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70 lines
3.6 KiB
HTML
70 lines
3.6 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>返回输出缓冲区内容的长度</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.ob-get-length" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">ob_get_length</h1>
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<p class="verinfo">(PHP 4 >= 4.0.2, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">ob_get_length</span> — <span class="dc-title">返回输出缓冲区内容的长度</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.ob-get-length-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>ob_get_length</strong></span>
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( <span class="methodparam">void</span>
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) : <span class="type">int</span></div>
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<p class="para rdfs-comment">
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此函数将返回输出缓中冲区内容的长度。
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</p>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.ob-get-length-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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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.ob-get-length-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-478">
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<p><strong>Example #1 A simple <span class="function"><strong>ob_get_length()</strong></span> example</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 /><br />ob_start</span><span style="color: #007700">();<br /><br />echo </span><span style="color: #DD0000">"Hello "</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">$len1 </span><span style="color: #007700">= </span><span style="color: #0000BB">ob_get_length</span><span style="color: #007700">();<br /><br />echo </span><span style="color: #DD0000">"World"</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">$len2 </span><span style="color: #007700">= </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 </span><span style="color: #0000BB">$len1 </span><span style="color: #007700">. </span><span style="color: #DD0000">", ." </span><span style="color: #007700">. </span><span style="color: #0000BB">$len2</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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6, 11
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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.ob-get-length-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="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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<li class="member"><span class="function"><a href="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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</ul>
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</p>
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</div>
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</div></div></div></body></html> |