Strips slashes from a string or array of strings.
Callback for array_walk() within fix_gpx_magic().
$item: An individual string or array of strings from superglobals.
function _fix_gpc_magic(&$item) {
if (is_array($item)) {
array_walk($item, '_fix_gpc_magic');
}
else {
$item = stripslashes($item);
}
}