_stripEOL(fgets($socket, 4096)) == "[TS]")) {
			return true;
		} else {
			return false;
		}
	}
	
	// Closes the connection to the Teamspeak server
	function _closeConnection($socket) {
		fputs($socket, "quit\n");
		fclose($socket);
	}
	
	// Returns the part of evalString until a tab (or the end of a string) and deletes the
	// returned part from evalString (including the possible tab that follows)
	function _stripPartFromString(&$evalString) {
		$pos = strpos($evalString, "\t");
		if(is_integer($pos)) {
			$result = substr($evalString, 0, $pos);
			$evalString = substr($evalString, $pos + 1);
		} else {
			$result = $evalString;
			$evalString = "";
		}
		return $result;
	}
	
	// Removes the surrounding quotes from evalString and returns the result
	function _stripQuotes($evalString) {
		if(strpos($evalString, '"') == 0) $evalString = substr($evalString, 1, strlen($evalString) - 1);
		if(strrpos($evalString, '"') == strlen($evalString) - 1) $evalString = substr($evalString, 0, strlen($evalString) - 1);
		return $evalString;
	}
	
	// Request, read and parse the server info:
	function _getServerInfo($socket) {
		fputs($socket, "si\n");
		$result = array();
		do {
			$buffer = $this->_stripEOL(fgets($socket, 4096));
			if (($buffer != "OK") && (strtoupper(substr($buffer, 0, 5)) != "ERROR")) {
				$pos = strpos($buffer, '=');
				if ($pos !== False) {
					$result[substr($buffer, 0, $pos)] = substr($buffer, $pos + 1);
				}
			}
		} while (($buffer != "OK") && (strtoupper(substr($buffer, 0, 5)) != "ERROR") && (!feof($socket)));
		return $result;
	}
	
	function _setPlayerDisplayImage(&$playerInfo) {
		// Determine the right userpicture:
		if (($playerInfo["attribute"] & 8) == 8) { $playerImage = "away"; }
		else if (($playerInfo["attribute"] & 32) == 32) { $playerImage = "mutespeakers"; }
		else if (($playerInfo["attribute"] & 16) == 16) { $playerImage = "mutemicrophone"; }
		else if (($playerInfo["attribute"] & 1) == 1) { $playerImage = "channelcommander"; }
		else { $playerImage = "normal"; }
		$playerInfo["displayimage"] = $playerImage;
	}
	
	function _setPlayerDisplayName(&$playerInfo) {
		// Determine the player status (U = Unregistered, R = Registered, SA = Server Admin,
		// CA = Channel Admin, AO = Auto-Operator, AV = Auto-Voice, O = Operator, V = Voice)
		if (($playerInfo["userstatus"] & 4) == 4) { $playerstatus = "R"; } else { $playerstatus = 'U'; }
		if (($playerInfo["userstatus"] & 1) == 1) { $playerstatus .= " SA"; }
		if (($playerInfo["privileg"] & 1) == 1) { $playerstatus .= " CA"; }
		if (($playerInfo["privileg"] & 8) == 8) { $playerstatus .= " AO"; }
		if (($playerInfo["privileg"] & 16) == 16) { $playerstatus .= " AV"; }
		if (($playerInfo["privileg"] & 2) == 2) { $playerstatus .= " O"; }
		if (($playerInfo["privileg"] & 4) == 4) { $playerstatus .= " V"; }
		if (($playerInfo["attribute"] & 64) == 64) { $playerstatus .= " Rec"; }
		
		// Determine the player attributes to be listed behind the player status (WV = Want Voice)
		if (($playerInfo["attribute"] & 2) == 2) { $playerattributes = ' WV'; } else { $playerattributes = ''; }
		
