Simple Emails Filter

<?php
/*
            simple Script Emails Filter :D
            By bl4ck-dz
            yahoo//hotmail//outlook//mail//gmail//orange//live//aol
            gr33tz : sec4ever :D
*/
error_reporting(0);
echo '<html>
<title>Emails Filter </title>
<body bgcolor=""><center>
<form action="" method="POST">
<h1 style="font-family: Georgia, Serif;color:8B8B8B">Emails Filter </h1>
<img src="http://hermanoff.net/wp-content/uploads/2014/03/email.png" height="150" width="250" /><br>
<textarea id=textarea name="emails" rows=15 cols=45></textarea><br><br>
<input name="submit" type="submit" value="Start ..">
<style>
textarea {
  border: 1px solid #765942;
  border-radius: 10px;
  border-color: blue;
  border-style: solid;
  height:250px;
}
</style>
</form>';
$emails = $_POST['emails'];
$mails = array ("yahoo","hotmail","outlook","mail","gmail","orange","live","aol");
if (isset ($emails) && !empty ($emails)) {
    foreach (explode ("\n",$emails) as $email ) {
        foreach ($mails as $mail) {
            if (eregi('@'.$mail,$email)) {
                $save = fopen ($mail.'.txt','a+');
                fwrite ($save,"\n".$email);
                }else
                    $sav = fopen ('other.txt','a+');
                    fwrite($sav,"\n".$email);
            }
        }
        echo ' <br> Filtred :D ';
}

?>