📄 function.ob-gzhandler.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <title>ob_start callback function to gzip output buffer</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.ob-get-status.html">ob_get_status</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.ob-implicit-flush.html">ob_implicit_flush</a></div> <div class="up"><a href="ref.outcontrol.html">Output Control Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.ob-gzhandler" class="refentry"> <div class="refnamediv"> <h1 class="refname">ob_gzhandler</h1> <p class="verinfo">(PHP 4 >= 4.0.4, PHP 5)</p><p class="refpurpose"><span class="refname">ob_gzhandler</span> — <span class="dc-title">ob_start callback function to gzip output buffer</span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">string</span> <span class="methodname"><b><b>ob_gzhandler</b></b></span> ( <span class="methodparam"><span class="type">string</span> <tt class="parameter">$buffer</tt></span> , <span class="methodparam"><span class="type">int</span> <tt class="parameter">$mode</tt></span> )</div> <p class="para rdfs-comment"> <b>ob_gzhandler()</b> is intended to be used as a callback function for <a href="function.ob-start.html" class="function">ob_start()</a> to help facilitate sending gz-encoded data to web browsers that support compressed web pages. Before <b>ob_gzhandler()</b> actually sends compressed data, it determines what type of content encoding the browser will accept ("gzip", "deflate" or none at all) and will return its output accordingly. All browsers are supported since it's up to the browser to send the correct header saying that it accepts compressed web pages. If a browser doesn't support compressed pages this function returns <b><tt>FALSE</tt></b>. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">buffer</tt></i></span> <dd> <p class="para"> </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">mode</tt></i></span> <dd> <p class="para"> </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> </p> </div> <div class="refsect1 changelog"> <h3 class="title">ChangeLog</h3> <p class="para"> <table class="informaltable"> <colgroup> <thead valign="middle"> <tr valign="middle"> <th colspan="1">Version</th> <th colspan="1">Description</th> </tr> </thead> <tbody valign="middle" class="tbody"> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">4.0.5</td> <td colspan="1" rowspan="1" align="left"> The <i><tt class="parameter">mode</tt></i> parameter was added. </td> </tr> </tbody> </colgroup> </table> </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 <b>ob_gzhandler()</b> example</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><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></code></div> </div> </div> </p> </div> <div class="refsect1 notes"> <h3 class="title">Notes</h3> <blockquote><p><b class="note">Note</b>: <b>ob_gzhandler()</b> requires the <a href="ref.zlib.html" class="link">zlib</a> extension. <br /> </p></blockquote> <blockquote><p><b class="note">Note</b>: You cannot use both <b>ob_gzhandler()</b> and <a href="zlib.configuration.html#ini.zlib.output-compression" class="link">zlib.output_compression</a>. Also note that using <a href="zlib.configuration.html#ini.zlib.output-compression" class="link"> zlib.output_compression</a> is preferred over <b>ob_gzhandler()</b>. <br /> </p></blockquote> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="function.ob-start.html" class="function" rel="rdfs-seeAlso">ob_start()</a></li> <li class="member"><a href="function.ob-end-flush.html" class="function" rel="rdfs-seeAlso">ob_end_flush()</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.ob-get-status.html">ob_get_status</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.ob-implicit-flush.html">ob_implicit_flush</a></div> <div class="up"><a href="ref.outcontrol.html">Output Control Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div></body></html>⌨️ 快捷键说明
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