php socket通信(tcp/udp)

注意　

　　1.在socket_bind的时候ip地址不能真回环地址如127.0.0.1

　　2.server.php后台跑起来的时候　nohup php server.php > /var/tmp/a.log 2>&1 &

一： udp 方式

1) server.php

<?php//error_reporting( E_ALL );set_time_limit( 0 );ob_implicit_flush();$socket = socket_create( AF_INET, SOCK_DGRAM, SOL_UDP );if ( $socket === false ) {echo 'socket_create() failed:reason:' . socket_strerror( socket_last_error() ) . '\n';}$ok = socket_bind( $socket, '202.85.218.133', 11109 );if ( $ok === false ) {echo 'socket_bind() failed:reason:' . socket_strerror( socket_last_error( $socket ) );}while ( true ) {$from = '';$port = 0;socket_recvfrom( $socket, $buf,1024, 0, $from, $port );echo $buf;usleep( 1000 );}?>

2) client.php

<?php$sock = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);$msg = 'hello';$len = strlen($msg);socket_sendto($sock, $msg, $len, 0, '202.85.218.133', 11109);socket_close($sock);?>

二： TCP 方式

1)server.php

<?php//error_reporting( E_ALL );set_time_limit( 0 );ob_implicit_flush();$socket = socket_create( AF_INET, SOCK_STREAM, SOL_TCP );socket_bind( $socket, '192.168.2.143', 11109 );socket_listen($socket);$acpt=socket_accept($socket);echo 'Acpt!\n';while ( $acpt ) {$words=fgets(STDIN);socket_write($acpt,$words);$hear=socket_read($acpt,1024);echo $hear;if('bye\r\n'==$hear){socket_shutdown($acpt);break;}usleep( 1000 );}socket_close($socket)?>

2) client.php

<?php$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);$con=socket_connect($socket,'192.168.2.143',11109);if(!$con){socket_close($socket);exit;}echo 'Link\n';while($con){$hear=socket_read($socket,1024);echo $hear;$words=fgets(STDIN);socket_write($socket,$words);if($words=='bye\r\n'){break;}}socket_shutdown($socket);socket_close($sock);?>