Untitled

<?php
if (isset($_GET['enSubmit']) && isset($_GET['uname']) && isset($_GET['rname'])){
    echo'<meta http-equiv="refresh" content="10">';
    $room=$_GET['rname'];
    $uname=$_GET['uname'];
    if (!is_dir($room)) mkdir($room);
    $files = scandir($room);
    foreach ($files as $user){
        if ($user=='.' || $user=='..') continue;
        $handle=fopen("$room/$user",'r');
        $time = fread($handle, filesize("$room/$user"));
        fclose($handle);
        if ((time()-$time)>1) unlink("$room/$user");
    }
    $contents='';
    $filename="$room.txt";
    if (file_exists($filename)){
        $handle = fopen($filename, "r");
        $contents = fread($handle, filesize($filename));
        fclose($handle);
    }
    $handle = fopen("$room/$uname", "w");
    fwrite($handle, time());
    fclose($handle);

    $files = scandir($room);
    $users='';
    foreach ($files as $user) if ($user!='.' && $user!='..') $users.=$user."\n";

    if (isset($_POST['Send'])){
        $text=$_POST['txt'];
        $contents.="$uname: $text";
        $handle = fopen("$filename", "a");
        fwrite($handle, "$uname: $text\n");
        fclose($handle);
    }
    $filename = "$room.txt";
if (file_exists($filename)) {
    echo "$filename was last modified: " . date ("F d Y H:i:s.", filemtime($filename));
}
?>
<body OnLoad="document.myform.txt.focus()">
<form action="" method="post" name="myform">
<table style="border: 1px solid #000000;width: 752px" align="center">
    <tr>
        <td style="font-family: 'Times New Roman', Times, serif;font-size: 17pt;text-align: center;width: 537; color: #2214B9;border-style: solid;border-width: 1px; height: 350px;">
            <textarea readonly="readonly" name="txtchat" style="width: 581px; color: #000000; height: 365px; background-color: #F4F8D1; font-family: 'times New Roman', Times, serif; font-size: 12pt;"><?php echo "Welcome to the $room chatroom...\n$contents"?> </textarea>
        </td>
        <td style="font-family: 'Times New Roman', Times, serif;font-size: 17pt;text-align: center;color: #2214B9;border-style: solid;border-width: 1px; height: 349px; width: 143px;">
            <textarea readonly="readonly"  contenteditable="false"  name="txtusers" style=";width: 163px; height: 365px; background-color: #D1F8D8; font-family: 'times New Roman', Times, serif; font-size: 12pt; font-weight: bold; text-align: center;"><?php echo $users?></textarea>
        </td>
    </tr>
    <tr>
        <td style="width: 537; border-style: solid;border-width: 1px;text-align: left; height: 39px; font-size: 14pt;">
        <textarea id="txtt"  name="txt" style="width: 581px; height: 79px; font-family: 'times New Roman', Times, serif; font-size: 12pt"></textarea></td>
        <td style="border-style: solid;border-width: 1px; height: 39px;padding-left: 8px; width: 143px; text-align: center;">
        <?php $fi = new FilesystemIterator (__DIR__ . "/$room"); printf("/%d Votes to Terminate", iterator_count($fi)); ?></td>
    </tr>
    <script>
var input = document.getElementById("txtt");
input.addEventListener("keyup", function(event) {
  if (event.keyCode === 13) {
   event.preventDefault();
   document.getElementById("send").click();
  }
});
</script>
</table>
<input id="send" name="Send" style="color: transparent; background-color: transparent; border-color: transparent; cursor: default;" type="submit" value="">
</form>
<?php
}else {
?>
<form method="GET" action="">
<table style="border: 1px solid #000000;width: 452px" align="center">
    <tr>
        <td style="font-family: 'Times New Roman', Times, serif;font-size: 17pt;text-align: left; width: 432px; color: #2214B9;;border-style: solid;border-width: 1px;">Name:</td>
        <td style="border-style: solid; border-width: 1px; font-family: 'Times New Roman', Times, serif; font-size: 17pt; text-align: left; color: #2214B9; width: 430px;">
        <input name="uname" style="font-size: medium; width: 260px; color: #B01919;"></td>
    </tr>
    <tr>
        <td style="font-family: 'Times New Roman', Times, serif;font-size: 17pt;text-align: left; width: 432px; color: #2214B9;border-style: solid;border-width: 1px;">Select Room:</td>
        <td style="border-style: solid; border-width: 1px; font-family: 'Times New Roman', Times, serif; font-size: 17pt; text-align: left; color: #2214B9; width: 430px;">
        <select name="rname" style="width: 260px; font-size: medium; color: #B01919;">
        <option selected="">Room 1</option>
        <option>Room 2</option>
        <option>Room 3</option>
        </select></td>
    </tr>
    <tr>
        <td style="font-family: 'Times New Roman', Times, serif;font-size: 17pt;text-align: center; color: #2214B9; border-left-style: solid; border-left-width: 1px; border-right-style: none; border-right-width: medium; border-top-style: solid; border-top-width: 1px; border-bottom-style: solid; border-bottom-width: 1px; padding-top:10px;padding-bottom:10px" colspan="2">
        <input name="enSubmit" style="width: 118px; height: 63px; font-size: 30pt; font-family: 'Times New Roman', Times, serif; color: #19B024;" type="submit" value="Enter"></td>
    </tr>
</table>
</form>
<?php
}
?>
<script>
el=document.myform.txtt
    if (typeof el.selectionStart == "number") {
        el.selectionStart = el.selectionEnd = el.value.length;
    } else if (typeof el.createTextRange != "undefined") {
        el.focus();
        var range = el.createTextRange();
        range.collapse(false);
        range.select();
    }</script>
</body>
<?php

?>