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147 lines
5.6 KiB
HTML
147 lines
5.6 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>在ob_start中使用的用来压缩输出缓冲区中内容的回调函数。ob_start callback function to gzip output buffer</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-gzhandler" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">ob_gzhandler</h1>
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<p class="verinfo">(PHP 4 >= 4.0.4, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">ob_gzhandler</span> — <span class="dc-title">在ob_start中使用的用来压缩输出缓冲区中内容的回调函数。ob_start callback function to gzip output buffer</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.ob-gzhandler-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_gzhandler</strong></span>
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( <span class="methodparam"><span class="type">string</span> <code class="parameter">$buffer</code></span>
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, <span class="methodparam"><span class="type">int</span> <code class="parameter">$mode</code></span>
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) : <span class="type">string</span></div>
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<p class="para rdfs-comment">
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<span class="function"><strong>ob_gzhandler()</strong></span>目的是用在<span class="function"><a href="ob_start.html" class="function">ob_start()</a></span>中作回调函数，以方便将gz 编码的数据发送到支持压缩页面的浏览器。在<span class="function"><strong>ob_gzhandler()</strong></span>真正发送压缩过的数据之前，该 函数会确定（判定）浏览器可以接受哪种类型内容编码（"gzip","deflate",或者根本什么都不支持），然后 返回相应的输出。
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所有可以发送正确头信息表明他自己可以接受压缩的网页的浏览器，都可以支持。
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All browsers are supported since it's up to the browser to send the
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correct header saying that it accepts compressed web pages.
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如果一个浏览器不支持压缩过的页面，此函数返回<strong><code>FALSE</code></strong>。
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.ob-gzhandler-parameters">
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<h3 class="title">参数</h3>
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<p class="para">
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<dl>
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<dt>
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<code class="parameter">buffer</code></dt>
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<dd>
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<p class="para">
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</p>
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</dd>
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<dt>
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<code class="parameter">mode</code></dt>
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<dd>
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<p class="para">
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</p>
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</dd>
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</dl>
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</p>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.ob-gzhandler-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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</p>
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</div>
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<div class="refsect1 changelog" id="refsect1-function.ob-gzhandler-changelog">
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<h3 class="title">更新日志</h3>
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<p class="para">
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<table class="doctable informaltable">
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<thead>
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<tr>
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<th>版本</th>
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<th>说明</th>
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</tr>
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</thead>
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<tbody class="tbody">
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<tr>
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<td>4.0.5</td>
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<td>
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填加了 <code class="parameter">mode</code> 参数。
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</td>
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</tr>
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</tbody>
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</table>
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.ob-gzhandler-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-479">
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<p><strong>Example #1 <span class="function"><strong>ob_gzhandler()</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">(</span><span style="color: #DD0000">"ob_gzhandler"</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">?><br /></span><html><br /><body><br /><p>This should be a compressed page.</p><br /></html><br /><body></span>
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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 notes" id="refsect1-function.ob-gzhandler-notes">
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<h3 class="title">注释</h3>
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<blockquote class="note"><p><strong class="note">Note</strong>:
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<p class="para">
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<span class="function"><strong>ob_gzhandler()</strong></span> 需要 <a href="ref.zlib.html" class="link">zlib</a> 扩展。
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</p>
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</p></blockquote>
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<blockquote class="note"><p><strong class="note">Note</strong>:
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<p class="para">
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不能同时使用<span class="function"><strong>ob_gzhandler()</strong></span> 和 <a href="zlib.configuration.html#ini.zlib.output-compression" class="link">zlib.output_compression</a>。
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也要注意使用 <a href="zlib.configuration.html#ini.zlib.output-compression" class="link">
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zlib.output_compression</a> 要优于 <span class="function"><strong>ob_gzhandler()</strong></span>。
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</p>
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</p></blockquote>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.ob-gzhandler-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_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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</ul>
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</p>
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</div>
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</div></div></div></body></html> |