PHP Serverview - Grafik enthällt Fehler

<?php
header("Content-Type: image/jpg");
$ip = '127.0.0.1';
$port = 7777;
require
$server = new gtasampapi($ip,$port);
$infos = $server->getInfo();


$im = imagecreatefromjpeg("background.jpg");


$tc = imagecolorallocate ($im, 0, 0, 0);


if(!$server->isOnline())
{
$text = 'Server offline';
imageString($im, 2, 5, 3, $text, $tc);
ImageJPEG($im);
imagedestroy ($im);
}
$text = $infos['hostname'] .' ( '. $ip .':'. $port .' )';
imageString($im, 2, 5, 3, $text, $tc);


$text = 'Version: '. $infos['gamemode'];
imageString($im, 2, 25, 3, $text, $tc);


$text = 'Spieler: '. $infos['players'] .' / '. $infos['maxplayers'];
imageString($im, 2, 45, 3, $text, $tc);
if(!is_array($players) || count($players) == 0)
{
  	$text = 'Keiner online';
  	imageString($im, 2, 65, 3, $text, $tc);
}
else
{
  	$i = 45;
  	foreach($players as $value) //for($i = 0; $i < count($players);$i++)
	   	 {
    	$i += 20;
	   		 $text = $value['nickname'] .' ( Level: '. $value['Score'] .' )';
    	imageString($im, 2, $i, 3, $text, $tc);
	   	 }
}
ImageJPEG($im);
imagedestroy ($im);


class gtasampapi
{
	private $rSocket = false;
	private $aServer = array();
	public function __construct($sServer, $iPort = 7777)
	{
	    $this->aServer[0] = $sServer;
	    $this->aServer[1] = $iPort;
	    $this->rSocket = fsockopen('udp://'.$this->aServer[0], $this->aServer[1], $iError, $sError, 2);
	    if(!$this->rSocket)
	    {
	   	 $this->aServer[4] = false;
	   	 return;
	    }
	    socket_set_timeout($this->rSocket, 2);
	    $sPacket = 'SAMP';
	    $sPacket .= chr(strtok($this->aServer[0], '.'));
	    $sPacket .= chr(strtok('.'));
	    $sPacket .= chr(strtok('.'));
	    $sPacket .= chr(strtok('.'));
	    $sPacket .= chr($this->aServer[1] & 0xFF);
	    $sPacket .= chr($this->aServer[1] >> 8 & 0xFF);
	    $sPacket .= 'p4150';

	    fwrite($this->rSocket, $sPacket);

	    if(fread($this->rSocket, 15))
	    {
	   	 $this->aServer[4] = true;
	    }
	    else
	    {
	   	 $this->aServer[4] = false;
	    }
	}
	public function __destruct()
	{
	    @fclose($this->rSocket);
	}
	public function isOnline()
	{
	    return isset($this->aServer[4]) ? $this->aServer[4] : false;
	}
	public function getInfo()
	{
	    @fwrite($this->rSocket, $this->createPacket('i'));

	    fread($this->rSocket, 11);

	    $aDetails['password'] = (integer) ord(fread($this->rSocket, 1));

	    $aDetails['players'] = (integer) $this->toInteger(fread($this->rSocket, 2));

	    $aDetails['maxplayers'] = (integer) $this->toInteger(fread($this->rSocket, 2));

	    $iStrlen = ord(fread($this->rSocket, 4));
	    if(!$iStrlen) return -1;

	    $aDetails['hostname'] = (string) fread($this->rSocket, $iStrlen);

	    $iStrlen = ord(fread($this->rSocket, 4));
	    $aDetails['gamemode'] = (string) fread($this->rSocket, $iStrlen);

	    $iStrlen = ord(fread($this->rSocket, 4));
	    $aDetails['mapname'] = (string) fread($this->rSocket, $iStrlen);

	    return $aDetails;
	}
	public function getBasicPlayers()
	{
	    @fwrite($this->rSocket, $this->createPacket('c'));
	    fread($this->rSocket, 11);

	    $iPlayerCount = ord(fread($this->rSocket, 2));
	    $aDetails = array();

	    if($iPlayerCount > 0)
	    {
	   	 for($iIndex = 0; $iIndex < $iPlayerCount; ++$iIndex)
	   	 {
	   		 $iStrlen = ord(fread($this->rSocket, 1));
	   		 $aDetails[] = array
	   		 (
	   			 "nickname" => (string) fread($this->rSocket, $iStrlen),
	   			 "score" => (integer) $this->toInteger(fread($this->rSocket, 4)),
	   		 );
	   	 }
	    }

	    return $aDetails;
	}
	public function getDetailedPlayers()
	{
	    @fwrite($this->rSocket, $this->createPacket('d'));
	    fread($this->rSocket, 11);

	    $iPlayerCount = ord(fread($this->rSocket, 2));
	    $aDetails = array();

	    for($iIndex = 0; $iIndex < $iPlayerCount; ++$iIndex)
	    {
	   	 $aPlayer['playerid'] = (integer) ord(fread($this->rSocket, 1));

	   	 $iStrlen = ord(fread($this->rSocket, 1));
	   	 $aPlayer['nickname'] = (string) fread($this->rSocket, $iStrlen);

	   	 $aPlayer['score'] = (integer) $this->toInteger(fread($this->rSocket, 4));
	   	 $aPlayer['ping'] = (integer) $this->toInteger(fread($this->rSocket, 4));

	   	 $aDetails[] = $aPlayer;
	   	 unset($aPlayer);
	    }

	    return $aDetails;
	}
	public function getRules()
	{
	    @fwrite($this->rSocket, $this->createPacket('r'));
	    fread($this->rSocket, 11);

	    $iRuleCount = ord(fread($this->rSocket, 2));
		 $aReturn = array();

	    for($iIndex = 0; $iIndex < $iRuleCount; ++$iIndex)
	    {
	   	 $iStrlen = ord(fread($this->rSocket, 1));
	   	 $sRulename = (string) fread($this->rSocket, $iStrlen);

	   	 $iStrlen = ord(fread($this->rSocket, 1));
	   	 $aDetails[$sRulename] = (string) fread($this->rSocket, $iStrlen);
	    }

	    return $aDetails;
	}
	private function toInteger($sData)
	{
		 $iInteger = 0;
		 $iInteger += (ord($sData[0]));
 
		 if(isset($sData[1]))
		 {
			 $iInteger += (ord($sData[1]) << 8);
		 }

		 if(isset($sData[2]))
		 {
			 $iInteger += (ord($sData[2]) << 16);
		 }

		 if(isset($sData[3]))
		 {
			 $iInteger += (ord($sData[3]) << 24);
		 }

		 if($iInteger >= 4294967294)
	    {
			 $iInteger -= 4294967296;
	    }

		 return $iInteger;
	}
	private function createPacket($sPayload)
	{
	    $sPacket = 'SAMP';
	    $sPacket .= chr(strtok($this->aServer[0], '.'));
	    $sPacket .= chr(strtok('.'));
	    $sPacket .= chr(strtok('.'));
	    $sPacket .= chr(strtok('.'));
	    $sPacket .= chr($this->aServer[1] & 0xFF);
	    $sPacket .= chr($this->aServer[1] >> 8 & 0xFF);
	    $sPacket .= $sPayload;

	    return $sPacket;
	}
}
?>