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68 lines
2.4 KiB
HTML
68 lines
2.4 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>Gets the last key of an array</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.array-key-last" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">array_key_last</h1>
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<p class="verinfo">(PHP 7 >= 7.3.0)</p><p class="refpurpose"><span class="refname">array_key_last</span> — <span class="dc-title">Gets the last key of an array</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.array-key-last-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>array_key_last</strong></span>
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( <span class="methodparam"><span class="type">array</span> <code class="parameter">$array</code></span>
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) : <span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span></div>
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<p class="para rdfs-comment">
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Get the last key of the given <code class="parameter">array</code> without affecting
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the internal array pointer.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.array-key-last-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">array</code></dt>
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<dd>
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<p class="para">
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An array.
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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.array-key-last-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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Returns the last key of <code class="parameter">array</code> if the array is not empty;
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<strong><code>NULL</code></strong> otherwise.
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</p>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.array-key-last-seealso">
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<h3 class="title">参见</h3>
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<ul class="simplelist">
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<li class="member"><span class="function"><a href="array_key_first.html" class="function" rel="rdfs-seeAlso">array_key_first()</a> - Gets the first key of an array</span></li>
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<li class="member"><span class="function"><a href="end.html" class="function" rel="rdfs-seeAlso">end()</a> - 将数组的内部指针指向最后一个单元</span></li>
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</ul>
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</div>
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</div></div></div></body></html> |