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87 lines
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HTML
87 lines
5.0 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>列出所有使用中的输出处理程序。</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-list-handlers" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">ob_list_handlers</h1>
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<p class="verinfo">(PHP 4 >= 4.3.0, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">ob_list_handlers</span> — <span class="dc-title">列出所有使用中的输出处理程序。</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.ob-list-handlers-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_list_handlers</strong></span>
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( <span class="methodparam">void</span>
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) : <span class="type">array</span></div>
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<p class="para rdfs-comment">
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列出所有使用中的输出处理程序。
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</p>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.ob-list-handlers-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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此函数将返回一个数组，数组元素是正在使用中输出处理程序名（如果存在的输出处理程序的话）。
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如果启用了<a href="outcontrol.configuration.html#ini.output-buffering" class="link">output_buffering</a> 或者在
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<span class="function"><a href="ob_start.html" class="function">ob_start()</a></span> 中创建了一个匿名函数，<span class="function"><strong>ob_list_handlers()</strong></span> 将返回 "default output handler"。
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.ob-list-handlers-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-480">
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<p><strong>Example #1 <span class="function"><strong>ob_list_handlers()</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 /></span><span style="color: #FF8000">//using output_buffering=On<br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">ob_list_handlers</span><span style="color: #007700">());<br /></span><span style="color: #0000BB">ob_end_flush</span><span style="color: #007700">();<br /><br /></span><span style="color: #0000BB">ob_start</span><span style="color: #007700">(</span><span style="color: #DD0000">"ob_gzhandler"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">ob_list_handlers</span><span style="color: #007700">());<br /></span><span style="color: #0000BB">ob_end_flush</span><span style="color: #007700">();<br /><br /></span><span style="color: #FF8000">// anonymous functions<br /></span><span style="color: #0000BB">ob_start</span><span style="color: #007700">(</span><span style="color: #0000BB">create_function</span><span style="color: #007700">(</span><span style="color: #DD0000">'$string'</span><span style="color: #007700">, </span><span style="color: #DD0000">'return $string;'</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">ob_list_handlers</span><span style="color: #007700">());<br /></span><span style="color: #0000BB">ob_end_flush</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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Array
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(
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[0] => default output handler
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)
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Array
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(
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[0] => ob_gzhandler
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)
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Array
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(
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[0] => default output handler
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)
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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-list-handlers-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_end_clean.html" class="function" rel="rdfs-seeAlso">ob_end_clean()</a> - 清空（擦除）缓冲区并关闭输出缓冲</span></li>
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<li class="member"><span class="function"><a href="ob_end_flush.html" class="function" rel="rdfs-seeAlso">ob_end_flush()</a> - 冲刷出（送出）输出缓冲区内容并关闭缓冲</span></li>
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<li class="member"><span class="function"><a href="ob_get_flush.html" class="function" rel="rdfs-seeAlso">ob_get_flush()</a> - 刷出（送出）缓冲区内容，以字符串形式返回内容，并关闭输出缓冲区。</span></li>
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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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</ul>
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</p>
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</div>
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</div></div></div></body></html> |