PHP-manual
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44
.
General
Information
1.
What is PHP?
2.
What does PHP stand for?
3.
What is the relation between the versions?
4.
Can I run several versions of PHP at the same time?
5.
What are the differences between PHP 3 and PHP 4?
6.
I think I found a bug! Who should I tell?
.
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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