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<title>Set/Get character encoding for multibyte regex</title>
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<h1 class="refname">mb_regex_encoding</h1>
<p class="verinfo">(PHP 4 >= 4.2.0, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">mb_regex_encoding</span> — <span class="dc-title">Set/Get character encoding for multibyte regex</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.mb-regex-encoding-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <span class="methodname"><strong>mb_regex_encoding</strong></span>
([ <span class="methodparam"><span class="type">string</span> <code class="parameter">$encoding</code><span class="initializer"> = mb_regex_encoding()</span></span>
] )</div>
<p class="para rdfs-comment">
Set/Get character encoding for a multibyte regex.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.mb-regex-encoding-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<code class="parameter">encoding</code></dt>
<dd>
<p class="para">The <code class="parameter">encoding</code>
parameter is the character encoding. If it is omitted, the internal character
encoding value will be used.</p>
</dd>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.mb-regex-encoding-returnvalues">
<h3 class="title">Return Values</h3>
<p class="simpara">
If <code class="parameter">encoding</code> is set, then
Returns <strong><code>TRUE</code></strong> on success or <strong><code>FALSE</code></strong> on failure.
In this case, the internal character encoding is NOT changed.
If <code class="parameter">encoding</code> is omitted, then
the current character encoding name for a multibyte regex is returned.
</p>
</div>
<div class="refsect1 changelog" id="refsect1-function.mb-regex-encoding-changelog">
<h3 class="title">Changelog</h3>
<p class="para">
<table class="doctable informaltable">
<thead>
<tr>
<th>Version</th>
<th>Description</th>
</tr>
</thead>
<tbody class="tbody">
<tr>
<td>5.6.0</td>
<td>
Default encoding is changed to UTF-8. It was EUC-JP Previously.
</td>
</tr>
</tbody>
</table>
</p>
</div>
<div class="refsect1 seealso" id="refsect1-function.mb-regex-encoding-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<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>
<li class="member"><span class="function"><a href="function.mb-ereg.html" class="function" rel="rdfs-seeAlso">mb_ereg()</a> - Regular expression match with multibyte support</span></li>
</ul>
</p>
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