php-doc-en/reference/regex/functions/spliti.xml

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<refentry xmlns="http://docbook.org/ns/docbook" xml:id="function.spliti">
 <refnamediv>
  <refname>spliti</refname>
  <refpurpose>Split string into array by regular expression case insensitive</refpurpose>
 </refnamediv>
 
 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>array</type><methodname>spliti</methodname>
   <methodparam><type>string</type><parameter>pattern</parameter></methodparam>
   <methodparam><type>string</type><parameter>string</parameter></methodparam>
   <methodparam choice="opt"><type>int</type><parameter>limit</parameter></methodparam>
  </methodsynopsis>
  <para>
   Splits a <parameter>string</parameter> into array by regular expression.
  </para>
  <para>
   This function is identical to <function>split</function> except that this
   ignores case distinction when matching alphabetic characters.
  </para>
  &warn.deprecated.function-5-3-0.removed-6-0-0;
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <para>
   <variablelist>
    <varlistentry>
     <term><parameter>pattern</parameter></term>
     <listitem>
      <para>
       Case insensitive regular expression.
      </para>
      <para>
       If you want to split on any of the characters which are considered
       special by regular expressions, you'll need to escape them first. If
       you think <function>spliti</function> (or any other regex function, for
       that matter) is doing something weird, please read the file
       <filename>regex.7</filename>, included in the 
       <filename>regex/</filename> subdirectory of the PHP distribution. It's
       in manpage format, so you'll want to do something along the lines of
       <command>man /usr/local/src/regex/regex.7</command> in order to read it.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>string</parameter></term>
     <listitem>
      <para>
       The input string.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
     <term><parameter>limit</parameter></term>
     <listitem>
      <para>
       If <parameter>limit</parameter> is set, the returned array will
       contain a maximum of <parameter>limit</parameter> elements with the
       last element containing the whole rest of
       <parameter>string</parameter>.
      </para>
     </listitem>
    </varlistentry>
   </variablelist>
  </para>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Returns an array of strings, each of which is a substring of
   <parameter>string</parameter> formed by splitting it on boundaries formed
   by the case insensitive regular expression <parameter>pattern</parameter>.
  </para>
  <para>
   If there are <replaceable>n</replaceable> occurrences of
   <parameter>pattern</parameter>, the returned array will contain
   <literal><replaceable>n</replaceable>+1</literal> items. For example, if
   there is no occurrence of <parameter>pattern</parameter>, an array with
   only one element will be returned. Of course, this is also true if
   <parameter>string</parameter> is empty. If an error occurs,
   <function>spliti</function> returns &false;.
  </para>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <para>
   This example splits a string using 'a' as the separator :
   <example>
    <title><function>spliti</function> example</title>
    <programlisting role="php">
<![CDATA[
<?php
$string = "aBBBaCCCADDDaEEEaGGGA";
$chunks = spliti ("a", $string, 5);
print_r($chunks);
?>
]]>
    </programlisting>
    &example.outputs;
    <screen>
<![CDATA[
Array
(
  [0] =>
  [1] => BBB
  [2] => CCC
  [3] => DDD
  [4] => EEEaGGGA
)
]]>
    </screen>
   </example>
  </para>
 </refsect1>

 <refsect1 role="notes">
  &reftitle.notes;
  &note.regex.deprecated;
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>preg_split</function></member>
    <member><function>split</function></member>
    <member><function>explode</function></member>
    <member><function>implode</function></member>
   </simplelist>
  </para>
 </refsect1>

</refentry>

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