		$playerInfo["displayname"] = $playerInfo["playername"] . " (" . $playerstatus . ")" . $playerattributes;
	}
	
	function _getPlayerList($socket) {
		// Request, read and parse the player list
		fputs($socket, "pl\n");
		$buffer = $this->_stripEOL(fgets($socket, 4096));
		$result = array();
		if (strtoupper(substr($buffer, 0, 5)) == "ERROR") { return $result; }
		do {
			$buffer = $this->_stripEOL(fgets($socket, 4096));
			if (($buffer != "OK") && (strtoupper(substr($buffer, 0, 5)) != "ERROR")) {
				$playerid = $this->_stripPartFromString($buffer);
				$result[$playerid] = array(
					"playerid" => $playerid,
					"channelid" => $this->_stripPartFromString($buffer),
					"receivedpackets" => $this->_stripPartFromString($buffer),
					"receivedbytes" => $this->_stripPartFromString($buffer),
					"sentpackets" => $this->_stripPartFromString($buffer),
					"sentbytes" => $this->_stripPartFromString($buffer),
					"paketlost" => $this->_stripPartFromString($buffer) / 100,
					"pingtime" => $this->_stripPartFromString($buffer),
					"totaltime" => $this->_stripPartFromString($buffer),
					"idletime" => $this->_stripPartFromString($buffer),
					"privileg" => $this->_stripPartFromString($buffer),
					"userstatus" => $this->_stripPartFromString($buffer),
					"attribute" => $this->_stripPartFromString($buffer),
					"ip" => $this->_stripPartFromString($buffer),
					"playername" => $this->_stripQuotes($this->_stripPartFromString($buffer)),
					"loginname" => $this->_stripQuotes($this->_stripPartFromString($buffer))
				);
				$this->_setPlayerDisplayImage($result[$playerid]);
				$this->_setPlayerDisplayName($result[$playerid]);
			}
		} while (($buffer != "OK") && (strtoupper(substr($buffer, 0, 5)) != "ERROR") && (!feof($socket)));
		return $result;
	}
	
	function _getLimitedPlayerList($socket, $channelList) {
		$playerList = $this->_getPlayerList($socket);
		$result = array();
		foreach($playerList as $playerInfo) {
			foreach($channelList as $channelInfo) {
				if ($playerInfo["channelid"] == $channelInfo["channelid"]) {
					$result[$playerInfo["playerid"]] = $playerInfo;
				}
			}
		}
		return $result;
	}
	
	function _setChannelDisplayName(&$channelInfo) {
		if ($channelInfo["parent"] != -1) {
			$channelInfo["displayname"] = $channelInfo["channelname"];
		} else {
			// Determine the channel status (U = Unregisterd, R = Registered, M = Moderated,
			// P = Passworded, S = Sub-channels, D = Default).
			if (($channelInfo["flags"] & 1) == 1) { $channelstatus = 'U'; } else { $channelstatus = 'R'; }
			if (($channelInfo["flags"] & 2) == 2) { $channelstatus .= 'M'; }
			if (($channelInfo["flags"] & 4) == 4) { $channelstatus .= 'P'; }
			if (($channelInfo["flags"] & 8) == 8) { $channelstatus .= 'S'; }
			if (($channelInfo["flags"] & 16) == 16) { $channelstatus .= 'D'; }
			$channelInfo["displayname"] = $channelInfo["channelname"] . " (" . $channelstatus . ")";
		}
	}
	
	function _getChannelList($socket) {
		// Request, read and parse the channel list
		fputs($socket, "cl\n");
		$buffer = $this->_stripEOL(fgets($socket, 4096));
		$result = array();
		if (strtoupper(substr($buffer, 0, 5)) == "ERROR") { return $result; }
		do {
			$buffer = $this->_stripEOL(fgets($socket, 4096));
			if (($buffer != "OK") && (strtoupper(substr($buffer, 0, 5)) != "ERROR")) {
				$channelid = $this->_stripPartFromString($buffer);
				$result[$channelid] = array(
					"channelid" => $channelid,
					"codec" => $this->_stripPartFromString($buffer),
					"parent" => $this->_stripPartFromString($buffer),
					"order" => $this->_stripPartFromString($buffer),
					"maxplayers" => $this->_stripPartFromString($buffer),
					"channelname" => $this->_stripQuotes($this->_stripPartFromString($buffer)),
					"flags" => $this->_stripPartFromString($buffer),
					"password" => $this->_stripPartFromString($buffer),
					"topic" => $this->_stripQuotes($this->_stripPartFromString($buffer))
				);
				$this->_setChannelDisplayName($result[$channelid]);
			}
		} while (($buffer != "OK") && (strtoupper(substr($buffer, 0, 5)) != "ERROR") && (!feof($socket)));
		return $result;
	}
	
