PHP for Beginners: The Complete PHP Security Course 2025

Source: https://www.udemy.com/course/php-for-beginners-the-complete-php-security-course-2025/

What you’ll learn

• Understand the most common PHP security vulnerabilities and how attackers exploit them.
• Protect against SQL Injection by using prepared statements and parameterized queries.
• Securely hash and verify passwords with PHP’s built-in functions.
• Implement session security and prevent session fixation attacks.
• Prevent Cross-Site Request Forgery (CSRF) with tokens and secure form handling.
• Safely handle file uploads with validation, MIME type checks, and renaming strategies.
• Disable dangerous PHP functions and configure PHP securely for production environments.
• Use .htaccess rules to block directory listing, restrict access, and protect sensitive files.
• Enforce HTTPS to protect data in transit and prevent man-in-the-middle attacks.
• Log errors safely and understand why fixing logged issues is critical for security.
• Apply backend validation and sanitization to protect against malicious input.
• Restrict access to directories and files using firewalls and IP-based protection.
• Understand the risks of Remote File Inclusion (RFI) and Local File Inclusion (LFI), and how to prevent them.
• Write secure redirects using headers and avoid common mistakes.
• Gain confidence in building secure, production-ready PHP applications.

Requirements

• Basic knowledge of PHP (variables, functions, forms)
• Understanding of HTML and MySQL is helpful

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