A very simple socket client PHP class

PHP 5, you need to open the socket extension

//socke operation class
class Socket {
 private $host;//the host connected to the socket
 private $port;//the port number of the socket
 private $error=array() ;
 private $socket=null;//The connection identifier of the socket
 private $queryStr="";//The data sent
 public function __construct($host,$port) {
 if(!extension_loaded("sockets")) {
 exit("Please open the socket extension");
 }
 if(empty($host)) exit("Please enter the target address");
 if(empty($port)) exit("Please enter a valid port No.");
 $this->host=$host;
 $this->port=$port;
 $this->CreateSocket();//Create connection
 }

 //Create socket
 private function CreateSocket(){
 !$this->socket&&$this->socket=socket_create(AF_INET, SOCK_STREAM, SOL_TCP);//Create socket
 $r=@socket_connect($this->socket,$this- >host,$this->port);
 if($r){
 return $r;
 }else{
 $this->error[]=socket_last_error($this->socket);
 return false;
 }
 }

 //Write data to the socket server and read
 public function wr($contents){
 $this->queryStr="";
 $this->queryStr=$contents;
 !$this->socket&&$this->CreateSocket();
 $contents=$this->fliterSendData($contents);
 $result=socket_write($this->socket,$contents,strlen( $contents));
 if(!intval($result)){
 $this->error[]=socket_last_error($this->socket);
 return false;
 }
 $response=socket_read($this ->socket,12048);
 if(false===$response){
 $this->error[]=socket_last_error($this->socket);
 return false;
 }
 return $response;
 }


 //Filter the sent data
 private function filterSendData($contents){
 //Process the written data
 return $contents;
 }


 //All error messages
 public function getError(){
 return $this->error;
 }

 //Last error message
 public function getLastError(){
 return $this->error(count($this->error));
 }
 //Get the last message sent
 public function getLastMsg(){
 return $this->queryStr;
 }

 public function getHost(){
 return $this->host;
 }

 public function getPort(){
 return $this->port;
 }

 //Close the socket connection
 private function close(){
 $this->socket&&socket_close($this->socket);//Close Connection
 $this->socket=null;//Connection resource initialization
 }

 public function __destruct(){
 $this->close();
 }
}

Very simple, socket, PHP