function.mb-encode-mimeheader.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>Encode string for MIME header</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-detect-order.html">mb_detect_order</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.mb-encode-numericentity.html">mb_encode_numericentity</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-encode-mimeheader" class="refentry"> <div class="refnamediv"> <h1 class="refname">mb_encode_mimeheader</h1> <p class="verinfo">(PHP 4 >= 4.0.6, PHP 5)</p><p class="refpurpose"><span class="refname">mb_encode_mimeheader</span> — <span class="dc-title">Encode string for MIME header</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_encode_mimeheader</b></b></span> ( <span class="methodparam"><span class="type">string</span> <tt class="parameter">$str</tt></span> [, <span class="methodparam"><span class="type">string</span> <tt class="parameter">$charset</tt></span> [, <span class="methodparam"><span class="type">string</span> <tt class="parameter">$transfer_encoding</tt></span> [, <span class="methodparam"><span class="type">string</span> <tt class="parameter">$linefeed</tt></span> [, <span class="methodparam"><span class="type">int</span> <tt class="parameter">$indent</tt></span> ]]]] )</div> <p class="para rdfs-comment"> Encodes a given <a href="language.types.string.html" class="type string">string</a> <i><tt class="parameter">str</tt></i> by the MIME header encoding scheme. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">str</tt></i></span> <dd> <p class="para"> The <a href="language.types.string.html" class="type string">string</a> being encoded. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">charset</tt></i></span> <dd> <p class="para"> <i><tt class="parameter">charset</tt></i> specifies the name of the character set in which <i><tt class="parameter">str</tt></i> is represented in. The default value is determined by the current NLS setting (<i>mbstring.language</i>). </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">transfer_encoding</tt></i></span> <dd> <p class="para"> <i><tt class="parameter">transfer_encoding</tt></i> specifies the scheme of MIME encoding. It should be either <i>"B"</i> (Base64) or <i>"Q"</i> (Quoted-Printable). Falls back to <i>"B"</i> if not given. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">linefeed</tt></i></span> <dd> <p class="para"> <i><tt class="parameter">linefeed</tt></i> specifies the EOL (end-of-line) marker with which <b>mb_encode_mimeheader()</b> performs line-folding (a <a href="http://www.faqs.org/rfcs/rfc2822" class="link external">» RFC</a> term, the act of breaking a line longer than a certain length into multiple lines. The length is currently hard-coded to 74 characters). Falls back to <i>"\r\n"</i> (CRLF) if not given. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">indent</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"> A converted version of the <a href="language.types.string.html" class="type string">string</a> represented in ASCII. </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">5.0.0</td> <td colspan="1" rowspan="1" align="left"> The <i><tt class="parameter">indent</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>mb_encode_mimeheader()</b> example</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br />$name </span><span style="color: #007700">= </span><span style="color: #DD0000">""</span><span style="color: #007700">; </span><span style="color: #FF8000">// kanji<br /></span><span style="color: #0000BB">$mbox </span><span style="color: #007700">= </span><span style="color: #DD0000">"kru"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$doma </span><span style="color: #007700">= </span><span style="color: #DD0000">"gtinn.mon"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$addr </span><span style="color: #007700">= </span><span style="color: #0000BB">mb_encode_mimeheader</span><span style="color: #007700">(</span><span style="color: #0000BB">$name</span><span style="color: #007700">, </span><span style="color: #DD0000">"UTF-7"</span><span style="color: #007700">, </span><span style="color: #DD0000">"Q"</span><span style="color: #007700">) . </span><span style="color: #DD0000">" <" </span><span style="color: #007700">. </span><span style="color: #0000BB">$mbox </span><span style="color: #007700">. </span><span style="color: #DD0000">"@" </span><span style="color: #007700">. </span><span style="color: #0000BB">$doma </span><span style="color: #007700">. </span><span style="color: #DD0000">">"</span><span style="color: #007700">;<br />echo </span><span style="color: #0000BB">$addr</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>: This function isn't designed to break lines at higher-level contextual break points (word boundaries, etc.). This behaviour may clutter up the original string with unexpected spaces. <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.mb-decode-mimeheader.html" class="function" rel="rdfs-seeAlso">mb_decode_mimeheader()</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-detect-order.html">mb_detect_order</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.mb-encode-numericentity.html">mb_encode_numericentity</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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