE
products SET price = 19.99 WHERE id = 5;
Answer: a
66.
What would you use to manage product availability
when an item is out of stock in PHP?
- a)
Change the product’s status in the database to ‘out of stock’
- b)
Delete the product from the database
- c)
Set a low stock threshold to warn administrators
- d)
All of the above
Answer: d
67.
How would you display product categories in a
drop-down menu using PHP?
- a)
By fetching categories from the database and creating <option>
elements dynamically
- b)
By hardcoding categories into HTML
- c)
By using an array of categories in PHP
- d)
Both a and c
Answer: d
User
Registration and Login
68.
Which PHP function is used to start a session for
user authentication?
- a) session_start()
- b) start_session()
- c) initialize_session()
- d) session_create()
Answer: a
69.
What should be done after a user successfully logs
in to an e-commerce site?
- a)
Store user information in a session variable
- b)
Redirect the user to a user dashboard or home page
- c)
Set a session timeout to log the user out after inactivity
- d)
All of the above
Answer: d
70.
How would you handle the situation when a user
forgets their password in a PHP application?
- a)
By sending a password reset link via email
- b)
By allowing the user to choose a new password
- c)
By checking the user’s security questions
- d)
All of the above
Answer: d
71.
What is the most secure way to store user passwords
in PHP?
- a)
Use password_hash() to hash passwords before saving them to the
database
- b)
Encrypt passwords using AES encryption
- c)
Use MD5 or SHA1 to hash passwords
- d)
Store passwords as plain text
Answer: a
Order
Management and Checkout Process
72.
How would you handle the calculation of shipping
costs in PHP?
- a)
By using the user’s address to calculate the distance and apply the
correct shipping rates
- b)
By having a fixed rate for shipping
- c)
By applying a percentage of the total order value as shipping cost
- d)
All of the above
Answer: d
73.
What type of database relationship should be used
between orders and products in an
e-commerce site?
- a)
One-to-many (one order can have many products)
- b)
Many-to-many (many orders can have many products)
- c)
One-to-one (one order has one product)
- d)
None of the above
Answer: b
74.
How do you calculate the total price including
taxes and shipping in PHP?
- a)
Multiply the item price by the quantity, add tax, and then add shipping
- b)
Simply add tax to the item price
- c)
Apply a flat percentage increase to the total order amount
- d)
All of the above
Answer: a
75.
How do you validate credit card information during
checkout in PHP?
- a)
Use regular expressions to check the format of the card number
- b)
Verify the card with the payment gateway (e.g., PayPal, Stripe)
- c)
Encrypt the card details before sending to the server
- d)
All of the above
Answer: d
Security
and Data Protection
76.
What is SQL injection, and how can you prevent it
in PHP?
- a)
SQL injection is a technique where attackers inject malicious SQL code
into queries; it can be prevented by using prepared statements and
parameterized queries
- b)
SQL injection is an attack that targets the server’s configuration; it can
be prevented by sanitizing user input
- c)
SQL injection targets sensitive data like passwords; it can be prevented
by using hashing
- d)
SQL injection happens when the database is not optimized; it can be
prevented by optimizing queries
Answer: a
77.
How can you ensure sensitive data like credit card
information is handled securely in PHP?
- a)
By using HTTPS for all pages where sensitive information is exchanged
- b)
By storing sensitive data in an encrypted format in the database
- c)
By using tokenization when processing payments
- d)
All of the above
Answer: d
78.
What is the purpose of a CAPTCHA in an e-commerce
site?
- a)
To verify that the user is human and not a bot
- b)
To authenticate users during login
- c)
To encrypt user passwords
- d)
To verify the user’s age
Answer: a
79.
How do you protect PHP applications from XSS
(Cross-Site Scripting) attacks?
- a)
By sanitizing user input and escaping output to prevent scripts from being
injected
- b)
By using HTTPS for all communications
- c)
By using prepared statements for SQL queries
- d)
By setting a session timeout limit
Answer: a
80.
How can you avoid session fixation attacks in PHP?
- a)
By regenerating the session ID using session_regenerate_id()
- b)
By storing session data in a database instead of on the server
- c)
By using secure cookies for sessions
- d)
All of the above
Answer: a
Front-End
Development
81.
Which CSS property is commonly used to make a
website mobile responsive?
