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97 lines
3.5 KiB
HTML
97 lines
3.5 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>Undefine a constant</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.uopz-undefine" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">uopz_undefine</h1>
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<p class="verinfo">(PECL uopz 1, PECL uopz 2, PECL uopz 5)</p><p class="refpurpose"><span class="refname">uopz_undefine</span> — <span class="dc-title">Undefine a constant</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.uopz-undefine-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>uopz_undefine</strong></span>
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( <span class="methodparam"><span class="type">string</span> <code class="parameter">$constant</code></span>
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) : <span class="type">bool</span></div>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>uopz_undefine</strong></span>
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( <span class="methodparam"><span class="type">string</span> <code class="parameter">$class</code></span>
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, <span class="methodparam"><span class="type">string</span> <code class="parameter">$constant</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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Removes the constant at runtime
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.uopz-undefine-parameters">
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<h3 class="title">参数</h3>
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<dl>
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<dt>
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<code class="parameter">class</code></dt>
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<dd>
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<p class="para">
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The name of the class containing <code class="parameter">constant</code>
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</p>
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</dd>
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<dt>
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<code class="parameter">constant</code></dt>
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<dd>
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<p class="para">
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The name of an existing constant
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</p>
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</dd>
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</dl>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.uopz-undefine-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 examples" id="refsect1-function.uopz-undefine-examples">
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<h3 class="title">范例</h3>
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<div class="example" id="example-594">
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<p><strong>Example #1 <span class="function"><strong>uopz_undefine()</strong></span> example</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 />define</span><span style="color: #007700">(</span><span style="color: #DD0000">"MY"</span><span style="color: #007700">, </span><span style="color: #0000BB">true</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">uopz_undefine</span><span style="color: #007700">(</span><span style="color: #DD0000">"MY"</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">defined</span><span style="color: #007700">(</span><span style="color: #DD0000">"MY"</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 class="example-contents"><p>以上例程会输出：</p></div>
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<div class="example-contents screen">
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<div class="cdata"><pre>
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bool(false)
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</pre></div>
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</div>
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</div>
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</div>
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</div></div></div></body></html> |