php socket通信(TCP/UDP)實例分析

【注】
1.在socket_bind的時候ip地址不能真迴環地址如127.0.0.1。
2.server.php後臺跑起來的時候打印日誌：nohup php server.php > /var/tmp/a.log 2>&1 &。

UDP 方式通信

UDP服務端 server.php

<?php
/**
*UDP服務端
*/
//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, '192.168.1.222', 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 );
}
?>

UDP客戶端 client.php

<?php
$sock = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);
$msg = 'hello';
$len = strlen($msg);
socket_sendto($sock, $msg, $len, 0, '192.168.1.222', 11109);
socket_close($sock);
?>

TCP 方式通信

TCP服務端 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( $socket, '192.168.1.222', 11109 );
socket_listen($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)
?>

TCP客戶端 client.php

<?php
$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
$con=socket_connect($socket,'192.168.1.222',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);
?>

內容借鑑而來，感覺還可以用。