1. 1.
    0
    foreach ($_GET as $check_url) {
    if (!is_array($check_url)) {
    $check_url = str_replace(""", "", $check_url);
    if ((preg_match("/<[^>]*script*"?[^>]*>/i", $check_url)) || (preg_match("/<[^>]*object*"?[^>]*>/i", $check_url)) ||
    (preg_match("/<[^>]*iframe*"?[^>]*>/i", $check_url)) || (preg_match("/<[^>]*applet*"?[^>]*>/i", $check_url)) ||
    (preg_match("/<[^>]*meta*"?[^>]*>/i", $check_url)) || (preg_match("/<[^>]*style*"?[^>]*>/i", $check_url)) ||
    (preg_match("/<[^>]*form*"?[^>]*>/i", $check_url)) || (preg_match("/([^>]*"?[^)]*)/i", $check_url)) ||
    (preg_match("/"/i", $check_url))) {
    die ();
    }
    }
    }
    unset($check_url);
    ···
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