PHP Security refers to the measures taken to secure PHP web applications from common vulnerabilities such as SQL injection, cross-site scripting (XSS), and Cross-Site Request Forgery (CSRF) attacks. A few examples of measures to improve PHP security include using prepared statements, input validation, and enabling SSL for secure transactions.
Example 1: Prepared Statements
Prepared statements is a way to ensure that queries written in PHP are executed safely, protecting against SQL injection attacks. This can be done using the mysqli package library.
// prepare the statement $stmt = $mysqli->prepare("SELECT * FROM users WHERE username = ? AND password = ?");
Input validation is a technique that filters and sanitizes user input, preventing malicious data from being sent to PHP web applications. This can be done using the filter_input() function in PHP.
// prevent SQL injection by cleaning the input $username = filter_input(INPUT_POST, 'username', FILTER_SANITIZE_STRING); $password = filter_input(INPUT_POST, 'password', FILTER_SANITIZE_STRING);
// validate username and password if (!empty($username) && !empty($password)) { // login user } else { // display error message }
Example 3: Enabling SSL
Enabling SSL ensures that all data transmitted and received by PHP web applications is encrypted, protecting against eavesdropping attacks. This can be done using the OpenSSL package library.
PHP SECURITY - 4 examples found. These are the top rated real world PHP examples of SECURITY extracted from open source projects. You can rate examples to help us improve the quality of examples.