What does PHP stand for?
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What is the relation between the versions? Can I run several versions of PHP at the same time?
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9.1 General Information
9 FAQ : Foire Aux Questions
 Manuel PHP

What is PHP?
What does PHP stand for?
->What is the relation between the versions?
Can I run several versions of PHP at the same time?
What are the differences between PHP 3 and PHP 4?
I think I found a bug! Who should I tell?

9.1.3 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 latest generation of PHP, which uses the Zend engine under the hood.

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What does PHP stand for? General Information Can I run several versions of PHP at the same time?