PHP - mySQL sanitizer function ( technoslab.blogspot.com )

<?php
function sanitize($var){
    if(is_array($var)){
        return array_map('sanitize',$var);
    }
    else{
        if(get_magic_quotes_gpc()){
            $var = stripslashes($var);
        }
        $var = mysql_real_escape_string($var);
        return $var;
    }
}
?>