rawurldecode

<?

$str = "-_.~0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";

$return = rawurldecode($str);

echo $return;

?>

-_.~0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz

<?

$str = "%20%21%40%23%24%25%5E%26%2A%28%29%2B%3D%7B%5B%7D%5D%7C%5C%3A%3B%22%27%3C%2C%3E%3F%2F";

$return = rawurldecode($str);

echo $return;

?>

 !@#$%^&*()+={[}]|\:;"'<,>?/

<?

$str = "decode%20non-alphanumeric";

$return = rawurldecode($str);

echo '<a href="https://domain.com/path?var=' . $str . '">' . $return . '</a>';

?>

<a href="https://domain.com/path?var=decode%20non-alphanumeric">decode non-alphanumeric</a>