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56 lines
2.6 KiB
HTML
56 lines
2.6 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>清空（擦掉）输出缓冲区</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-clean" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">ob_clean</h1>
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<p class="verinfo">(PHP 4 >= 4.2.0, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">ob_clean</span> — <span class="dc-title">清空（擦掉）输出缓冲区</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.ob-clean-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_clean</strong></span>
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( <span class="methodparam">void</span>
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) : <span class="type"><span class="type void">void</span></span></div>
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<p class="para rdfs-comment">
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此函数用来丢弃输出缓冲区中的内容。
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</p>
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<p class="para">
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此函数不会像 <span class="function"><a href="ob_end_clean.html" class="function">ob_end_clean()</a></span> 函数那样销毁输出缓冲区。
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</p>
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<p class="para">
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输出缓冲必须已被
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<span class="function"><a href="ob_start.html" class="function">ob_start()</a></span> 以 <a href="outcontrol.constants.html#constant.php-output-handler-cleanable" class="link">PHP_OUTPUT_HANDLER_CLEANABLE</a>
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标记启动。否则 <span class="function"><strong>ob_clean()</strong></span> 不会有效果。
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</p>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.ob-clean-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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没有返回值。
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</p>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.ob-clean-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_flush.html" class="function" rel="rdfs-seeAlso">ob_flush()</a> - 冲刷出（送出）输出缓冲区中的内容</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_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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</ul>
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</p>
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</div>
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</div></div></div></body></html> |