15. Which PHP function is commonly used to validate email addresses submitted through a form?

Which of the following is a common security vulnerability associated with form data submission?

A). SQL Injection

B). Form Spamming

C). Broken Authentication

D). Clickjacking

Which PHP function is used to generate a random CSRF token for form submissions?

A). bin2hex()

B). uniqid()

C). md5()

D). openssl_random_pseudo_bytes()

Which of the following is NOT a common security vulnerability associated with file uploads in web applications?

A). File Inclusion

B). File Upload Vulnerability

C). Path Traversal

D). Cross-Site Request Forgery

Which of the following is NOT a common input validation technique for form data?

A). Regular Expressions

B). Whitelisting

C). Blacklisting

D). Tokenization

What is the purpose of using HTTPS (HTTP Secure) in web applications?

A). Encrypting Data

B). Authenticating Users

C). Preventing XSS Attacks

D). Optimizing Page Load Speed

Which PHP function is commonly used to sanitize input data from a form to prevent SQL injection?

A). mysqli_real_escape_string()

B). htmlspecialchars()

C). filter_var()

D). htmlentities()

Which PHP function is commonly used to sanitize input data from a form to prevent XSS attacks?

A). htmlspecialchars()

B). htmlentities()

C). strip_tags()

D). filter_var()

Which of the following HTTP methods is considered safe and idempotent, making it suitable for form submissions?

A). POST

B). GET

C). PUT

D). DELETE

Which of the following is a best practice for preventing SQL Injection when executing SQL queries in PHP?

A). Use Parameterized Queries

B). Store Passwords in Plain Text

C). Use addslashes() Function

D). Disable Error Reporting

Which PHP function is commonly used to check if a form field is empty?

A). empty()

B). isset()

C). is_empty()

D). is_null()