How can the $PHP_SELF function be used securely in PHP scripts?

To use the $PHP_SELF function securely in PHP scripts, it is important to sanitize the input to prevent potential security vulnerabilities such as cross-site scripting (XSS) attacks. One way to do this is by using the htmlspecialchars() function to escape any HTML characters in the input before using it in your script. 

$php_self = htmlspecialchars($_SERVER['PHP_SELF']);
echo $php_self;

Keywords

PHP_SELF security input validation XSS form handling

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