php安全之直接用$获取值而不$_GET 字符转义

<?
function my_addslashes($string, $force = 0) {
!defined('magic_quotes_gpc') && define('magic_quotes_gpc', get_magic_quotes_gpc());
if(!magic_quotes_gpc || $force) {
if(is_array($string)) {
foreach($string as $key => $val) {
$string[$key] = my_addslashes($val, $force);
}
} else {
$string = addslashes($string);
}
}
return $string;
}
foreach(array('_cookie', '_post', '_get') as $_request) {
foreach($$_request as $_key => $_value) {
$_key{0} != '_' && $$_key = my_addslashes($_value);
}
}
echo $urls;
?>