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<!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>根据范围创建数组，包含指定的元素</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.range" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">range</h1>
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<p class="verinfo">(PHP 4, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">range</span> — <span class="dc-title">
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根据范围创建数组，包含指定的元素
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</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.range-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>range</strong></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">$start</code></span>
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, <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$end</code></span>
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[, <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.number" class="type number">number</a></span> <code class="parameter">$step</code><span class="initializer"> = 1</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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建立一个包含指定范围单元的数组。
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.range-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</code></dt>
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<dd>
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<p class="para">
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序列的第一个值。
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</p>
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</dd>
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<dt>
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<code class="parameter">end</code></dt>
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<dd>
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<p class="para">
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序列结束于 <code class="parameter">end</code> 的值。
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</p>
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</dd>
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<dt>
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<code class="parameter">step</code></dt>
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<dd>
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<p class="para">
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如果设置了步长 <code class="parameter">step</code>，会被作为单元之间的步进值。<code class="parameter">step</code>
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应该为正值。不设置<code class="parameter">step</code> 则默认为 1。
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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.range-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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返回的数组中从
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<code class="parameter">start</code> 到 <code class="parameter">end</code> （含 start 和 end）的单元。
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.range-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-6114">
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<p><strong>Example #1 <span class="function"><strong>range()</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 /></span><span style="color: #FF8000">// array(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)<br /></span><span style="color: #007700">foreach (</span><span style="color: #0000BB">range</span><span style="color: #007700">(</span><span style="color: #0000BB">0</span><span style="color: #007700">, </span><span style="color: #0000BB">12</span><span style="color: #007700">) as </span><span style="color: #0000BB">$number</span><span style="color: #007700">) {<br /> echo </span><span style="color: #0000BB">$number</span><span style="color: #007700">;<br />}<br /><br /></span><span style="color: #FF8000">// step 参数<br />// array(0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100)<br /></span><span style="color: #007700">foreach (</span><span style="color: #0000BB">range</span><span style="color: #007700">(</span><span style="color: #0000BB">0</span><span style="color: #007700">, </span><span style="color: #0000BB">100</span><span style="color: #007700">, </span><span style="color: #0000BB">10</span><span style="color: #007700">) as </span><span style="color: #0000BB">$number</span><span style="color: #007700">) {<br /> echo </span><span style="color: #0000BB">$number</span><span style="color: #007700">;<br />}<br /><br /></span><span style="color: #FF8000">// 字符序列的使用<br />// array('a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i');<br /></span><span style="color: #007700">foreach (</span><span style="color: #0000BB">range</span><span style="color: #007700">(</span><span style="color: #DD0000">'a'</span><span style="color: #007700">, </span><span style="color: #DD0000">'i'</span><span style="color: #007700">) as </span><span style="color: #0000BB">$letter</span><span style="color: #007700">) {<br /> echo </span><span style="color: #0000BB">$letter</span><span style="color: #007700">;<br />}<br /></span><span style="color: #FF8000">// array('c', 'b', 'a');<br /></span><span style="color: #007700">foreach (</span><span style="color: #0000BB">range</span><span style="color: #007700">(</span><span style="color: #DD0000">'c'</span><span style="color: #007700">, </span><span style="color: #DD0000">'a'</span><span style="color: #007700">) as </span><span style="color: #0000BB">$letter</span><span style="color: #007700">) {<br /> echo </span><span style="color: #0000BB">$letter</span><span style="color: #007700">;<br />}<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>
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</p>
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</div>
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<div class="refsect1 notes" id="refsect1-function.range-notes">
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<h3 class="title">注释</h3>
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<blockquote class="note"><p><strong class="note">Note</strong>:
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<p class="para">
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字符序列值仅限单个字符。
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如果长度大于1，仅仅使用第一个字符。
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</p>
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</p></blockquote>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.range-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="shuffle.html" class="function" rel="rdfs-seeAlso">shuffle()</a> - 打乱数组</span></li>
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<li class="member"><span class="function"><a href="array_fill.html" class="function" rel="rdfs-seeAlso">array_fill()</a> - 用给定的值填充数组</span></li>
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<li class="member"><a href="control_structures.foreach.html" class="link">foreach</a></li>
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</ul>
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</p>
