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);

?>

 

 

一： 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);

?>