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LinuxPlanet: PHP 4.0: Dynamic Content for the Web Warrior

May 25, 2000, 18:56 (4 Talkback[s])
(Other stories by Paul Ferris)

[ Thanks to Kevin Reichard for this link. ]

"PHP 4.0 is not a trivial upgrade to an existing product--it's a total re-write with backward compatibility to the 3.x technology. It's actually quite a feat, because they kept the compatibility with version 3.x, but made some radical changes under the hood. First and foremost, the 3.x product was really an interpreted language, each line of code was evaluated during the execution of the server side page."

"With version 4.0, the functional difference is actually quite staggering--the server actually compiles the code on the fly, and then executes the code, with dramatic improvements in speed as you can guess."

"There's actually more to it than this. Zend Technologies now provides an optimizer (not a free product, by the way--they have to make a living somehow) for people who have created massive PHP projects and want to create more efficient code bases."

"As if that's not enough, PHP has been separated completely from Apache, so that the language itself can be embedded into other products that need scripting languages. This is absolutely awesome news, as far as I'm concerned. Possibly even bigger news that PHP 4.0 itself."

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