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135 lines
6.0 KiB
HTML
135 lines
6.0 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>将一个或多个单元压入数组的末尾（入栈）</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-push" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">array_push</h1>
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<p class="verinfo">(PHP 4, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">array_push</span> — <span class="dc-title">
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将一个或多个单元压入数组的末尾（入栈）
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</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.array-push-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_push</strong></span>
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( <span class="methodparam"><span class="type">array</span> <code class="parameter reference">&$array</code></span>
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, <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$value1</code></span>
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[, <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$...</code></span>
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] ) : <span class="type">int</span></div>
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<p class="para rdfs-comment">
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<span class="function"><strong>array_push()</strong></span> 将
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<code class="parameter">array</code> 当成一个栈，并将传入的变量压入
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<code class="parameter">array</code> 的末尾。<code class="parameter">array</code>
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的长度将根据入栈变量的数目增加。和如下效果相同：
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br />$array</span><span style="color: #007700">[] = </span><span style="color: #0000BB">$var</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">?></span>
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</span>
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</pre></div>
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</div>
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并对每个传入的值重复以上动作。
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</p>
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<blockquote class="note"><p><strong class="note">Note</strong>:
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<span class="simpara">
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如果用 <span class="function"><strong>array_push()</strong></span> 来给数组增加一个单元，还不如用
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<em>$array[] = </em>，因为这样没有调用函数的额外负担。
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</span>
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</p></blockquote>
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<blockquote class="note"><p><strong class="note">Note</strong>:
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<span class="simpara">
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如果第一个参数不是数组，<span class="function"><strong>array_push()</strong></span>
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将发出一条警告。这和
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<em>$var[]</em> 的行为不同，后者会新建一个数组。
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</span>
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</p></blockquote>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.array-push-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">value1</code></dt>
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<dd>
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<p class="para">
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要压入 <code class="parameter">array</code> 末尾的第一个值。
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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-push-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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返回处理之后数组的元素个数。
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.array-push-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-6057">
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<p><strong>Example #1 <span class="function"><strong>array_push()</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 />$stack </span><span style="color: #007700">= array(</span><span style="color: #DD0000">"orange"</span><span style="color: #007700">, </span><span style="color: #DD0000">"banana"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">array_push</span><span style="color: #007700">(</span><span style="color: #0000BB">$stack</span><span style="color: #007700">, </span><span style="color: #DD0000">"apple"</span><span style="color: #007700">, </span><span style="color: #DD0000">"raspberry"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">$stack</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] => orange
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[1] => banana
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[2] => apple
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[3] => raspberry
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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-push-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_pop.html" class="function" rel="rdfs-seeAlso">array_pop()</a> - 弹出数组最后一个单元（出栈）</span></li>
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<li class="member"><span class="function"><a href="array_shift.html" class="function" rel="rdfs-seeAlso">array_shift()</a> - 将数组开头的单元移出数组</span></li>
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<li class="member"><span class="function"><a href="array_unshift.html" class="function" rel="rdfs-seeAlso">array_unshift()</a> - 在数组开头插入一个或多个单元</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> |