1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision: 297028 $ -->
<!-- Purpose: basic.text -->
<!-- Membership: core -->
<book xml:id="book.regex" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
<title>Regular Expression (POSIX Extended)</title>
<titleabbrev>POSIX Regex</titleabbrev>
<preface xml:id="intro.regex">
&reftitle.intro;
<tip>
<para>
PHP also supports regular expressions using a Perl-compatible syntax
using the <link linkend="book.pcre">PCRE functions</link>. Those functions
support non-greedy matching, assertions, conditional subpatterns, and a
number of other features not supported by the POSIX-extended regular
expression syntax.
</para>
</tip>
<warning>
<para>
These regular expression functions are not binary-safe. The <link
linkend="book.pcre">PCRE functions</link> are.
</para>
</warning>
<note>
<para>
As of PHP 5.3.0 this extension is deprecated, calling any function
provided by this extension will issue an <constant>E_DEPRECATED</constant>
notice.
</para>
</note>
<para>
Regular expressions are used for complex string manipulation.
PHP uses the POSIX extended regular expressions as defined by POSIX
1003.2. For a full description of POSIX regular expressions see the <link xlink:href="&url.regex.man;">regex
man pages</link> included in the regex directory in 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>
</preface>
&reference.regex.setup;
&reference.regex.constants;
&reference.regex.examples;
&reference.regex.reference;
</book>
<!-- Keep this comment at the end of the file
Local variables:
mode: sgml
sgml-omittag:t
sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
indent-tabs-mode:nil
sgml-parent-document:nil
sgml-default-dtd-file:"~/.phpdoc/manual.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:nil
sgml-local-ecat-files:nil
End:
vim600: syn=xml fen fdm=syntax fdl=2 si
vim: et tw=78 syn=sgml
vi: ts=1 sw=1
-->
|
