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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.8 $ -->
<section id="pcre.constants">
&reftitle.constants;
&extension.constants;
<table>
<title>PREG constants</title>
<tgroup cols="2">
<thead>
<row>
<entry>constant</entry>
<entry>description</entry>
</row>
</thead>
<tbody>
<row>
<entry>PREG_PATTERN_ORDER</entry>
<entry>
Orders results so that $matches[0] is an array of full pattern
matches, $matches[1] is an array of strings matched by the first
parenthesized subpattern, and so on. This flag is only used with
<function>preg_match_all</function>.
</entry>
</row>
<row>
<entry>PREG_SET_ORDER</entry>
<entry>
Orders results so that $matches[0] is an array of first set of
matches, $matches[1] is an array of second set of matches, and so
on. This flag is only used with <function>preg_match_all</function>.
</entry>
</row>
<row>
<entry>PREG_OFFSET_CAPTURE</entry>
<entry>
See the description of
<constant>PREG_SPLIT_OFFSET_CAPTURE</constant>. This flag is
available since PHP 4.3.0.
</entry>
</row>
<row>
<entry>PREG_SPLIT_NO_EMPTY</entry>
<entry>
This flag tells <function>preg_split</function> to return only non-empty
pieces.
</entry>
</row>
<row>
<entry>PREG_SPLIT_DELIM_CAPTURE</entry>
<entry>
This flag tells <function>preg_split</function> to capture
parenthesized expression in the delimiter pattern as well. This flag
is available since PHP 4.0.5.
</entry>
</row>
<row>
<entry>PREG_SPLIT_OFFSET_CAPTURE</entry>
<entry>
If this flag is set, for every occurring match the appendant string
offset will also be returned. Note that this changes the return
values in an array where every element is an array consisting of the
matched string at offset 0 and its string offset within subject at
offset 1. This flag is available since PHP 4.3.0
and is only used for <function>preg_split</function>.
</entry>
</row>
</tbody>
</tgroup>
</table>
</section>
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