这个foreach更好的解决方案？ PHP获取POST

Question

我写了这个函数来清理和转换传入的GET POST参数。 清洁功能包含：

if (get_magic_quotes_gpc())
{
    $str = stripslashes($str);
}

$str = mysql_real_escape_string($str);
$search = array('"', "\"", "'", "\'", "\\", "", ")", "$", "}","{", "`", "´");
$str = str_replace($search, "",$str);

问题是：虽然没有GET POST参数，但我的Dualcore 1.6GHz笔记本需要1.0108秒才能使用4 GB内存。

//this to avoid undefined variables    
$variableList = array(
    "action" => "get",
    "site" => "get",
    "lng" => "get",
    "save_profile" => "post",
    "pass" => "post",
    "name" => "post",
    "logout" => "get",
    "page" => "get"
);

foreach ($variableList as $key => $value)
{
    ${"_" . $value . ucfirst(clean($key))} = false;
    $smarty->assign("_$value" . ucfirst(clean($key)), false);
}

foreach ($_GET as $key => $value)
{
    ${"_get" . ucfirst(clean($key))} = clean($value);
    $smarty->assign("_get" . ucfirst(clean($key)), ${"_get" . ucfirst(clean($key))});
}

foreach ($_POST as $key => $value)
{
    ${"_post" . ucfirst(clean($key))} = clean($value);
    $smarty->assign("_post" . ucfirst(clean($key)), ${"_post" . ucfirst(clean($key))});
}

你有消化吗？