Which of the following is NOT a common input validation technique for form data?
A). Regular Expressions
B). Whitelisting
C). Blacklisting
D). Tokenization
Which of the following is a secure method for storing passwords in a database?
A). Hashing
B). Encryption
C). Salting
D). All of the above
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
What is the purpose of using prepared statements when interacting with databases in PHP?
A). Preventing SQL Injection
B). Improving Performance
C). Encrypting Data
D). Enforcing Data Integrity
What security measure helps prevent form spamming by distinguishing between human users and bots?
A). CAPTCHA
B). HTTPS
C). CSRF Token
D). Two-Factor Authentication
Which PHP function is commonly used to check if a form field is empty?
A). empty()
B). isset()
C). is_empty()
D). is_null()
What is the primary purpose of form data validation in web applications?
A). Enhancing user experience
B). Preventing security vulnerabilities
C). Optimizing server performance
D). Improving search engine ranking
Which PHP function is commonly used to validate email addresses submitted through a form?
A). filter_var()
B). preg_match()
C). validate_email()
D). email_check()
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 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()