workaround for magic quotes Gpc in php

The servers have magic quotes on and it cannot be turned off for some reason.....now stripslashes would remove all the slashes a开发者_Python百科dded by magic quotes,but if user has put slashes in the input field(we are allowing slashes), the stripslashes would remove that as well.

I am trying for a regex which would remove the slashes only if it is preceded by {',",}....

Any help would be appreciated.

I use this code in config file:

// remove slashes, if they are being automatically added
if ( get_magic_quotes_gpc () ) {
    $_GET    = array_map('stripslashes', $_GET);
    $_POST   = array_map('stripslashes', $_POST);
    $_COOKIE = array_map('stripslashes', $_COOKIE);
    $_REQUEST = array_map('stripslashes', $_REQUEST); // see ThiefMaster's comment
}

That's the only place where I have to worry about slashes. In all other places I can safely assume that there are no "magic quotes".

Though, stripslashes() does not work with arrays, so if you expect to have arrays as values in $_GET, $_POST or $_COOKIE (in public web pages/systems, you DO expect to have arrays), this function might be used as a callback:

function stripslashes_recursive($value) {
    if ( is_array($value) ) {
        return array_map(__FUNCTION__, $value);
    }
    return stripslashes($value);
}

PHP 5.3 users might use a closure as a callback:

$stripslashes = function($value) use(&$stripslashes) {
    if ( is_array($value) ) {
        return array_map($stripslashes, $value);
    }
    return stripslashes($value);
};

This won't pollute a global scope with additional function (stripslashes_recursive()).