/php/function.mb-substr-count.html

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  3.  <head>
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  5.   <title>统计字符串出现的次数</title>
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  13. </div><hr /><div id="function.mb-substr-count" class="refentry">
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  14.  <div class="refnamediv">
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  15.   <h1 class="refname">mb_substr_count</h1>
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  16.   <p class="verinfo">(PHP 4 &gt;= 4.3.0, PHP 5)</p><p class="refpurpose"><span class="refname">mb_substr_count</span> &mdash; <span class="dc-title">统计字符串出现的次数</span></p>
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  18.  </div>
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  19.    
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  20.  <div class="refsect1 description" id="refsect1-function.mb-substr-count-description">
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  21.   <h3 class="title">说明</h3>
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  22.   <div class="methodsynopsis dc-description">
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  23.    <span class="type">int</span> <span class="methodname"><strong>mb_substr_count</strong></span>
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  24.     ( <span class="methodparam"><span class="type">string</span> <code class="parameter">$haystack</code></span>
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  25.    , <span class="methodparam"><span class="type">string</span> <code class="parameter">$needle</code></span>
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  26.    [, <span class="methodparam"><span class="type">string</span> <code class="parameter">$encoding</code></span>
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  27.   ] )</div>
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  28. 

  29.   <p class="para rdfs-comment">
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  30.    统计子字符串 <em><code class="parameter">needle</code></em> 出现在<span class="type"><span class="type 字符串">字符串</span></span> <em><code class="parameter">haystack</code></em> 中的次数。
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  31.   </p>
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  32.  </div>
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  35.  <div class="refsect1 parameters" id="refsect1-function.mb-substr-count-parameters">
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  36.   <h3 class="title">参数</h3>
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  37.   <p class="para">
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  38.    <dl>
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  39. 

  40.     <dt>
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  41. 

  42.      <span class="term"><em><code class="parameter">haystack</code></em></span>
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  43.      <dd>
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  44. 

  45.       <p class="para">
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  46.        要检查的<span class="type"><span class="type 字符串">字符串</span></span>。
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  47.       </p>
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  48.      </dd>
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  49. 

  50.     </dt>
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  51. 

  52.     <dt>
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  53. 

  54.      <span class="term"><em><code class="parameter">needle</code></em></span>
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  55.      <dd>
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  56. 

  57.       <p class="para">
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  58.        待查找的<span class="type"><span class="type 字符串">字符串</span></span>。
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  59.       </p>
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  60.      </dd>
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  61. 

  62.     </dt>
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  63. 

  64.     <dt>
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  65. 

  66.      <span class="term"><em><code class="parameter">encoding</code></em></span>
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  67.      <dd>
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  68. 

  69.       <p class="para"><em><code class="parameter">encoding</code></em>
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  70. 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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  71.      </dd>
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  72. 

  73.     </dt>
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  74. 

  75.    </dl>
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  77.   </p>
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  78.  </div>
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  80. 

  81.  <div class="refsect1 returnvalues" id="refsect1-function.mb-substr-count-returnvalues">
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  82.   <h3 class="title">返回值</h3>
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  83.   <p class="para">
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  84.    子字符串 <em><code class="parameter">needle</code></em> 出现在<span class="type"><span class="type 字符串">字符串</span></span> <em><code class="parameter">haystack</code></em> 中的次数。
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  85.   </p>
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  86.  </div>
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  87. 

  88. 

  89.  <div class="refsect1 examples" id="refsect1-function.mb-substr-count-examples">
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  90.   <h3 class="title">范例</h3>
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  91.   <p class="para">
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  92.    <div class="example" id="example-2567">
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  93.     <p><strong>Example #1  <span class="function"><strong>mb_substr_count()</strong></span> 例子</strong></p>
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  94.     <div class="example-contents">
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  95. <div class="phpcode"><code><span style="color: #000000">
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  96. <span style="color: #0000BB">&lt;?php<br /></span><span style="color: #007700">echo&nbsp;</span><span style="color: #0000BB">mb_substr_count</span><span style="color: #007700">(</span><span style="color: #DD0000">"This&nbsp;is&nbsp;a&nbsp;test"</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"is"</span><span style="color: #007700">);&nbsp;</span><span style="color: #FF8000">//&nbsp;输出&nbsp;2<br /></span><span style="color: #0000BB">?&gt;</span>
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  97. </span>
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  98. </code></div>
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  99.     </div>
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  100. 

  101.    </div>
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  102.   </p>
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  103.  </div>
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  106.  <div class="refsect1 seealso" id="refsect1-function.mb-substr-count-seealso">
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  107.   <h3 class="title">参见</h3>
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  108.   <p class="para">
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  109.    <ul class="simplelist">
    110. 

  110.     <li class="member"> <span class="function"><a href="function.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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  111.     <li class="member"> <span class="function"><a href="function.mb-substr.html" class="function" rel="rdfs-seeAlso">mb_substr()</a> - 获取字符串的部分</span></li>
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  112.     <li class="member"> <span class="function"><a href="function.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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  113.    </ul>
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