Last 5.3 release ever available: PHP 5.3.29 - 5.3 now EOL

msg_queue_exists

(PHP 5 >= 5.3.0)

msg_queue_existsCheck whether a message queue exists

Descrizione

bool msg_queue_exists ( int $key )

Checks whether the message queue key exists.

Elenco dei parametri

key

Queue key.

Valori restituiti

Restituisce TRUE in caso di successo, FALSE in caso di fallimento.

Vedere anche:

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User Contributed Notes 3 notes

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0
tkuschel at loytec dot com
2 years ago
Following code will do the job:
<?php
$key
= 0;
while (
true) {
  echo
$key,"...\r";
  if (
msg_queue_exists($key))
   echo
"\r",$key,'::Exists',"\n";
  
$key++;
}
?>
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0
michael dot hajuu at gmail dot com
3 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++;
}
?>
up
0
jaredm
4 years ago
A workaround for those not yet running 5.3 on *nix:

<?php
function queue_exists($key) {
    if(
function_exists("msg_queue_exists")) {
        return
msg_queue_exists($key);
    } else {
       
$aQueues = array();
       
exec("ipcs -q | grep \"^[0-9]\" | cut -d \" \" -f 1", $aQueues);
        if(
in_array($key,$aQueues)) return true;
        else return
false;
    }
}
?>

Maybe a bit slow and kludgey, but it works.
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