How does the register_globals setting in PHP servers impact variable handling in scripts?

The register_globals setting in PHP servers can pose a security risk by automatically turning global variables into script variables, potentially allowing malicious users to override or manipulate variables. To mitigate this risk, it is recommended to disable the register_globals setting in PHP configurations and instead use superglobal arrays like $_GET, $_POST, and $_SESSION to access variables.

// Disable register_globals in PHP configuration
// This can be done by setting register_globals = Off in php.ini file

// Access variables using superglobal arrays instead
$myVar = $_POST['myVar'];