Asterisk AMI hangup event reader

<?php
require("setting.php");



$socket = fsockopen($host,"5038", $errno, $errstr,10);
      if (!$socket){
        echo "$errstr ($errno)\n";
        }else{
            fputs($socket, "Action: Login\r\n");
            fputs($socket, "UserName: $username\r\n");
            fputs($socket, "Secret: $secret\r\n\r\n");
            fputs($socket, "Action: WaitEvent\r\n");
            fputs($socket, "Action: Logoff\r\n\r\n");

   while(!feof($socket)){

  $result=fread($socket,5000);

if(stristr($result,'SoftHangupRequest')){

echo  $result;

break;


}

}

}

fclose($socket);

?>
http://www.ibm.com/developerworks/library/os-php-readfiles/