📄 function.mb-output-handler.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>Callback function converts character encoding in 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.mb-list-encodings.html">mb_list_encodings</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.mb-parse-str.html">mb_parse_str</a></div> <div class="up"><a href="ref.mbstring.html">Multibyte String Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.mb-output-handler" class="refentry"> <div class="refnamediv"> <h1 class="refname">mb_output_handler</h1> <p class="verinfo">(PHP 4 >= 4.0.6, PHP 5)</p><p class="refpurpose"><span class="refname">mb_output_handler</span> — <span class="dc-title">Callback function converts character encoding in 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>mb_output_handler</b></b></span> ( <span class="methodparam"><span class="type">string</span> <tt class="parameter">$contents</tt></span> , <span class="methodparam"><span class="type">int</span> <tt class="parameter">$status</tt></span> )</div> <p class="para rdfs-comment"> <b>mb_output_handler()</b> is <a href="function.ob-start.html" class="function">ob_start()</a> callback function. <b>mb_output_handler()</b> converts characters in the output buffer from internal character encoding to HTTP output character encoding. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">contents</tt></i></span> <dd> <p class="para"> The contents of the output buffer. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">status</tt></i></span> <dd> <p class="para"> The status of the output buffer. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> The converted <a href="language.types.string.html" class="type string">string</a>. </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">4.1.0</td> <td colspan="1" rowspan="1" align="left"> <p class="para"> This handler now adds the charset HTTP header when the following conditions are met: </p> <p class="para"> <ul class="itemizedlist"> <li class="listitem"> <span class="simpara"> Does not set <i>Content-Type</i>, using <a href="function.header.html" class="function">header()</a>. </span> </li> <li class="listitem"> <span class="simpara"> The default MIME type begins with <i>text/</i>. </span> </li> <li class="listitem"> <span class="simpara"> The <a href="mbstring.configuration.html#ini.mbstring.http-input" class="link">mbstring.http_input</a> setting is something other than <i>pass</i>. </span> </li> </ul> </p> </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>mb_output_handler()</b> example</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br />mb_http_output</span><span style="color: #007700">(</span><span style="color: #DD0000">"UTF-8"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">ob_start</span><span style="color: #007700">(</span><span style="color: #DD0000">"mb_output_handler"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span></span></code></div> </div> </div> </p> </div> <div class="refsect1 notes"> <h3 class="title">Notes</h3> <blockquote><p><b class="note">Note</b>: If you want to output some binary data such as image from PHP script with PHP 4.3.0 or later, Content-Type: header must be send using <a href="function.header.html" class="function">header()</a> before any binary data was send to client (e.g. header("Content-Type: image/png")). If Content-Type: header was send, output character encoding conversion will not be performed. <br /> Note that if 'Content-Type: text/*' was send using <a href="function.header.html" class="function">header()</a>, the sending data is regarded as text, encoding conversion will be performed using character encoding settings. <br /> If you want to output some binary data such as image from PHP script with PHP 4.2.x or earlier, you must set output encoding to "pass" using <a href="function.mb-http-output.html" class="function">mb_http_output()</a>. <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> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.mb-list-encodings.html">mb_list_encodings</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.mb-parse-str.html">mb_parse_str</a></div> <div class="up"><a href="ref.mbstring.html">Multibyte String 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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