	function _getLimitedChannelList($socket, $limitChannel) {
		$channelList = $this->_getChannelList($socket);
		$result = array();
		foreach($channelList as $channelInfo) {
			if ($channelInfo["parent"] == -1) {
				if ($channelInfo["channelname"] == $limitChannel) {
					$result[$channelInfo["channelid"]] = $channelInfo;
					foreach($channelList as $subChannelInfo) {
						if ($subChannelInfo["parent"] == $channelInfo["channelid"]) {
							$result[$subChannelInfo["channelid"]] = $subChannelInfo;
						}
					}
				}
			}
		}
		return $result;
	}
	
	function _selectServer($socket, $port) {
		// Request the server to select the server which is hosted on  the port set in serverUDPPort
		fputs($socket, "sel ".$port . "\n");
		
		// Read server response on request to select a server
		return ($this->_stripEOL(fgets($socket, 4096)) == "OK");
	}
	
	// Queries the Teamspeak server
	function queryTeamspeakServerEx($settings) {
		$result = array();
		
		// Try to establish a connection to the teamspeak server
		if (! $this->_openConnection($socket, $settings["serveraddress"], $settings["serverqueryport"], 0.3)) {
			$result["queryerror"] = 1;
		} else if (! $this->_selectServer($socket, $settings["serverudpport"])) {
			$result["queryerror"] = 2;
			$this->_closeConnection($socket);
		} else {
			$result["queryerror"] = 0;
			$result["serverinfo"] = $this->_getServerInfo($socket);
			$result["channellist"] = ($settings["limitchannel"] == "") ? $this->_getChannelList($socket) : $this->_getLimitedChannelList($socket, $settings["limitchannel"]);
			$result["playerlist"] = ($settings["limitchannel"] == "") ? $this->_getPlayerList($socket) : $this->_getLimitedPlayerList($socket, $result["channellist"]);
			$this->_closeConnection($socket);
		}
		return $result;
	}
	
	function queryTeamspeakServer($serverAddress, $serverUDPPort, $serverQueryPort) {
		$settings = $this->getDefaultSettings();
		$settings["serveraddress"] = $serverAddress;
		$settings["serverudpport"] = $serverUDPPort;
		$settings["serverqueryport"] = $serverQueryPort;
		return $this->queryTeamspeakServerEx($settings);
	}
	
	function _orderAlphaGetString($string) {
		$lowerstring = strtolower($string);
		$result = "";
		for ($i = 0; $i < strlen($lowerstring); $i++) {
			if (strpos("0123456789abcdefghijklmnopqrstuvwxyz", substr($lowerstring, $i, 1)) !== false) {
				$result .= substr($lowerstring, $i, 1);
			}
		}
		return $result;
	}
	
	function _orderAlpha($str1, $str2) {
		return strcmp($this->_orderAlphaGetString($str1), $this->_orderAlphaGetString($str2));
	}
	
	function _compareChannel($a, $b) {
		if ($a["order"] != $b["order"]) { return ($a["order"] < $b["order"]) ? -1 : 1; }
		else { return $this->_orderAlpha($a["displayname"], $b["displayname"]); }
	}
	