- a) width
- b) media
queries
- c) position
- d) font-size
Answer: b
82.
What is the role of JavaScript in an e-commerce
website?
- a)
To enhance user interactivity, such as adding items to the cart or
updating product quantities dynamically
- b)
To process payments securely
- c)
To manage server-side data
- d)
To handle database queries
Answer: a
83.
How can you improve page load time in a PHP-based
e-commerce site?
- a)
By compressing images before uploading
- b)
By enabling caching for static resources
- c)
By minimizing JavaScript and CSS files
- d)
All of the above
Answer: d
84.
How can you implement a product search feature in
PHP?
- a)
By querying the database for matching products based on the search keyword
- b)
By filtering products client-side using JavaScript
- c)
By using an external search API
- d)
All of the above
Answer: a
Performance
Optimization
85.
How would you optimize database queries in PHP for
faster performance?
- a)
By using indexes on frequently queried columns
- b)
By reducing the number of queries made to the database
- c)
By using pagination for large datasets
- d)
All of the above
Answer: d
86.
Which PHP function can be used to cache results of
database queries to reduce load time?
- a) memcached()
- b) file_put_contents()
- c) apc_store()
- d) cache_results()
Answer: a
87.
What is the purpose of using a content delivery
network (CDN) for an e-commerce website?
- a)
To serve static resources like images, CSS, and JavaScript faster by
caching them on servers closer to the user
- b)
To store all e-commerce data in one centralized location
- c)
To improve server-side PHP script performance
- d)
To increase session storage capabilities
Answer: a
88.
How do you prevent a website from becoming slow as
the number of products and users grows?
- a)
By scaling the server infrastructure horizontally to handle more requests
- b)
By optimizing database queries and reducing redundant data
- c)
By using database replication and clustering
- d)
All of the above
Answer: d
General
PHP Development
89.
What is the purpose of Composer in PHP?
- a)
To manage dependencies and autoload libraries
- b)
To compile PHP code
- c)
To run PHP scripts in the terminal
- d)
To create database migrations
Answer: a
90.
How would you debug a PHP application?
- a)
By using echo and var_dump() to print variables and
check values
- b)
By checking the PHP error log
- c)
By using a debugger like Xdebug
- d)
All of the above
Answer: d
These questions cover various
aspects of developing an e-commerce website using PHP and related technologies,
from user management to database optimization and security measures.
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Here are more multiple-choice
questions (MCQs) for your PHP-based e-commerce development course:
Security
and Data Handling
91.
Which of the following is a secure method for
preventing Cross-Site Request Forgery (CSRF) attacks in PHP?
- a)
Using tokens embedded in forms that must be verified by the server
- b)
Encrypting the entire request body
- c)
Restricting HTTP requests to only POST methods
- d)
Storing sensitive information in cookies only
Answer: a
92.
What PHP function is used to prevent HTML special
characters from being executed on the page?
- a) htmlspecialchars()
- b) htmlentities()
- c) strip_tags()
- d) escape_html()
Answer: a
93.
What would you use to store user passwords securely
in PHP?
- a)
Encrypt the password with AES encryption
- b)
Use password_hash() and password_verify()
- c)
Store the password as plain text and hash it later
- d)
Store the password using MD5 hashing
Answer: b
94.
Which PHP function can you use to sanitize user
input before inserting it into the database?
- a) mysqli_real_escape_string()
- b) htmlspecialchars()
- c) strip_tags()
- d)
All of the above
Answer: a
95.
Which PHP function would you use to verify that a
session is still valid during user authentication?
- a) session_validate()
- b) session_is_valid()
- c) session_start()
- d) session_id()
Answer: c
Database
Management
96.
Which of the following is an example of a
many-to-many relationship in a PHP-based e-commerce website database?
- a)
An order contains multiple products, and a product can appear in multiple
orders
- b) A
product has only one category
- c) A
customer can place only one order
- d) A
product can only have one supplier
Answer: a
97.
When creating a shopping cart feature in PHP, how
would you associate multiple products with one user's cart?
- a)
By using a session to temporarily store product details for the user
- b)
By creating a cart_tbl in the database and
associating each cart with a user
- c)
Both a and b
- d)
By creating a cart_items table and using a foreign
key to the users table
Answer: c
98.
