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73 lines
2.5 KiB
HTML
73 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>返回循环引用计数器的状态</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.gc-enabled" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">gc_enabled</h1>
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<p class="verinfo">(PHP 5 >= 5.3.0, PHP 7)</p><p class="refpurpose"><span class="refname">gc_enabled</span> — <span class="dc-title">返回循环引用计数器的状态</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.gc-enabled-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>gc_enabled</strong></span>
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( <span class="methodparam">void</span>
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) : <span class="type">bool</span></div>
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<p class="para rdfs-comment">
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返回循环引用计数器的状态。
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.gc-enabled-parameters">
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<h3 class="title">参数</h3>
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<p class="para">此函数没有参数。</p>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.gc-enabled-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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如果垃圾收集器已启用则返回 <strong><code>TRUE</code></strong>，否则返回 <strong><code>FALSE</code></strong>。
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.gc-enabled-examples">
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<h3 class="title">范例</h3>
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<p class="para">
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<div class="example" id="example-493">
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<p><strong>Example #1 一个 <span class="function"><strong>gc_enabled()</strong></span> 例子</strong></p>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br /></span><span style="color: #007700">if(</span><span style="color: #0000BB">gc_enabled</span><span style="color: #007700">()) </span><span style="color: #0000BB">gc_collect_cycles</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">?></span>
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</span>
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</pre></div>
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</div>
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</div>
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</p>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.gc-enabled-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"><a href="features.gc.html" class="link">垃圾回收机制</a></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> |