	function _comparePlayer($a, $b) {
		// Determine userlevel (0 = Not server admin, 1 = Server admin)
		$userlevela = $a["userstatus"] & 1;
		$userlevelb = $b["userstatus"] & 1;
		if ($userlevela != $userlevelb) { return ($userlevela < $userlevelb) ? 1 : -1; }
		else { return $this->_orderAlpha($a["displayname"], $b["displayname"]); }
	}
	
	function sortServerInfo(&$serverInfo) {
		usort($serverInfo["channellist"], array($this, "_compareChannel"));
		usort($serverInfo["playerlist"], array($this, "_comparePlayer"));
	}
	
	function _formatTime($totaltime) {
		$hours = floor($totaltime / 3600);
		$minutes = floor(($totaltime % 3600) / 60);
		return (($hours < 10) ? "0" : "") . $hours . ":" . (($minutes < 10) ? "0" : "") . $minutes;
	}
	
	// Returns the codec name
	function _getCodecName($codec) {
		if ($codec == 0) { return "CELP 5.1 Kbit"; }
		else if ($codec == 1) { return "CELP 6.3 Kbit"; }
		else if ($codec == 2) { return "GSM 14.8 Kbit"; }
		else if ($codec == 3) { return "GSM 16.4 Kbit"; }
		else if ($codec == 4) { return "CELP Windows 5.2 Kbit"; }
		else if ($codec == 5) { return "Speex 3.4 Kbit"; }
		else if ($codec == 6) { return "Speex 5.2 Kbit"; }
		else if ($codec == 7) { return "Speex 7.2 Kbit"; }
		else if ($codec == 8) { return "Speex 9.3 Kbit"; }
		else if ($codec == 9) { return "Speex 12.3 Kbit"; }
		else if ($codec == 10) { return "Speex 16.3 Kbit"; }
		else if ($codec == 11) { return "Speex 19.5 Kbit"; }
		else if ($codec == 12) { return "Speex 25.9 Kbit"; }
		else { return "Unknown (" . $codec . ")"; }
	}
	
	function getDefaultSettings() {
		$result = array();
		$result["serveraddress"] = "";
		$result["serverudpport"] = 8767;
		$result["serverqueryport"] = 51234;
		$result["limitchannel"] = "";
		$result["forbiddennicknamechars"] = "()[]{}";
		return $result;
	}
	
	// Main function (queries, sorts and displays the teamspeak serverinfo). Its code is not
	// very readable... well what shall I say about it... it was hard to write so it should
	// be hard to read >:)
	function displayTeamspeakEx($settings) {
		$serverInfo = $this->queryTeamspeakServerEx($settings);
		
		echo("
\n");
		if ($serverInfo["queryerror"] != 0) {
			$popupInfo = "Server address: " . $settings["serveraddress"] . (($settings["serverudpport"] != 8767) ? (":" . $settings["serverudpport"]): "");
			if ($serverInfo["queryerror"] == 1) {
				$popupInfo .= ", Error: could not connect to query port";
			} else {
				$popupInfo .= ", Error: no server running on port " . $settings["serverudpport"];
			}
			echo("
| ");
			echo("  ");
			echo(" | ");
			echo("Server offline");
			echo(" | 
\n");
		} else {
			$this->sortServerInfo($serverInfo);
			
			// Generate javascript for teamspeak hyperlinks
			$jsTeamspeakId = md5($settings["serveraddress"] . ":" . $settings["serverudpport"]);
			echo("\n");
			
			$popupInfo = "Server address: " . $settings["serveraddress"] . (($settings["serverudpport"] != 8767) ? (":" . $settings["serverudpport"]): "") . ", Max players: " . $serverInfo["serverinfo"]["server_maxusers"] . ", Uptime: " . $this->_formatTime($serverInfo["serverinfo"]["server_uptime"]);
			
			// Print the topmost element of the teamspeak tree
			echo("
\n");
			
			// Count the number of channels to be listed:
			$currentchannels = 0;
			foreach($serverInfo["channellist"] as $channelInfo) {
				if ($channelInfo["parent"] == -1) {
					$currentchannels++;
				}
			}
			
