PHP socket client and server-side application Example _php tutorial

Often friends will be full of doubts about the application of the PHP socket, this article is an example of the code to explain, I hope to beginners PHP friends play a little help role

The specific code is as follows:

1. Server-side code:

<?phpclass socketserver{Private $_port= ' 9000 ';  Private $_address= ' 127.0.0.1 ';  Private $_client_socket_list=array ();  Public Function __set ($name, $val) {$this---> $name = $val;  } Private Function _showerror ($error) {exit ($error); }/** * Starts the socket server-side listening port */Public Function start () {//Create port if ($sock = Socket_create (Af_inet, Sock_stre AM, sol_tcp)) {= = False) {$this->_showerror ("Socket_create () Failed:reason:".    Socket_strerror (Socket_last_error ())); }//Bind if (Socket_bind ($sock, $this->_address, $this->_port) = = = = False) {$this->_showerror ("Socke T_bind () Failed:reason: ".    Socket_strerror (Socket_last_error ($sock))); }//Listen if (Socket_listen ($sock, 5) = = = False) {$this->_showerror ("Socket_bind () Failed:reason:".    Socket_strerror (Socket_last_error ($sock))); } do {//when there is a client connection if ($client _socket=socket_accept ($sock)) {$count = count ($this->_client_socket_list) + 1;        Add the new user to the client array $this->_client_socket_list[]= $client _socket;        echo "New connection:\r\n";//server-side output the number of clients currently connected echo "current connection:{$count}\r\n";        Accept the string passed by the client $msg = $this->read ($client _socket);        echo "client:{$msg}\r\n";        The server passes the value to the client $my _msg= "I am fine,think you\r\n";      $this->send ($client _socket, $my _msg);          }/** * This code is for your reference to determine if there is a client actively loses connection else{foreach ($this->_client_socket_list as $socket) { $len = Socket_recv ($socket, $buffer, 2048, 0); Accept the client information if the 0 delegate disconnects if ($len < 7) {//write here to connect the client Business}}} */}whi    Le (True);  /** * Send data to client */Public function Send ($client _socket, $str) {return socket_write ($client _socket, $str, strlen  ($STR)); }/** * accepts data from client */Public function read ($client _socket) {return Socket_read ($client _socket, 8192);//8192 actually represents the Accept the length, I use 819292 to denote the long onePoint, such a longer string can also be accepted, less than 8192 does not matter, will be automatically recognized}} $socket _server =new socketserver (); $socket _server->start ();//Start monitoring 

2. Client code:

<?phpclass socketserver{Private $_port= ' 9000 ';  Private $_address= ' 127.0.0.1 ';  Private $_client_socket_list=array ();  Public Function __set ($name, $val) {$this---> $name = $val;  } Private Function _showerror ($error) {exit ($error); }/** * Starts the socket server-side listening port */Public Function start () {//Create port if ($sock = Socket_create (Af_inet, Sock_stre AM, sol_tcp)) {= = False) {$this->_showerror ("Socket_create () Failed:reason:".    Socket_strerror (Socket_last_error ())); }//Bind if (Socket_bind ($sock, $this->_address, $this->_port) = = = = False) {$this->_showerror ("Socke T_bind () Failed:reason: ".    Socket_strerror (Socket_last_error ($sock))); }//Listen if (Socket_listen ($sock, 5) = = = False) {$this->_showerror ("Socket_bind () Failed:reason:".    Socket_strerror (Socket_last_error ($sock))); } do {//when there is a client connection if ($client _socket=socket_accept ($sock)) {$count = count ($this->_client_socket_list) + 1;        Add the new user to the client array $this->_client_socket_list[]= $client _socket;        echo "New connection:\r\n";//server-side output the number of clients currently connected echo "current connection:{$count}\r\n";        Accept the string passed by the client $msg = $this->read ($client _socket);        echo "client:{$msg}\r\n";        The server passes the value to the client $my _msg= "I am fine,think you\r\n";      $this->send ($client _socket, $my _msg);          }/** * This code is for your reference to determine if there is a client actively loses connection else{foreach ($this->_client_socket_list as $socket) { $len = Socket_recv ($socket, $buffer, 2048, 0); Accept the client information if the 0 delegate disconnects if ($len < 7) {//write here to connect the client Business}}} */}whi    Le (True);  /** * Send data to client */Public function Send ($client _socket, $str) {return socket_write ($client _socket, $str, strlen  ($STR)); }/** * accepts data from client */Public function read ($client _socket) {return Socket_read ($client _socket, 8192);//8192 actually represents the Accept the length, I use 819292 to denote the long onePoint, such a longer string can also be accepted, less than 8192 does not matter, will be automatically recognized}} $socket _server =new socketserver (); $socket _server->start ();//Start monitoring 

Note: server side use CLI mode to run, CGI mode will time out, this is the novice often like to make mistakes. So what is the CLI mode? Simple is to use the command line to execute, and do not use the browser open, otherwise it will time out!

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