PHP的消息通信机制测试实例


            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：





<?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 Messages

for ($i=0;$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);

   }

  }

 }

}

?>







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