本文实例讲述了PHP的消息通信机制。分享给大家供大家参考，具体如下：
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<?php error_reporting(E_ALL&~E_WARNING&~E_NOTICE);/** * Example for sending and receiving Messages via the System V Message Queue * * To try this script run it synchron/asynchron twice times. One time with ?type=send and one time with ?type=receive * * @author Thomas Eimers - Mehrkanal GmbH * * This document is distributed in the hope that it will be useful, but without any warranty; * without even the implied warranty of merchantability or fitness for a particular purpose. */ob_implicit_flush(1);header('Content-Type: text/plain; charset=ISO-8859-1');echo "Start...\n";// Create System V Message Queue. Integer value is the number of the Queue//$queue = msg_get_queue(100379);$mesg_key = ftok(__FILE__, 'm');$mesg_id = msg_get_queue($mesg_key, 0666);$queue = $mesg_id;// Sendoptions$serialize_needed=false; // Must the transfer data be serialized ?$block_send=false; // Block if Message could not be send (Queue full...) (true/false)$msgtype_send=1; // Any Integer above 0. It signeds every Message. So you could handle multible message // type in one Queue.// Receiveoptions$msgtype_receive=1; // Whiche type of Message we want to receive ? (Here, the type is the same as the type we send, // but if you set this to 0 you receive the next Message in the Queue with any type.$maxsize=100; // How long is the maximal data you like to receive.$option_receive=MSG_IPC_NOWAIT; // If there are no messages of the wanted type in the Queue continue without wating. // If is set to NULL wait for a Message.// Send or receive 20 Messagesfor ($i=0;$i<20;$i++) { sleep(1); ob_flush(); flush(); $message='Hello, This is Flandy,now is '.date("H:i:s",time()); // Transfering Data // This one sends if (isset($_GET['type'])&&$_GET['type']=='send') { if(msg_send($queue,$msgtype_send, $message,$serialize_needed, $block_send,$err)===true) { echo "The ".$i." Message has been sent, the messge is ".$message."\n"; } else { var_dump($err); } // This one received } else { $queue_status=msg_stat_queue($queue); echo 'Get Messages in the queue: '.$queue_status['msg_qnum']."\n"; print_r($queue_status); echo "\n"; if ($queue_status['msg_qnum']>0) { if (msg_receive($queue,$msgtype_receive ,$msgtype_erhalten,$maxsize,$daten,$serialize_needed, $option_receive, $err)===true) { echo "Received data:".$daten."\n"; } else { var_dump($err); } } }}?> |
希望本文所述对大家PHP程序设计有所帮助。