How would you ensure data integrity while working
with a products_tbl and orders_tbl in PHP?
- a)
Use foreign keys to enforce referential integrity
- b)
Use triggers to validate data during insert/update operations
- c)
Ensure both tables are indexed for faster queries
- d)
All of the above
Answer: d
99.
What is the best method for displaying product
categories in a dynamic menu using PHP and MySQL?
- a)
Using an HTML <select> element and populating it
with categories fetched from the database
- b)
Hardcoding the categories in HTML
- c)
Using PHP arrays to manage the categories
- d)
Both a and c
Answer: d
Shopping
Cart and Checkout Process
100.
How would you calculate the total price for an
order in PHP, including discounts and taxes?
- a)
Add the item prices and apply the discount, then calculate the tax on the
total price
- b) Calculate
the tax and discount separately for each item
- c)
Only apply the discount, the tax is fixed
- d)
Multiply the total price by a flat tax rate
Answer: a
101.
What is the role of a session in managing a
shopping cart in PHP?
- a)
To store the cart contents temporarily while the user is browsing
- b)
To store the user's payment details
- c)
To authenticate the user before checkout
- d)
To prevent users from accessing the cart on multiple devices
Answer: a
102.
In a PHP shopping cart system, which of the
following should be done when a user places an order?
- a)
Update the product stock in the database
- b)
Create a new entry in the orders table with the product
details
- c)
Send an order confirmation email to the customer
- d)
All of the above
Answer: d
103.
When should you clear a user’s shopping cart in a
PHP application?
- a)
When the user logs out
- b)
After a successful purchase
- c)
When the session expires
- d)
All of the above
Answer: d
Payment
Gateway Integration
104.
Which PHP function would you use to redirect the
user to a payment gateway’s secure page?
- a) header()
- b) redirect()
- c) location()
- d) forward()
Answer: a
105.
What is the main purpose of integrating a payment
gateway in an e-commerce website?
- a)
To securely handle credit card transactions
- b)
To verify the availability of products in the cart
- c)
To calculate shipping costs
- d)
To generate invoices for the customer
Answer: a
106.
Which of the following is NOT typically a part of
integrating a payment gateway into a PHP e-commerce site?
- a)
Sending payment data to the gateway for processing
- b)
Storing sensitive customer payment details in your own database
- c)
Handling the response from the gateway (success or failure)
- d)
Creating a secure connection for data transmission (e.g., HTTPS)
Answer: b
Front-End
Integration
107.
How can you make product images responsive on an
e-commerce website using CSS?
- a)
By setting the width and height to 100% in
the CSS
- b)
By using object-fit: contain; in the CSS for image
scaling
- c)
By setting max-width: 100%; to ensure images scale
properly
- d)
Both b and c
Answer: d
108.
What does the hover effect in CSS do in relation to
products on an e-commerce site?
- a)
It highlights a product image when a user moves the cursor over it
- b)
It increases the price of the product on hover
- c)
It shows additional product details when hovered over
- d)
Both a and c
Answer: d
109.
What is the purpose of implementing infinite
scrolling in an e-commerce website using JavaScript?
- a)
To load more products automatically as the user scrolls, without needing
pagination
- b)
To display products in a grid layout
- c)
To display only featured products on the homepage
- d)
To load product images faster
Answer: a
User
Experience
110.
What would be the best approach to improving the
user experience on a product page in a PHP-based e-commerce website?
- a)
Providing detailed product descriptions, clear images, and customer
reviews
- b)
Making the checkout process as short as possible
- c)
Displaying similar products to encourage more purchases
- d)
All of the above
Answer: d
111.
How can you use PHP to implement a product rating
system?
- a)
Store ratings in the database and display them dynamically using PHP
- b)
Allow users to vote for products using JavaScript
- c)
Use external APIs to pull ratings for products
- d)
Allow users to review products without storing any data
Answer: a
Advanced
PHP Features
112.
How would you handle an exception in PHP when an
error occurs during a database operation?
- a)
Use a try-catch block to catch the exception and handle it
gracefully
- b)
Use exit() to terminate the script execution
- c)
Log the error and redirect the user to the homepage
- d)
None of the above
Answer: a
113.
In PHP, what is the advantage of using an MVC
framework for building an e-commerce website?
