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113 lines
4.3 KiB
HTML
113 lines
4.3 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>统计字符串出现的次数</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.mb-substr-count" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">mb_substr_count</h1>
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<p class="verinfo">(PHP 4 >= 4.3.0, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">mb_substr_count</span> — <span class="dc-title">统计字符串出现的次数</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.mb-substr-count-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>mb_substr_count</strong></span>
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( <span class="methodparam"><span class="type">string</span> <code class="parameter">$haystack</code></span>
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, <span class="methodparam"><span class="type">string</span> <code class="parameter">$needle</code></span>
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[, <span class="methodparam"><span class="type">string</span> <code class="parameter">$encoding</code><span class="initializer"> = mb_internal_encoding()</span></span>
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] ) : <span class="type">int</span></div>
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<p class="para rdfs-comment">
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统计子字符串 <code class="parameter">needle</code> 出现在<span class="type"><span class="type 字符串">字符串</span></span> <code class="parameter">haystack</code> 中的次数。
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.mb-substr-count-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">haystack</code></dt>
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<dd>
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<p class="para">
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要检查的<span class="type"><span class="type 字符串">字符串</span></span>。
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</p>
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</dd>
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<dt>
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<code class="parameter">needle</code></dt>
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<dd>
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<p class="para">
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待查找的<span class="type"><span class="type 字符串">字符串</span></span>。
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</p>
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</dd>
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<dt>
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<code class="parameter">encoding</code></dt>
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<dd>
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<p class="para"><code class="parameter">encoding</code>
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参数为字符编码。如果省略，则使用内部字符编码。</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.mb-substr-count-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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子字符串 <code class="parameter">needle</code> 出现在<span class="type"><span class="type 字符串">字符串</span></span> <code class="parameter">haystack</code> 中的次数。
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.mb-substr-count-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-3198">
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<p><strong>Example #1 <span class="function"><strong>mb_substr_count()</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: #007700">echo </span><span style="color: #0000BB">mb_substr_count</span><span style="color: #007700">(</span><span style="color: #DD0000">"This is a test"</span><span style="color: #007700">, </span><span style="color: #DD0000">"is"</span><span style="color: #007700">); </span><span style="color: #FF8000">// 输出 2<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 seealso" id="refsect1-function.mb-substr-count-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="mb_strpos.html" class="function" rel="rdfs-seeAlso">mb_strpos()</a> - 查找字符串在另一个字符串中首次出现的位置</span></li>
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<li class="member"><span class="function"><a href="mb_substr.html" class="function" rel="rdfs-seeAlso">mb_substr()</a> - 获取部分字符串</span></li>
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<li class="member"><span class="function"><a href="substr_count.html" class="function" rel="rdfs-seeAlso">substr_count()</a> - 计算字串出现的次数</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> |