/php/function.ob-get-length.html

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  2. <html>
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  3.  <head>
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  4.   <meta http-equiv="content-type" content="text/html; charset=UTF-8">
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  5.   <title>返回输出缓冲区内容的长度</title>
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  11.  <div class="up"><a href="ref.outcontrol.html">Output Control 函数</a></div>
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  12.  <div class="home"><a href="index.html">PHP Manual</a></div>
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  13. </div><hr /><div id="function.ob-get-length" class="refentry">
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  14.  <div class="refnamediv">
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  15.   <h1 class="refname">ob_get_length</h1>
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  16.   <p class="verinfo">(PHP 4 &gt;= 4.0.2, PHP 5)</p><p class="refpurpose"><span class="refname">ob_get_length</span> &mdash; <span class="dc-title">返回输出缓冲区内容的长度</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.ob-get-length-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>ob_get_length</strong></span>
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  24.     ( <span class="methodparam">void</span>
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  25.    )</div>
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  26. 

  27.   <p class="para rdfs-comment">
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  28.    此函数将返回输出缓中冲区内容的长度。
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  29.   </p>
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  30.  </div>
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  33.  <div class="refsect1 returnvalues" id="refsect1-function.ob-get-length-returnvalues">
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  34.   <h3 class="title">返回值</h3>
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  35.   <p class="para">
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  36.    返回输出缓冲区内容的长度；或者返回<strong><code>FALSE</code></strong>——如果没有起作用的缓冲区。
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  37.   </p>
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  38.  </div>
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  41.  <div class="refsect1 examples" id="refsect1-function.ob-get-length-examples">
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  42.   <h3 class="title">范例</h3>
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  43.   <p class="para">
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  44.    <div class="example" id="example-425">
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  45.     <p><strong>Example #1 A simple  <span class="function"><strong>ob_get_length()</strong></span> example</strong></p>
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  46.     <div class="example-contents">
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  47. <div class="phpcode"><code><span style="color: #000000">
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  48. <span style="color: #0000BB">&lt;?php<br /><br />ob_start</span><span style="color: #007700">();<br /><br />echo&nbsp;</span><span style="color: #DD0000">"Hello&nbsp;"</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">$len1&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">ob_get_length</span><span style="color: #007700">();<br /><br />echo&nbsp;</span><span style="color: #DD0000">"World"</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">$len2&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">ob_get_length</span><span style="color: #007700">();<br /><br /></span><span style="color: #0000BB">ob_end_clean</span><span style="color: #007700">();<br /><br />echo&nbsp;</span><span style="color: #0000BB">$len1&nbsp;</span><span style="color: #007700">.&nbsp;</span><span style="color: #DD0000">",&nbsp;."&nbsp;</span><span style="color: #007700">.&nbsp;</span><span style="color: #0000BB">$len2</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">?&gt;</span>
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  49. </span>
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  50. </code></div>
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  51.     </div>
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  52. 

  53.     <div class="example-contents"><p>以上例程会输出：</p></div>
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  54.     <div class="example-contents screen">
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  55. <div class="cdata"><pre>
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  56. 6, 11
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  57. </pre></div>
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  58.     </div>
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  59.    </div>
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  60.   </p>
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  61.  </div>
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  64.  <div class="refsect1 seealso" id="refsect1-function.ob-get-length-seealso">
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  65.   <h3 class="title">参见</h3>
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  66.   <p class="para">
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  67.    <ul class="simplelist">
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  68.     <li class="member"> <span class="function"><a href="function.ob-start.html" class="function" rel="rdfs-seeAlso">ob_start()</a> - 打开输出控制缓冲</span></li>
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  69.     <li class="member"> <span class="function"><a href="function.ob-get-contents.html" class="function" rel="rdfs-seeAlso">ob_get_contents()</a> - 返回输出缓冲区的内容</span></li>
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  70.    </ul>
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  71.   </p>
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  80. </div></body></html>
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