			// Initialize the channelcounter to zero
			$counter = 0;
			
			// Loop through all channels:
			foreach($serverInfo["channellist"] as $channelInfo) { if ($channelInfo["parent"] == -1) {
				
				// determine number of players in channel
				$currentplayers = 0;
				foreach($serverInfo["playerlist"] as $playerInfo) {
					if($playerInfo["channelid"] == $channelInfo["channelid"]) $currentplayers++;
				}
				
				// Count the number of channels to be listed:
				$currentplayersandsubchannels = $currentplayers;
				foreach($serverInfo["channellist"] as $subchannelInfo) {
					if ($subchannelInfo["parent"] == $channelInfo["channelid"]) {
						$currentplayersandsubchannels++;
					}
				}
				
				$popupInfo = "Max players: " . $channelInfo["maxplayers"] . ", Codec: " . $this->_getCodecName($channelInfo["codec"]);
				if ($channelInfo["topic"] != "") { $popupInfo = $popupInfo . ", Topic: " . $channelInfo["topic"]; }
				
				// Display channel:
				echo("
\n");
				
				// Initialize the playercounter for this channel to zero
				$counter_playerandsubchannels = 0;
				
				// Loop through all players in the current channel:
				foreach($serverInfo["playerlist"] as $playerInfo) {
					
					// Is the current player in the current channel?
					if ($playerInfo["channelid"] == $channelInfo["channelid"]) {
						
						$popupInfo = "Time online: " . $this->_formatTime($playerInfo["totaltime"]) . ", Time idle: " . $this->_formatTime($playerInfo["idletime"]) . ", Ping: " . $playerInfo["pingtime"] . "ms";
						
						// Display player:
						echo("
| ");
						echo("  ");
						echo("  ");
						echo("  ");
						echo(" | ");
						echo(str_replace(" ", " ", htmlspecialchars($playerInfo["displayname"])));
						echo(" | 
\n");
						
						// Increase the player counter:
						$counter_playerandsubchannels++;
					}
				}
				
				// Loop through all channels:
				foreach($serverInfo["channellist"] as $subchannelInfo) { if ($subchannelInfo["parent"] == $channelInfo["channelid"]) { 
					// determine number of players in channel
					$currentplayers = 0;
					foreach($serverInfo["playerlist"] as $playerInfo) {
						if($playerInfo["channelid"] == $subchannelInfo["channelid"]) $currentplayers++;
					}
					
					$popupInfo = "Max players: " . $subchannelInfo["maxplayers"] . ", Codec: " . $this->_getCodecName($subchannelInfo["codec"]);
					if ($subchannelInfo["topic"] != "") { $popupInfo = $popupInfo . ", Topic: " . $subchannelInfo["topic"]; }
					
					// Display channel:
					echo("
\n");
					
					// Initialize the playercounter for this channel to zero
					$counter_player = 0;
					
					// Loop through all players in the current channel:
					foreach($serverInfo["playerlist"] as $playerInfo) {
						
						// Is the current player in the current channel?
						if ($playerInfo["channelid"] == $subchannelInfo["channelid"]) {
							
							$popupInfo = "Time online: " . $this->_formatTime($playerInfo["totaltime"]) . ", Time idle: " . $this->_formatTime($playerInfo["idletime"]) . ", Ping: " . $playerInfo["pingtime"] . "ms";
							
							// Display player:
							echo("
| ");
							echo("  ");
							echo("  ");
							echo("  ");
							echo("  ");
							echo(" | ");
							echo(str_replace(" ", " ", htmlspecialchars($playerInfo["displayname"])));
							echo(" | 
\n");
							
							// Increase the player counter:
							$counter_player++;
						}
					}
					
					// Increase the channelcounter
					$counter_playerandsubchannels++;
				} }
				
				// Increase the channelcounter
				$counter++;
			} }
		}
		echo("