<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <title>Return width of string</title> </head> <body><div class="manualnavbar" 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" id="refsect1-function.mb-strwidth-description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">int</span> <span class="methodname"><strong>mb_strwidth</strong></span> ( <span class="methodparam"><span class="type">string</span> <code class="parameter">$str</code></span> [, <span class="methodparam"><span class="type">string</span> <code class="parameter">$encoding</code><span class="initializer"> = mb_internal_encoding()</span></span> ] )</div> <p class="para rdfs-comment"> Returns the width of <span class="type"><a href="language.types.string.html" class="type string">string</a></span> <em><code class="parameter">str</code></em>. </p> <p class="para"> Multi-byte characters are usually twice the width of single byte characters. </p> <p class="para"> <table class="doctable table"> <caption><strong>Characters width</strong></caption> <thead> <tr> <th>Chars</th> <th>Width</th> </tr> </thead> <tbody class="tbody"> <tr> <td>U+0000 - U+0019</td> <td>0</td> </tr> <tr> <td>U+0020 - U+1FFF</td> <td>1</td> </tr> <tr> <td>U+2000 - U+FF60</td> <td>2</td> </tr> <tr> <td>U+FF61 - U+FF9F</td> <td>1</td> </tr> <tr> <td>U+FFA0 - </td> <td>2</td> </tr> </tbody> </table> </p> </div> <div class="refsect1 parameters" id="refsect1-function.mb-strwidth-parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><em><code class="parameter">str</code></em></span> <dd> <p class="para"> The <span class="type"><a href="language.types.string.html" class="type string">string</a></span> being decoded. </p> </dd> </dt> <dt> <span class="term"><em><code class="parameter">encoding</code></em></span> <dd> <p class="para">The <em><code class="parameter">encoding</code></em> 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" id="refsect1-function.mb-strwidth-returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> The width of <span class="type"><a href="language.types.string.html" class="type string">string</a></span> <em><code class="parameter">str</code></em>. </p> </div> <div class="refsect1 seealso" id="refsect1-function.mb-strwidth-seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"> <span class="function"><a href="function.mb-strimwidth.html" class="function" rel="rdfs-seeAlso">mb_strimwidth()</a> - Get truncated string with specified width</span></li> <li class="member"> <span class="function"><a href="function.mb-internal-encoding.html" class="function" rel="rdfs-seeAlso">mb_internal_encoding()</a> - Set/Get internal character encoding</span></li> </ul> </p> </div> </div><hr /><div class="manualnavbar" 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>