<!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>Find position of first occurrence of string in a string</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.mb-strlen.html">mb_strlen</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.mb-strrchr.html">mb_strrchr</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-strpos" class="refentry"> <div class="refnamediv"> <h1 class="refname">mb_strpos</h1> <p class="verinfo">(PHP 4 >= 4.0.6, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">mb_strpos</span> — <span class="dc-title">Find position of first occurrence of string in a string</span></p> </div> <div class="refsect1 description" id="refsect1-function.mb-strpos-description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">int</span> <span class="methodname"><strong>mb_strpos</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"> Finds position of the first occurrence of a <span class="type"><a href="language.types.string.html" class="type string">string</a></span> in a <span class="type"><a href="language.types.string.html" class="type string">string</a></span>. </p> <p class="para"> Performs a multi-byte safe <span class="function"><a href="function.strpos.html" class="function">strpos()</a></span> operation based on number of characters. The first character's position is 0, the second character position is 1, and so on. </p> </div> <div class="refsect1 parameters" id="refsect1-function.mb-strpos-parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <code class="parameter">haystack</code></dt> <dd> <p class="para"> The <span class="type"><a href="language.types.string.html" class="type string">string</a></span> being checked. </p> </dd> <dt> <code class="parameter">needle</code></dt> <dd> <p class="para"> The string to find in <code class="parameter">haystack</code>. In contrast with <span class="function"><a href="function.strpos.html" class="function">strpos()</a></span>, numeric values are not applied as the ordinal value of a character. </p> </dd> <dt> <code class="parameter">offset</code></dt> <dd> <p class="para"> The search offset. If it is not specified, 0 is used. A negative offset counts from the end of the string. </p> </dd> <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-strpos-returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns the numeric position of the first occurrence of <code class="parameter">needle</code> in the <code class="parameter">haystack</code> <span class="type"><a href="language.types.string.html" class="type string">string</a></span>. If <code class="parameter">needle</code> is not found, it returns <strong><code>FALSE</code></strong>. </p> </div> <div class="refsect1 changelog" id="refsect1-function.mb-strpos-changelog"> <h3 class="title">Changelog</h3> <table class="doctable informaltable"> <thead> <tr> <th>Version</th> <th>Description</th> </tr> </thead> <tbody class="tbody"> <tr> <td>7.1.0</td> <td> Support for negative <code class="parameter">offset</code>s has been added. </td> </tr> </tbody> </table> </div> <div class="refsect1 seealso" id="refsect1-function.mb-strpos-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.strpos.html" class="function" rel="rdfs-seeAlso">strpos()</a> - Find the position of the first occurrence of a substring in a string</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-strlen.html">mb_strlen</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.mb-strrchr.html">mb_strrchr</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>