What are some potential pitfalls of using outdated PHP functions like $HTTP_GET_VARS instead of $_GET?

Using outdated PHP functions like $HTTP_GET_VARS can pose security risks as they are deprecated and no longer supported in newer PHP versions. It is recommended to use the superglobal $_GET instead, as it is more secure and reliable. 

// Using $_GET superglobal instead of $HTTP_GET_VARS
$value = isset($_GET['key']) ? $_GET['key'] : '';

Keywords

$HTTP_GET_VARS $_GET outdated functions security vulnerability deprecated

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