- a)
It allows you to separate business logic from presentation, making the
code more organized
- b)
It speeds up the development process by providing ready-to-use components
- c)
It improves the scalability and maintainability of the application
- d)
All of the above
Answer: d
These additional questions cover
key concepts in building a PHP-based e-commerce website, such as database
management, security, payment gateway integration, front-end development, and
user experience.
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multiple-choice questions (MCQs) for your PHP-based e-commerce development
course:
E-commerce
Features and Functionalities
114.
What is the best way to implement product search
functionality in an e-commerce website using PHP?
- a)
Using JavaScript to filter results on the client-side
- b)
Using SQL LIKE queries to filter products
in the database based on search keywords
- c)
Hardcoding all product details into the search page
- d)
Implementing a full-text search engine such as Elasticsearch
Answer: b
115.
How can you implement product recommendations in an
e-commerce site using PHP?
- a)
By creating a recommendation system based on user browsing history
- b)
By manually curating a list of recommended products
- c)
By using a machine learning algorithm to suggest similar products
- d)
All of the above
Answer: d
116.
Which of the following PHP functions is used to
create a new user account in an e-commerce website?
- a) create_user()
- b) insert_user()
- c) user_register()
- d)
None of the above; you need to manually insert data using SQL queries
Answer: d
117.
What is the purpose of using a session in a
shopping cart system in PHP?
- a)
To store the user's login details
- b)
To save the user's shopping cart contents temporarily while they browse
the website
- c)
To track product views across different sessions
- d)
To store payment details
Answer: b
118.
How can you implement a product wishlist feature in
PHP for an e-commerce site?
- a)
Using PHP sessions to store user preferences temporarily
- b)
Storing the user's wishlist in a separate table in the database and
associating it with their account
- c)
Allowing users to bookmark products using browser bookmarks
- d)
Both a and b
Answer: d
Performance
Optimization
119.
How can you improve the performance of your
PHP-based e-commerce website?
- a)
By using caching for product pages and query results
- b)
By optimizing database queries and indexing frequently searched fields
- c)
By compressing images and assets like CSS and JavaScript files
- d)
All of the above
Answer: d
120.
Which of the following is a good practice to
optimize database performance for an e-commerce website?
- a)
Using LIMIT clauses to restrict the number of rows
returned by queries
- b)
Avoiding the use of indexes for frequently searched fields
- c)
Storing large files (e.g., product images) directly in the database
- d)
Running complex queries without caching the results
Answer: a
121.
What does "lazy loading" mean in the
context of a PHP-based e-commerce website?
- a)
Loading all product data when the website is accessed
- b)
Loading images and product data only when they are visible on the user's
screen
- c) Loading
only the product names and prices, and retrieving additional details on
demand
- d)
Both b and c
Answer: d
122.
Which of the following methods would best reduce
the loading time of a PHP-based e-commerce website?
- a)
Use pagination for large product catalogs instead of loading all products
on one page
- b)
Use asynchronous requests to load products in the background
- c)
Enable browser caching for static resources
- d)
All of the above
Answer: d
Order
Management
123.
How can you implement a system to track order
status in PHP?
- a)
By creating an orders table with a status
column in the database (e.g., pending, shipped, delivered)
- b)
By using cookies to store the user's order status
- c)
By using JavaScript to track the order status in the user's session
- d)
By sending an email to the customer each time the order status changes
Answer: a
124.
How would you handle returns and exchanges for
orders in a PHP e-commerce website?
- a) Allow
users to request returns or exchanges through a form, and store the
requests in the database
- b)
Automatically process returns and exchanges through the payment gateway
- c)
Deny all returns and exchanges
- d)
Both a and b
Answer: a
125.
What is the best way to implement an order
cancellation feature in PHP?
- a)
Add a cancel button on the order confirmation page that updates the order
status in the database
- b)
Allow users to cancel orders only by calling customer support
- c)
Automatically cancel orders after a fixed amount of time
- d)
Do not allow cancellations once the order is placed
Answer: a
User
Authentication and Authorization
126.
Which of the following methods would you use to
securely authenticate users on your PHP e-commerce website?
- a)
Storing plain text passwords in the database
- b)
Using PHP’s password_hash() and password_verify()
functions to securely store and check passwords
- c)
Using session IDs without encryption
- d)
Asking for the user's email address and password only, without any
encryption
Answer: b
127.
