php-doc-en/reference/pcre/configure.xml
Christoph Michael Becker 03cde96680 Update PCRE installation page
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@351360 c90b9560-bf6c-de11-be94-00142212c4b1
2020-11-11 18:11:49 +00:00

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<?xml version="1.0" encoding="utf-8"?>
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<section xml:id="pcre.installation" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
&reftitle.install;
<para>
The PCRE extension is a core PHP extension, so it is always enabled.
By default, this extension is compiled using the bundled PCRE
library. Alternatively, an external PCRE library can be used by
passing in the <option role="configure">--with-pcre-regex=DIR</option>
configuration option where <literal>DIR</literal> is the location of
PCRE's include and library files. It is recommended to use PCRE 8.10 or newer;
as of PHP 7.3.0, PCRE2 is required.
</para>
<para>
PCRE's just-in-time compilation is supported by default, which
can be disabled with the <option role="configure">--without-pcre-jit</option>
configuration option as of PHP 7.0.12.
</para>
&windows.builtin;
<para>
PCRE is an active project and as it changes so does the PHP
functionality that relies upon it. It is possible that certain parts
of the PHP documentation is outdated, in that it may not cover the
newest features that PCRE provides. For a list of changes, see the
<link xlink:href="&url.pcre.changelog;">PCRE library changelog</link>
and also the following bundled PCRE history:
</para>
<para>
<table>
<title>Upgrade history of the bundled PCRE library</title>
<tgroup cols="3">
<thead>
<row>
<entry>PHP &Version;</entry>
<entry>Updated PCRE &Version;</entry>
<entry>Notes</entry>
</row>
</thead>
<tbody>
<row>
<entry>7.4.12, 8.0.0</entry>
<entry>10.35</entry>
<entry></entry>
</row>
<row>
<entry>7.4.6</entry>
<entry>10.34</entry>
<entry></entry>
</row>
<row>
<entry>7.4.0</entry>
<entry>10.33</entry>
<entry></entry>
</row>
<row>
<entry>7.3.0</entry>
<entry>10.32</entry>
<entry></entry>
</row>
<row>
<entry>7.2.0</entry>
<entry>8.41</entry>
<entry></entry>
</row>
<row>
<entry>7.0.3</entry>
<entry>8.38</entry>
<entry>See CVE-2015-8383, CVE-2015-8386, CVE-2015-8387, CVE-2015-8389, CVE-2015-8390, CVE-2015-8391, CVE-2015-8393, CVE-2015-8394</entry>
</row>
<row>
<entry>7.0.0</entry>
<entry>8.37</entry>
<entry>See CVE-2015-2325, CVE-2015-2326</entry>
</row>
</tbody>
</tgroup>
</table>
</para>
</section>
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