php-doc-en/reference/sem/functions/msg-set-queue.xml

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  <refentry id="function.msg-set-queue">
   <refnamediv>
    <refname>msg_set_queue</refname>
    <refpurpose>
     Set information in the message queue data structure
    </refpurpose>
   </refnamediv>
   <refsect1>
    <title>Description</title>
    <methodsynopsis>
     <type>bool</type><methodname>msg_set_queue</methodname>
     <methodparam><type>resource</type><parameter>queue</parameter></methodparam>
     <methodparam><type>array</type><parameter>data</parameter></methodparam>
    </methodsynopsis>
    <para>
     <function>msg_set_queue</function> allows you to change the values of the
     msg_perm.uid, msg_perm.gid, msg_perm.mode and msg_qbytes fields of the
     underlying message queue data structure.
     You specify the values you require by setting the value of the keys that
     you require in the <parameter>data</parameter> array.
    </para>
    <para>
     Changing the data structure will require that PHP be running as the same
     user that created the queue, owns the queue (as determined by the
     existing msg_perm.xxx fields), or be running with root privileges.
     root privileges are required to raise the msg_qbytes values above the
     system defined limit.
    </para>
    <para>
     See also <function>msg_remove_queue</function>,
     <function>msg_receive</function>,
     <function>msg_stat_queue</function> and
     <function>msg_set_queue</function>.
    </para>
   </refsect1>
  </refentry>

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