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</div>
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<!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>根据范围创建数组，包含指定的元素</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.range" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">range</h1>
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<p class="verinfo">(PHP 4, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">range</span> — <span class="dc-title">
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根据范围创建数组，包含指定的元素
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</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.range-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>range</strong></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">$start</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">$end</code></span>
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[, <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.number" class="type number">number</a></span> <code class="parameter">$step</code><span class="initializer"> = 1</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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建立一个包含指定范围单元的数组。
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.range-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</code></dt>
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<dd>
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<p class="para">
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序列的第一个值。
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</p>
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</dd>
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<dt>
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<code class="parameter">end</code></dt>
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<dd>
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<p class="para">
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序列结束于 <code class="parameter">end</code> 的值。
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</p>
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</dd>
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<dt>
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<code class="parameter">step</code></dt>
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<dd>
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<p class="para">
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如果设置了步长 <code class="parameter">step</code>，会被作为单元之间的步进值。<code class="parameter">step</code>
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应该为正值。不设置<code class="parameter">step</code> 则默认为 1。
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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.range-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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返回的数组中从
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<code class="parameter">start</code> 到 <code class="parameter">end</code> （含 start 和 end）的单元。
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.range-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-6114">
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<p><strong>Example #1 <span class="function"><strong>range()</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 /></span><span style="color: #FF8000">// array(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)<br /></span><span style="color: #007700">foreach (</span><span style="color: #0000BB">range</span><span style="color: #007700">(</span><span style="color: #0000BB">0</span><span style="color: #007700">, </span><span style="color: #0000BB">12</span><span style="color: #007700">) as </span><span style="color: #0000BB">$number</span><span style="color: #007700">) {<br /> echo </span><span style="color: #0000BB">$number</span><span style="color: #007700">;<br />}<br /><br /></span><span style="color: #FF8000">// step 参数<br />// array(0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100)<br /></span><span style="color: #007700">foreach (</span><span style="color: #0000BB">range</span><span style="color: #007700">(</span><span style="color: #0000BB">0</span><span style="color: #007700">, </span><span style="color: #0000BB">100</span><span style="color: #007700">, </span><span style="color: #0000BB">10</span><span style="color: #007700">) as </span><span style="color: #0000BB">$number</span><span style="color: #007700">) {<br /> echo </span><span style="color: #0000BB">$number</span><span style="color: #007700">;<br />}<br /><br /></span><span style="color: #FF8000">// 字符序列的使用<br />// array('a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i');<br /></span><span style="color: #007700">foreach (</span><span style="color: #0000BB">range</span><span style="color: #007700">(</span><span style="color: #DD0000">'a'</span><span style="color: #007700">, </span><span style="color: #DD0000">'i'</span><span style="color: #007700">) as </span><span style="color: #0000BB">$letter</span><span style="color: #007700">) {<br /> echo </span><span style="color: #0000BB">$letter</span><span style="color: #007700">;<br />}<br /></span><span style="color: #FF8000">// array('c', 'b', 'a');<br /></span><span style="color: #007700">foreach (</span><span style="color: #0000BB">range</span><span style="color: #007700">(</span><span style="color: #DD0000">'c'</span><span style="color: #007700">, </span><span style="color: #DD0000">'a'</span><span style="color: #007700">) as </span><span style="color: #0000BB">$letter</span><span style="color: #007700">) {<br /> echo </span><span style="color: #0000BB">$letter</span><span style="color: #007700">;<br />}<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>
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</p>
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</div>
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<div class="refsect1 notes" id="refsect1-function.range-notes">
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<h3 class="title">注释</h3>
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<blockquote class="note"><p><strong class="note">Note</strong>:
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<p class="para">
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字符序列值仅限单个字符。
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如果长度大于1，仅仅使用第一个字符。
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</p>
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</p></blockquote>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.range-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="shuffle.html" class="function" rel="rdfs-seeAlso">shuffle()</a> - 打乱数组</span></li>
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<li class="member"><span class="function"><a href="array_fill.html" class="function" rel="rdfs-seeAlso">array_fill()</a> - 用给定的值填充数组</span></li>
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<li class="member"><a href="control_structures.foreach.html" class="link">foreach</a></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>
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