mirror of
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Jakub Vrana
16622da7f4
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@161335 c90b9560-bf6c-de11-be94-00142212c4b1
87 lines
2.2 KiB
XML
Executable File
87 lines
2.2 KiB
XML
Executable File
<?xml version="1.0" encoding="iso-8859-1"?>
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<!-- $Revision: 1.11 $ -->
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<chapter id="faq.migration4">
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<title>Migrating from PHP 3 to PHP 4</title>
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<titleabbrev>Migrating from PHP 3 to PHP 4</titleabbrev>
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<para>
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PHP has already a long history behind him :
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Legendary PHP 1.0, PHP/FI, PHP 3.0 and PHP 4.0.
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</para>
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<qandaset>
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<qandaentry id="faq.migration4.php34">
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<question>
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<para>
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Migrating from PHP 3 to PHP 4
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</para>
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</question>
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<answer>
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<para>
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PHP 4 was designed to be as compatible with earlier versions of
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PHP as possible and very little functionality was broken in the
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process. If you're really unsure about compatibility you should
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install PHP 4 in a test environment and run your scripts there.
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</para>
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<para>
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Also see the <link linkend="migration4">appropriate migration
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appendix</link> of this manual.
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</para>
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</answer>
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</qandaentry>
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<qandaentry id="faq.migration4.sessions">
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<question>
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<para>
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Do sessions work in PHP 3?
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</para>
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</question>
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<answer>
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<para>
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Although <link linkend="ref.session">native session support</link>
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didn't exist in PHP 3, there are third-party applications that did
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(and still do) offer session functionality. The most common method
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was by using <ulink url="&url.phplib;">PHPLIB</ulink>.
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</para>
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</answer>
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</qandaentry>
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<qandaentry id="faq.migration4.incompatible">
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<question>
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<para>
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Incompatible functions?
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</para>
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</question>
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<answer>
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<para>
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Since PHP 4 is basically a rewrite of the entire PHP engine there
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were very few functions that were altered and only then some of
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the more exotic ones.
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</para>
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</answer>
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</qandaentry>
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</qandaset>
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</chapter>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"../../manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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