HTTP-StatusCode Mass Checker (WebBased V.1)

<head>
<title>HTTP-StatusCode Mass Checker</title>
<style type="text/css">
body {
color:#6300ff;
background:#111111;
font-family:'Fixedsys';
margin:9px;
padding:9px;
 }

textarea {
    color:#13e500;
    background:transparent;
    border-color:#a300ff;
    padding:5px;
    }

input {
        color:#13e500;
        background:#b00000;
        margin-top:10px;
        font-size:20px;
        border:2px solid #a300ff;
        font-family:Terminal;
        width:70%;
        }
</style>
</head>
<center>
<h1>HTTP-StatusCode Mass Checker</h1>
<form action='' method='POST'>
<textarea name='targed' placeholder="http://youListDomain.com/" style="width:60%;height:350px;"></textarea><br>
<center><input type='submit' name='gay' value='Check'></center>
</form>
<h0>~ Html404&copy;Res7ock-Crew ~</h0>
</center>

<!-- Want to recoded? !!Try to include copyright!! By Html404&copy;Res7ock-Crew --!>
<?php

$url = explode("\r\n",$_POST['targed']);

function cek($url){
$ch=curl_init();
curl_setopt ($ch, CURLOPT_URL,$url );
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_TIMEOUT, 5);
$page=curl_exec($ch);
$httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);

if($httpcode>=200 && $httpcode<300) return true;
else return false;
}
if($_POST['gay']){
foreach($url as $url1){
if(cek($url1)){
echo "• $url1 <font color='green'>OK</font><br>";
} else {
echo "• $url1 <font color='red'>DEAD</font><br>";
}
}
}
?>