What are some best practices for passing variables in PHP URLs?

When passing variables in PHP URLs, it is important to properly sanitize and validate the input to prevent security vulnerabilities such as SQL injection or cross-site scripting attacks. One best practice is to use the `urlencode()` function to encode the variables before appending them to the URL. Additionally, it is recommended to use the `$_GET` superglobal array to retrieve the variables from the URL. 

// Sanitize and validate input before passing variables in PHP URLs
$variable1 = urlencode($_GET['variable1']);
$variable2 = urlencode($_GET['variable2']);

// Use the sanitized variables in your application logic
echo "Variable 1: " . $variable1 . "<br>";
echo "Variable 2: " . $variable2;

Keywords

GET method POST method URL encoding $_GET superglobal $_POST superglobal

Related Questions