A solid 3 years after PHP5 was released, The PHP Group has finally announced that support for PHP4 will henceforth be discontinued.

In those three years it has seen many improvements over PHP 4. PHP 5 is fast, stable & production-ready and as PHP 6 is on the way, PHP 4 will be discontinued.

The PHP development team hereby announces that support for PHP 4 will continue until the end of this year only. After 2007-12-31 there will be no more releases of PHP 4.4. We will continue to make critical security fixes available on a case-by-case basis until 2008-08-08. Please use the rest of this year to make your application suitable to run on PHP 5.

Already, several web projects using PHP have announced their intention to switch to PHP5 soon. These include: The Symfony, Typo3, phpMyAdmin, Drupal, Propel, and Doctrine project.

With this new announcement, it is expected that many more web hosts will upgrade their Linux server currently using PH4, to PHP5.

This vicious circle has been going on for sometime now but its about to stop, come 5th February 2008.

PHP5, a successor of PHP4 was launched about 3 years ago but has not witnessed widespread use mostly due to its incompatibility with PHP4. Most scripts and software today are written in PHP4 even though PHP5 comes with vast improvements including better security and improved functionality. The PHP Group has thus been forced to continue offering support to users still on PHP4.

This is about to change though. An organization was formed, exlcusively for that:GoPHP5.org The objective is simple, gather more support for PHP5, and make sure most software required PHP5, by February 5th 2008. In their words:

It is a dangerous cycle, and one that needs to be broken. The PHP developer community has decided that it is indeed now time to move forward, together. Therefore, the listed software projects have all agreed that effective February 5th, 2008, any new feature releases will have a minimum version requirement of at least PHP 5.2.0. Furthermore, the listed web hosts have agreed that effective February 5th, 2008, they will include PHP 5.2 (or a more recent version) in their service offer.

The news this week though, is that some leading PHP software have joined the massive effort to switch to the latest PHP upgrade. The Symfony, Typo3, phpMyAdmin, Drupal, Propel, and Doctrine projects have all announced that their next release after February 5, 2008 will require PHP version 5.2 as part of a coordinated effort at GoPHP5.org, and have issued an open invitation to any other PHP projects and applications, both open source and proprietary, that want to participate in the effort.

According to phpMyAdmin’s project lead, Marc Delisle: “The phpMyAdmin project is very enthusiastic to join the GoPHP5 initiative. We see GoPHP5 as a way both to improve our product’s new versions — not always having to add workarounds to remain PHP4­compatible — and improve the experience of our users — by projecting the correct message about the PHP system itself and its evolution.”

The first-ever version of PHP appeared on 8th June 1995 and as of October 2006, PHP6 is under-development.