msg_queue_exists

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

msg_queue_exists — Check whether a message queue exists

说明

msg_queue_exists(int $key): bool

Checks whether the message queue key exists.

参数

key: Queue key.

返回值

成功时返回 true，或者在失败时返回 false。

参见

msg_remove_queue() - Destroy a message queue
msg_receive() - Receive a message from a message queue
msg_stat_queue() - Returns information from the message queue data structure

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User Contributed Notes 1 note

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michael dot hajuu at gmail dot com ¶

13 years ago

A simple script for checking what message queues are in use on a [presumably new] server environment.



Run with php-cli



<?php

$k = 0;

while (true) {

  echo $key,"...\r";

  if (msg_queue_exists($key))

   echo "\r",$key,'::Exists',"\n";

   $key++;

}

?>

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