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Removing duplicated para text, moving major one to the
start of the file git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@59928 c90b9560-bf6c-de11-be94-00142212c4b1
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<?xml encoding="iso-8859-1"?>
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<!-- $Revision: 1.12 $ -->
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<!-- $Revision: 1.13 $ -->
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<appendix id="migration4">
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<title>Migrating from PHP 3.0 to PHP 4.0</title>
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<simpara>
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Migration from PHP 3 to PHP 4 is relatively easy, and should
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not require you to change your code in any way. There are
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minor incompatibilities between the two versions. You may want
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to check the incompatibilities list to make sure that you're
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indeed not affected by them (the chances you're affected by
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these incompatibilities are extremely slim).
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</simpara>
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<section id='migration4.changes'>
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<title>What has changed in PHP 4.0</title>
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<para>
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PHP 4.0 and the integrated Zend engine have greatly inproved PHPs
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performance and capabilities, but great care has been taken to
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break as little existing code as possible. So migrating your code
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from PHP 3.0 to 4.0 should be much easier than migrating from
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PHP/FI 2.0 to PHP 3.0. A lot of existing PHP 3.0 code should be
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ready to run without changes, but you should still know about the
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few differences and take care to test your code before switching
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versions in production environments. The following should give you
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some hints about what to look for.
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</para>
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</section>
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<section id="migration4.php4.with.php3">
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<title>Running PHP 3 and PHP 4 concurrently</title>
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<simpara>
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@ -115,21 +121,6 @@ php_admin_flag [PHP directive name] [On|Off]
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</simpara>
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</section>
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<section id='migration4.changes'>
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<title>What has changed in PHP 4.0</title>
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<para>
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PHP 4.0 and the integrated Zend engine have greatly inproved PHPs
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performance and capabilities, but great care has been taken to
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break as little existing code as possible. So migrating your code
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from PHP 3.0 to 4.0 should be much easier than migrating from
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PHP/FI 2.0 to PHP 3.0. A lot of existing PHP 3.0 code should be
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ready to run without changes, but you should still know about the
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few differences and take care to test your code before switching
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versions in production environments. The following should give you
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some hints about what to look for.
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</para>
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</section>
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<section id='migration4.parser'>
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<title>Parser behavior</title>
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<para>
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