What is the role of two-factor authentication (2FA)
in PHP e-commerce websites?
- a)
It provides an additional layer of security by requiring users to verify
their identity using two methods
- b)
It encrypts user passwords before sending them over the network
- c)
It prevents users from logging in with incorrect passwords
- d)
It automatically logs users out after a certain period of inactivity
Answer: a
128.
How would you implement user roles (e.g., admin,
customer) in a PHP e-commerce website?
- a)
Store the role in the user’s session and check it on every page to control
access
- b)
Use the role data in the users table to restrict access to
certain pages
- c)
Both a and b
- d)
Use JavaScript to handle roles
Answer: c
129.
Which PHP function can be used to log users out by
destroying their session data?
- a) session_end()
- b) session_destroy()
- c) logout_user()
- d) clear_session()
Answer: b
Shipping
and Tax Calculations
130.
Which of the following methods can you use to
calculate shipping costs in a PHP-based e-commerce website?
- a)
By using flat-rate shipping for all orders
- b)
By calculating shipping based on the weight and destination of the order
- c)
By offering free shipping on all orders
- d)
All of the above
Answer: b
131.
How can you implement dynamic tax calculation in a
PHP-based e-commerce site?
- a)
By using hardcoded tax rates for each region
- b)
By creating a tax table in the database and calculating taxes based on the
user's location
- c)
By calculating taxes manually for each order at checkout
- d)
By asking the user to manually input tax information during checkout
Answer: b
132.
What is the best approach for handling different
shipping methods (e.g., standard, expedited) in PHP?
- a)
Provide users with a choice of shipping methods during checkout and
calculate the cost for each
- b)
Only allow one shipping method for all orders
- c)
Hardcode shipping rates based on location
- d)
Let users choose their shipping method, but charge the same rate for all
options
Answer: a
Payment
and Invoice Management
133.
Which of the following PHP functions is commonly
used to generate invoices in an e-commerce website?
- a) generate_invoice()
- b) create_pdf()
- c) tcpdf()
- d) invoice_generate()
Answer: c
134.
How can you handle refunds in a PHP e-commerce
website when a customer requests one?
- a)
Manually process the refund by updating the order status in the database
- b)
Integrate with a payment gateway's API to automatically process the refund
- c)
Both a and b
- d)
Do not allow refunds after the purchase
Answer: c
135.
What would be the best way to implement a discount
coupon system in PHP for an e-commerce website?
- a)
Store coupon codes and their associated discounts in the database and
validate them at checkout
- b)
Hardcode coupon codes and their discounts in the checkout page
- c)
Allow users to generate their own discount codes
- d)
Only offer discounts through external services, not directly on the
website
Answer: a
These questions cover topics such
as order management, user authentication, shipping, payment integration,
security, and performance optimization in PHP-based e-commerce websites.
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Here are more multiple-choice
questions (MCQs) based on the PHP e-commerce website development concepts:
E-commerce
Security
136.
What is the primary purpose of using SSL (Secure
Socket Layer) on an e-commerce website?
- a)
To improve website performance
- b)
To encrypt data exchanged between the website and the user, ensuring
privacy and security
- c)
To enhance the website's appearance
- d)
To store user login details securely
Answer: b
137.
Which of the following PHP functions can help
prevent SQL injection attacks on an e-commerce website?
- a) mysqli_query()
- b) mysql_fetch_array()
- c) mysqli_real_escape_string()
- d) $_POST()
Answer: c
138.
What is Cross-Site Scripting (XSS) in an e-commerce
site?
- a) A
vulnerability that allows attackers to inject malicious scripts into web
pages viewed by other users
- b) A
type of SQL injection
- c) A
method for securing user passwords
- d) A
process for protecting session data
Answer: a
139.
How can you prevent Cross-Site Scripting (XSS) on
an e-commerce site using PHP?
- a)
By validating and sanitizing user inputs before displaying them on the
website
- b)
By using password_hash() to store user passwords
- c)
By preventing users from logging in
- d)
By restricting user access to certain pages
Answer: a
140.
How can you secure payment transactions on an
e-commerce website?
- a)
By encrypting sensitive payment data using SSL/TLS
- b)
By storing credit card details in plain text
- c)
By using an external third-party payment gateway with secure integration
- d)
Both a and c
Answer: d
Order
Management and Checkout Process
141.
