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194 lines
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HTML
194 lines
6.7 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>用给定的值填充数组</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-fill" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">array_fill</h1>
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<p class="verinfo">(PHP 4 >= 4.2.0, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">array_fill</span> — <span class="dc-title">用给定的值填充数组</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.array-fill-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_fill</strong></span>
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( <span class="methodparam"><span class="type">int</span> <code class="parameter">$start_index</code></span>
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, <span class="methodparam"><span class="type">int</span> <code class="parameter">$num</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">$value</code></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_fill()</strong></span> 用 <code class="parameter">value</code>
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参数的值将一个数组填充 <code class="parameter">num</code> 个条目，键名由
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<code class="parameter">start_index</code> 参数指定的开始。
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.array-fill-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">start_index</code></dt>
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<dd>
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<p class="para">
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返回的数组的第一个索引值。
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</p>
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<p class="para">
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如果 <code class="parameter">start_index</code> 是负数，
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那么返回的数组的第一个索引将会是
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<code class="parameter">start_index</code> ，而后面索引则从0开始。
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(参见 <a href="array-fill.html#function.array-fill.example.basic" class="link">例子</a>)。
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</p>
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</dd>
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<dt>
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<code class="parameter">num</code></dt>
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<dd>
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<p class="para">
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插入元素的数量。
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必须大于或等于 0。
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</p>
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</dd>
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<dt>
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<code class="parameter">value</code></dt>
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<dd>
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<p class="para">
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用来填充的值。
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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-fill-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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返回填充后的数组。
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</p>
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</div>
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<div class="refsect1 errors" id="refsect1-function.array-fill-errors">
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<h3 class="title">错误／异常</h3>
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<p class="para">
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如果 <code class="parameter">num</code> 小于零，将会抛出 <strong><code>E_WARNING</code></strong>。
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</p>
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</div>
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<div class="refsect1 changelog" id="refsect1-function.array-fill-changelog">
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<h3 class="title">更新日志</h3>
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<p class="para">
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<table class="doctable informaltable">
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<thead>
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<tr>
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<th>版本</th>
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<th>说明</th>
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</tr>
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</thead>
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<tbody class="tbody">
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<tr>
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<td>5.6.0</td>
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<td>
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<code class="parameter">num</code> 现在可以是零。
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之前
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<code class="parameter">num</code> 必须大于零。
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</td>
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</tr>
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</tbody>
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</table>
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.array-fill-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-6026">
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<p><strong>Example #1 <span class="function"><strong>array_fill()</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 />$a </span><span style="color: #007700">= </span><span style="color: #0000BB">array_fill</span><span style="color: #007700">(</span><span style="color: #0000BB">5</span><span style="color: #007700">, </span><span style="color: #0000BB">6</span><span style="color: #007700">, </span><span style="color: #DD0000">'banana'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$b </span><span style="color: #007700">= </span><span style="color: #0000BB">array_fill</span><span style="color: #007700">(-</span><span style="color: #0000BB">2</span><span style="color: #007700">, </span><span style="color: #0000BB">4</span><span style="color: #007700">, </span><span style="color: #DD0000">'pear'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">$a</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">$b</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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[5] => banana
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[6] => banana
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[7] => banana
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[8] => banana
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[9] => banana
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[10] => banana
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)
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Array
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(
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[-2] => pear
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[0] => pear
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[1] => pear
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[2] => pear
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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 notes" id="refsect1-function.array-fill-notes">
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<h3 class="title">注释</h3>
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<p class="para">
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参见手册上 <a href="language.types.array.html" class="link">数组</a> 一节里关于负数的键的详细解释。
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</p>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.array-fill-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_fill_keys.html" class="function" rel="rdfs-seeAlso">array_fill_keys()</a> - 使用指定的键和值填充数组</span></li>
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<li class="member"><span class="function"><a href="str_repeat.html" class="function" rel="rdfs-seeAlso">str_repeat()</a> - 重复一个字符串</span></li>
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<li class="member"><span class="function"><a href="range.html" class="function" rel="rdfs-seeAlso">range()</a> - 根据范围创建数组，包含指定的元素</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> |