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<title>Finds position of last occurrence of a string within another, case insensitive</title>
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<h1 class="refname">mb_strripos</h1>
<p class="verinfo">(PHP 5 >= 5.2.0)</p><p class="refpurpose"><span class="refname">mb_strripos</span> — <span class="dc-title">Finds position of last occurrence of a string within another, case insensitive</span></p>
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<div class="refsect1 description" id="refsect1-function.mb-strripos-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">int</span> <span class="methodname"><strong>mb_strripos</strong></span>
( <span class="methodparam"><span class="type">string</span> <code class="parameter">$haystack</code></span>
, <span class="methodparam"><span class="type">string</span> <code class="parameter">$needle</code></span>
[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$offset</code><span class="initializer"> = 0</span></span>
[, <span class="methodparam"><span class="type">string</span> <code class="parameter">$encoding</code><span class="initializer"> = mb_internal_encoding()</span></span>
]] )</div>
<p class="para rdfs-comment">
<span class="function"><strong>mb_strripos()</strong></span> performs multi-byte safe
<span class="function"><a href="function.strripos.html" class="function">strripos()</a></span> operation based on
number of characters. <em><code class="parameter">needle</code></em> position is
counted from the beginning of
<em><code class="parameter">haystack</code></em>. First character's position is
0. Second character position is 1.
Unlike <span class="function"><a href="function.mb-strrpos.html" class="function">mb_strrpos()</a></span>,
<span class="function"><strong>mb_strripos()</strong></span> is case-insensitive.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.mb-strripos-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<span class="term"><em><code class="parameter">haystack</code></em></span>
<dd>
<p class="para">
The string from which to get the position of the last occurrence
of <em><code class="parameter">needle</code></em>
</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">needle</code></em></span>
<dd>
<p class="para">
The string to find in <em><code class="parameter">haystack</code></em>
</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">offset</code></em></span>
<dd>
<p class="para">
The position in <em><code class="parameter">haystack</code></em>
to start searching
</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">encoding</code></em></span>
<dd>
<p class="para">
Character encoding name to use.
If it is omitted, internal character encoding is used.
</p>
</dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.mb-strripos-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Return the numeric position of
the last occurrence of <em><code class="parameter">needle</code></em> in the
<em><code class="parameter">haystack</code></em> string, or <strong><code>FALSE</code></strong>
if <em><code class="parameter">needle</code></em> is not found.
</p>
</div>
<div class="refsect1 seealso" id="refsect1-function.mb-strripos-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"> <span class="function"><a href="function.strripos.html" class="function" rel="rdfs-seeAlso">strripos()</a> - Find the position of the last occurrence of a case-insensitive substring in a string</span></li>
<li class="member"> <span class="function"><a href="function.strrpos.html" class="function" rel="rdfs-seeAlso">strrpos()</a> - Find the position of the last occurrence of a substring in a string</span></li>
<li class="member"> <span class="function"><a href="function.mb-strrpos.html" class="function" rel="rdfs-seeAlso">mb_strrpos()</a> - Find position of last occurrence of a string in a string</span></li>
</ul>
</p>
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