What is the best way to handle shopping cart
contents when a user logs in to an e-commerce website?
- a)
Store the shopping cart in the user's session or database, linked to their
account
- b)
Discard the cart and start a new one when the user logs in
- c)
Store the shopping cart in cookies on the user's browser
- d)
Ask the user to manually re-add items to the cart after logging in
Answer: a
142.
How can you manage inventory stock in a PHP-based
e-commerce website?
- a)
By reducing stock quantity after an order is placed and updating the
database
- b)
By allowing customers to purchase out-of-stock products
- c)
By storing the stock information only in the session
- d)
By tracking inventory manually without database updates
Answer: a
143.
What is the purpose of implementing a "guest
checkout" feature on an e-commerce website?
- a)
To allow users to check out without creating an account
- b)
To restrict users from checking out unless they sign up
- c)
To provide users with a discount for signing up
- d)
To ensure that every user creates an account before placing an order
Answer: a
144.
How can you calculate the total amount for an
order, including taxes, shipping, and discounts, in PHP?
- a)
By manually adding up the subtotal, taxes, shipping, and discount during
checkout
- b)
By storing these values in cookies
- c)
By using JavaScript to calculate the total without PHP
- d)
By asking the customer for the total amount
Answer: a
145.
How can you implement a coupon code feature in PHP
to apply discounts during checkout?
- a)
Store the coupon codes and their values in the database and validate the
code entered by the user
- b)
Provide coupon codes for only registered users
- c)
Automatically apply discounts without user input
- d)
Let users manually calculate the discount
Answer: a
Product
Management
146.
Which of the following can be used to implement
product categorization in a PHP-based e-commerce site?
- a)
Storing categories as plain text in the products
table
- b)
Using a separate categories table with a foreign key in
the products table
- c)
Hardcoding categories into the product display page
- d)
Allowing users to create their own categories
Answer: b
147.
How would you implement a product search feature in
PHP?
- a)
Use a SQL LIKE query to search for
products based on keywords entered by the user
- b)
Display all products and let users manually search through them
- c)
Hardcode product data into the search page
- d)
Allow users to filter products by price without querying the database
Answer: a
148.
What is the purpose of adding product images to an
e-commerce website?
- a)
To make the website more visually appealing and help users identify
products
- b)
To improve the website's SEO ranking
- c)
To provide detailed product information
- d)
All of the above
Answer: d
149.
How can you handle multiple product variants (such
as sizes or colors) in a PHP-based e-commerce website?
- a)
By creating a product_variants table with information
about size, color, and price variations
- b)
By allowing users to select variants from a dropdown on the product page
- c)
By creating a unique product page for each variant
- d)
Both a and b
Answer: d
150.
Which of the following is the best way to display
product details on an e-commerce website?
- a)
Display the product name, description, price, and images on the product
page
- b)
Only display the product name and price
- c)
Display the product name and provide a link to a separate page with more
details
- d)
Display only the product name
Answer: a
Payment
Gateway Integration
151.
Which of the following is a popular payment gateway
that can be integrated into a PHP-based e-commerce website?
- a)
PayPal
- b)
Stripe
- c)
Razorpay
- d)
All of the above
Answer: d
152.
How can you securely integrate a payment gateway
into a PHP e-commerce site?
- a)
By using HTTPS (SSL) to ensure encrypted communication with the payment
gateway
- b)
By collecting credit card details directly on the website
- c)
By using an API provided by the payment gateway
- d)
Both a and c
Answer: d
153.
What is the role of a "payment success"
page after a customer completes a payment on an e-commerce website?
- a)
To display a summary of the order and confirm that the payment was successful
- b)
To redirect the user back to the homepage
- c)
To ask the user for additional payment details
- d)
To process a refund automatically
Answer: a
154.
How would you handle a failed payment in a
PHP-based e-commerce website?
- a)
Show an error message to the user and allow them to try again
- b)
Redirect the user to a "Payment Failed" page
- c)
Log the error and send an email to the customer support team
- d)
Both a and b
Answer: d
155.
What is the main advantage of using an external
payment gateway (such as PayPal or Stripe) instead of directly handling
payments on your website?
