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71 lines
2.5 KiB
HTML
71 lines
2.5 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>Check whether a message queue exists</title>
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</head>
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<body class="docs"><div id="layout">
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<div id="layout-content"><div id="function.msg-queue-exists" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">msg_queue_exists</h1>
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<p class="verinfo">(PHP 5 >= 5.3.0, PHP 7)</p><p class="refpurpose"><span class="refname">msg_queue_exists</span> — <span class="dc-title">Check whether a message queue exists</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.msg-queue-exists-description">
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<h3 class="title">说明</h3>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>msg_queue_exists</strong></span>
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( <span class="methodparam"><span class="type">int</span> <code class="parameter">$key</code></span>
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) : <span class="type">bool</span></div>
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<p class="para rdfs-comment">
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Checks whether the message queue <code class="parameter">key</code> exists.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.msg-queue-exists-parameters">
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<h3 class="title">参数</h3>
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<p class="para">
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<dl>
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<dt>
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<code class="parameter">key</code></dt>
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<dd>
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<p class="para">
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Queue key.
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</p>
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</dd>
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</dl>
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</p>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.msg-queue-exists-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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成功时返回 <strong><code>TRUE</code></strong>， 或者在失败时返回 <strong><code>FALSE</code></strong>。
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</p>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.msg-queue-exists-seealso">
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<h3 class="title">参见</h3>
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<p class="para">
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<ul class="simplelist">
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<li class="member"><span class="function"><a href="msg_remove_queue.html" class="function" rel="rdfs-seeAlso">msg_remove_queue()</a> - Destroy a message queue</span></li>
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<li class="member"><span class="function"><a href="msg_receive.html" class="function" rel="rdfs-seeAlso">msg_receive()</a> - Receive a message from a message queue</span></li>
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<li class="member"><span class="function"><a href="msg_stat_queue.html" class="function" rel="rdfs-seeAlso">msg_stat_queue()</a> - Returns information from the message queue data structure</span></li>
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</ul>
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</p>
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</div>
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</div></div></div></body></html> |