mb-substr-count.xml

<?xml version="1.0" encoding="utf-8"?>
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<refentry xml:id="function.mb-substr-count" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
 <refnamediv>
  <refname>mb_substr_count</refname>
  <refpurpose>Count the number of substring occurrences</refpurpose>
 </refnamediv>
   
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>int</type><methodname>mb_substr_count</methodname>
   <methodparam><type>string</type><parameter>haystack</parameter></methodparam>
   <methodparam><type>string</type><parameter>needle</parameter></methodparam>
   <methodparam choice="opt"><type class="union"><type>string</type><type>null</type></type><parameter>encoding</parameter><initializer>&null;</initializer></methodparam>
  </methodsynopsis>
  <para>
   Counts the number of times the
   <parameter>needle</parameter> substring occurs in the
   <parameter>haystack</parameter> <type>string</type>.
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>haystack</parameter></term>
     <listitem>
      <para>
       The <type>string</type> being checked.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>needle</parameter></term>
     <listitem>
      <para>
       The <type>string</type> being found.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>encoding</parameter></term>
     <listitem>
      &mbstring.encoding.parameter;
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   The number of times the
   <parameter>needle</parameter> substring occurs in the
   <parameter>haystack</parameter> <type>string</type>.
  </para>
 </refsect1>

 <refsect1 role="changelog">
  &reftitle.changelog;
  <informaltable>
   <tgroup cols="2">
    <thead>
     <row>
      <entry>&Version;</entry>
      <entry>&Description;</entry>
     </row>
    </thead>
    <tbody>
     &mbstring.changelog.encoding-nullable;
    </tbody>
   </tgroup>
  </informaltable>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   <example>
    <title><function>mb_substr_count</function> example</title>
    <programlisting role="php">
<![CDATA[
<?php
echo mb_substr_count("This is a test", "is"); // prints out 2
?>
]]>
    </programlisting>
   </example>
  </para>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>mb_strpos</function></member>
    <member><function>mb_substr</function></member>
    <member><function>substr_count</function></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>
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