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135 lines
5.3 KiB
HTML
135 lines
5.3 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>返回单元顺序相反的数组</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-reverse" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">array_reverse</h1>
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<p class="verinfo">(PHP 4, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">array_reverse</span> — <span class="dc-title">
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返回单元顺序相反的数组
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</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.array-reverse-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_reverse</strong></span>
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( <span class="methodparam"><span class="type">array</span> <code class="parameter">$array</code></span>
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[, <span class="methodparam"><span class="type">bool</span> <code class="parameter">$preserve_keys</code><span class="initializer"> = <strong><code>FALSE</code></strong></span></span>
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] ) : <span class="type">array</span></div>
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<p class="para rdfs-comment">
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<span class="function"><strong>array_reverse()</strong></span> 接受数组
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<code class="parameter">array</code> 作为输入并返回一个单元为相反顺序的新数组。
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.array-reverse-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">array</code></dt>
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<dd>
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<p class="para">
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输入的数组。
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</p>
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</dd>
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<dt>
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<code class="parameter">preserve_keys</code></dt>
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<dd>
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<p class="para">
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如果设置为 <strong><code>TRUE</code></strong> 会保留数字的键。
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非数字的键则不受这个设置的影响，总是会被保留。
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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.array-reverse-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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返回反转后的数组。
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.array-reverse-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-6063">
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<p><strong>Example #1 <span class="function"><strong>array_reverse()</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 />$input </span><span style="color: #007700">= array(</span><span style="color: #DD0000">"php"</span><span style="color: #007700">, </span><span style="color: #0000BB">4.0</span><span style="color: #007700">, array(</span><span style="color: #DD0000">"green"</span><span style="color: #007700">, </span><span style="color: #DD0000">"red"</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">$reversed </span><span style="color: #007700">= </span><span style="color: #0000BB">array_reverse</span><span style="color: #007700">(</span><span style="color: #0000BB">$input</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$preserved </span><span style="color: #007700">= </span><span style="color: #0000BB">array_reverse</span><span style="color: #007700">(</span><span style="color: #0000BB">$input</span><span style="color: #007700">, </span><span style="color: #0000BB">true</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">$input</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">$reversed</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">$preserved</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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Array
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(
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[0] => php
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[1] => 4
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[2] => Array
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(
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[0] => green
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[1] => red
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)
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)
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Array
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(
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[0] => Array
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(
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[0] => green
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[1] => red
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)
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[1] => 4
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[2] => php
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)
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Array
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(
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[2] => Array
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(
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[0] => green
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[1] => red
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)
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[1] => 4
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[0] => php
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)
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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.array-reverse-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="array_flip.html" class="function" rel="rdfs-seeAlso">array_flip()</a> - 交换数组中的键和值</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> |