- a)
It simplifies compliance with security standards like PCI-DSS
- b)
It allows you to handle credit card information securely
- c)
It takes responsibility for fraud prevention
- d)
All of the above
Answer: d
Testing
and Debugging
156.
How can you ensure that your PHP-based e-commerce
website is working correctly before deployment?
- a)
By manually testing the website on different devices and browsers
- b)
By using automated unit tests and debugging tools
- c)
By asking friends to test the website
- d)
All of the above
Answer: d
157.
Which of the following is a common debugging tool
for PHP developers?
- a)
Xdebug
- b)
var_dump()
- c)
error_log()
- d)
All of the above
Answer: d
158.
What is the purpose of using error handling in a
PHP e-commerce site?
- a)
To show friendly error messages to users when something goes wrong
- b)
To prevent errors from breaking the website functionality
- c)
To log errors for later debugging
- d)
All of the above
Answer: d
159.
How can you test the security of your PHP-based
e-commerce website?
- a)
By conducting penetration testing to identify vulnerabilities
- b)
By using automated security scanners
- c)
By reviewing the website's code and security best practices
- d)
All of the above
Answer: d
These questions cover important
topics like security, order management, product management, payment gateway
integration, and testing for a PHP-based e-commerce site.
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Here are more multiple-choice
questions (MCQs) based on the PHP e-commerce website development concepts:
Product
Management
160.
How can you implement a product filtering system
based on price range in PHP?
- a)
By using JavaScript to filter products without querying the database
- b)
By passing the selected price range as parameters in the SQL query to
retrieve filtered products
- c)
By displaying all products and asking users to manually filter them
- d)
By using cookies to store the selected price range
Answer: b
161.
Which of the following is the most effective way to
implement product sorting by name or price in PHP?
- a)
Sort products manually after displaying them on the page
- b)
Use SQL ORDER BY clause to sort products when retrieving them
from the database
- c)
Hardcode the product order into the HTML
- d)
Allow users to sort products using JavaScript without querying the
database
Answer: b
162.
How can you implement a "related
products" section on a product page in a PHP-based e-commerce website?
- a)
By displaying random products from the same category or similar keywords
- b)
By manually selecting the related products in the admin panel
- c)
By querying the database to show products that belong to the same category
or have similar attributes
- d)
Both a and c
Answer: d
163.
What is the best way to handle out-of-stock
products in an e-commerce website's product listings?
- a)
Display an "Out of Stock" label and hide the "Add to
Cart" button
- b)
Display out-of-stock products and allow customers to purchase them
- c)
Remove out-of-stock products from the listings
- d)
Display a "Coming Soon" message on out-of-stock products
Answer: a
164.
How can you implement pagination for displaying a
large number of products on a page in PHP?
- a)
By using a LIMIT clause in the SQL query to
fetch a subset of products
- b)
By displaying all products on a single page
- c)
By using JavaScript to paginate products on the frontend without querying
the database
- d)
By hiding extra products using CSS
Answer: a
Order
Processing
165.
How can you send an order confirmation email after
a successful purchase on an e-commerce website using PHP?
- a)
By using PHP’s mail() function to send a
confirmation email to the customer
- b)
By storing the confirmation email in a file and displaying it on the website
- c)
By using JavaScript to send the email after the order is placed
- d)
By relying on the user to manually check their email for confirmation
Answer: a
166.
What is the purpose of adding order statuses (such
as "Pending", "Shipped", "Delivered") in the
order processing system?
- a)
To track the current stage of an order in the fulfillment process
- b)
To display multiple statuses for each product in the order
- c) To
let the customer modify the order status
- d)
To allow the customer to cancel the order at any time
Answer: a
167.
How can you allow customers to cancel their orders
within a certain time frame on an e-commerce site?
- a)
By providing a cancellation button on the order confirmation page
- b)
By allowing customers to cancel orders through their user profile section
- c)
By implementing a time window (e.g., 24 hours) during which cancellations
are allowed
- d)
All of the above
Answer: d
168.
How can you calculate the shipping cost for an
order based on the delivery address in PHP?
- a)
By using a fixed shipping fee for all orders
- b)
By integrating with a third-party shipping API to calculate shipping costs
based on location
- c)
By allowing the user to select a shipping method without calculating the
cost
- d)
By offering free shipping for all orders
Answer: b
169.
What happens when an order is marked as
"Shipped" in the order management system?
