| Answer |
| · What is PHP? PHP, which stands for "PHP: Hypertext Preprocessor" is a widely-used Open Source general-purpose scripting language that is especially suited for Web development and can be embedded into HTML.
Its syntax draws upon C, Java, and Perl, and is easy to learn. The main goal of the language is to allow web developers to write dynamically generated webpages quickly, but you can do much more with PHP. [ Back to Top ]
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| · What does PHP stand for?
PHP stands for PHP: Hypertext Preprocessor.
This confuses many people because the first word of the acronym is
the acronym. This type of acronym is called a recursive acronym.
The curious can visit
Free On-Line Dictionary of Computing
for more information on recursive acronyms.
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| · What is the relation between the versions?
PHP/FI 2.0 is an early and no longer supported version of PHP. PHP 3
is the successor to PHP/FI 2.0 and is a lot nicer. PHP 4 is the current
generation of PHP, which uses the Zend
engine under the hood. PHP 5 uses Zend engine 2 which, among other
things, offers many additional OOP
features. PHP 5 is experimental.
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| · Can I run several versions of PHP at the same time? Yes. See the INSTALL file that is included in the PHP 4 source distribution [ Back to Top ]
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| · What are the differences between PHP 3 and PHP 4?
There are a couple of articles
written on this by the authors of PHP 4. Here's a list of some of
the more important new features:
Extended API module Generalized build process under UNIX Generic web server interface that also supports
multi-threaded web servers Improved syntax highlighter Native HTTP session support Output buffering support More powerful configuration system Reference counting
Please see the What's new in
PHP 4 overview for a detailed explanation of these
features and more. If you're migrating from PHP 3 to PHP 4,
also read the related appendix.
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| · I think I found a bug! Who should I tell?
You should go to the PHP Bug Database and make sure the bug
isn't a known bug. If you don't see it in the database, use
the reporting form to report the bug. It is important to use
the bug database instead of just sending an email to one of the
mailing lists because the bug will have a tracking number assigned
and it will then be possible for you to go back later and check
on the status of the bug. The bug database can be found at
http://bugs.php.net/.
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