📄 function.mb-strwidth.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>Return width of string</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-strtoupper.html">mb_strtoupper</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.mb-substitute-character.html">mb_substitute_character</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-strwidth" class="refentry"> <div class="refnamediv"> <h1 class="refname">mb_strwidth</h1> <p class="verinfo">(PHP 4 >= 4.0.6, PHP 5)</p><p class="refpurpose"><span class="refname">mb_strwidth</span> — <span class="dc-title">Return width of string</span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">int</span> <span class="methodname"><b><b>mb_strwidth</b></b></span> ( <span class="methodparam"><span class="type">string</span> <tt class="parameter">$str</tt></span> [, <span class="methodparam"><span class="type">string</span> <tt class="parameter">$encoding</tt></span> ] )</div> <p class="para rdfs-comment"> Returns the width of <a href="language.types.string.html" class="type string">string</a> <i><tt class="parameter">str</tt></i>. </p> <p class="para"> Multi-byte characters are usually twice the width of single byte characters. </p> <p class="para"> <table border="5"> <caption><b>Characters width</b></caption> <colgroup> <thead valign="middle"> <tr valign="middle"> <th colspan="1">Chars</th> <th colspan="1">Width</th> </tr> </thead> <tbody valign="middle" class="tbody"> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">U+0000 - U+0019</td> <td colspan="1" rowspan="1" align="left">0</td> </tr> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">U+0020 - U+1FFF</td> <td colspan="1" rowspan="1" align="left">1</td> </tr> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">U+2000 - U+FF60</td> <td colspan="1" rowspan="1" align="left">2</td> </tr> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">U+FF61 - U+FF9F</td> <td colspan="1" rowspan="1" align="left">1</td> </tr> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">U+FFA0 - </td> <td colspan="1" rowspan="1" align="left">2</td> </tr> </tbody> </colgroup> </table> </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 decoded. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">encoding</tt></i></span> <dd> <p class="para">The <i><tt class="parameter">encoding</tt></i> parameter is the character encoding. If it is omitted, the internal character encoding value will be used.</p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> The width of <a href="language.types.string.html" class="type string">string</a> <i><tt class="parameter">str</tt></i>. </p> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="function.mb-strimwidth.html" class="function" rel="rdfs-seeAlso">mb_strimwidth()</a></li> <li class="member"><a href="function.mb-internal-encoding.html" class="function" rel="rdfs-seeAlso">mb_internal_encoding()</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-strtoupper.html">mb_strtoupper</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.mb-substitute-character.html">mb_substitute_character</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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