- a)
The order status is updated, and a shipping confirmation email is sent to
the customer
- b)
The order is deleted from the database
- c)
The customer is automatically refunded
- d)
The product is removed from inventory without updating the database
Answer: a
User
Authentication and Roles
170.
What is the purpose of a user login system in an
e-commerce website?
- a)
To provide customers with personalized shopping experiences and order
tracking
- b)
To allow customers to add multiple products to the cart
- c)
To allow users to create wishlists without logging in
- d)
To increase the number of visitors on the website
Answer: a
171.
How can you implement a user login system in PHP?
- a)
By creating a login form and using PHP to authenticate the credentials
with the database
- b)
By using cookies to remember the login credentials without a database
- c)
By storing user credentials in the session variable
- d)
Both a and c
Answer: d
172.
What is the role of user roles (such as
"admin", "customer", "guest") on an e-commerce
website?
- a)
To restrict access to certain features based on user permissions
- b)
To allow customers to edit product information
- c)
To enable guests to place orders without creating an account
- d)
Both a and c
Answer: a
173.
How can you implement an admin panel to manage
products and orders on an e-commerce website?
- a)
By restricting access to certain pages based on the user role (e.g., only
admins can access the admin panel)
- b)
By providing a simple login form for admins and allowing them to manage
products
- c)
By displaying product and order management options on the user profile
page
- d) Both
a and b
Answer: d
174.
How can you protect sensitive user data, such as
passwords, in a PHP-based e-commerce website?
- a)
By hashing passwords using PHP’s password_hash() function before storing
them in the database
- b)
By encrypting passwords using SSL/TLS during transmission
- c)
By storing passwords as plain text in the database
- d)
Both a and b
Answer: d
Database
Management
175.
How can you implement a relational database to
handle product categories in a PHP-based e-commerce website?
- a)
By using a foreign key in the products table that references the categories
table
- b)
By hardcoding categories directly into the products
table
- c)
By creating separate databases for each product category
- d)
By storing category data in cookies
Answer: a
176.
What is the purpose of database normalization in
the context of a PHP-based e-commerce website?
- a)
To reduce data redundancy and improve database performance
- b)
To ensure that all data is stored in a single table
- c)
To improve website speed by reducing the number of queries
- d)
To make the website more visually appealing
Answer: a
177.
Which of the following is the best practice when
handling user input in a PHP-based e-commerce website?
- a)
Use parameterized queries or prepared statements to prevent SQL injection
- b)
Directly insert user input into SQL queries without validation
- c)
Store user input in plain text without encryption
- d)
Allow users to input special characters for better customization
Answer: a
178.
How can you implement a relationship between the orders and products tables
in a PHP-based e-commerce website?
- a)
By creating a many-to-many relationship with an intermediate table (e.g., order_items) to
link orders and products
- b)
By adding a foreign key from the orders table to the products
table
- c)
By creating a direct relationship between the two tables without any
intermediate table
- d)
Both a and b
Answer: a
179.
How can you prevent duplicate product entries in a
database?
- a)
By adding a unique constraint on the product name or SKU field in the
database
- b)
By manually checking for duplicates before inserting data into the database
- c)
By using a session variable to track products added to the database
- d)
Both a and b
Answer: d
Performance
Optimization
180.
How can you optimize the loading speed of an
e-commerce website with large product catalogs?
- a)
By using pagination to load a limited number of products at a time
- b)
By caching product data to reduce the number of database queries
- c)
By optimizing images and using a Content Delivery Network (CDN)
- d)
All of the above
Answer: d
181.
Which of the following is an effective way to
improve the performance of an e-commerce website with a large number of users?
- a)
Implement server-side caching for frequently accessed data
- b)
Use a database indexing strategy for common search queries
- c)
Use a load balancer to distribute traffic across multiple servers
- d)
All of the above
Answer: d
182.
What is the purpose of using a Content Delivery
Network (CDN) in an e-commerce website?
- a)
To store static assets (such as images, CSS, and JavaScript files) on servers
closer to the user for faster loading times
- b)
To store user data securely
- c)
To process payment transactions securely
- d)
To manage product inventory across multiple locations
Answer: a
These questions should provide a
comprehensive understanding of various aspects of developing an e-commerce
website using PHP and MySQL.