Installing and Configuring PHP
Chapter 3: Installing and Configuring PHP
In the last of the three installation-related chapters, you will acquire, install, and configure PHP and make some basic changes to your Apache installation. In this chapter, you will learn
How to install PHP with Apache on Linux/Unix
How to install PHP with Apache server on Windows
How to test your PHP installation
How to find help when things go wrong
The basics of the PHP language
Current and Future Versions of PHP
The installation instructions in this chapter refer to PHP version 4.3.3, which is the current version of the software. The PHP Group uses minor release numbers for updates containing security enhancements or bug fixes. Minor releases do not follow a set release schedule; when enhancements or fixes are added to the code and thoroughly tested, the PHP Group will releases a new version, with a new minor version number.
It is possible that by the time you purchase this book, the minor version number will have changed, to 4.3.4 or beyond. If that is the case, you should read the list of changes at http://www.php.net/ChangeLog-4.php for any changes regarding the installation or configuration process, which makes up the bulk of this chapter.
Although it is unlikely that any installation instructions will change between minor version updates, you should get in the habit of always checking the changelog of software that you install and maintain. If a minor version change does occur during the time you are reading this book, but no installation changes are noted in the changelog, simply make a mental note and substitute the new version number wherever it appears in the installation instructions and accompanying figures.
For instructions on installing PHP from the CD, please refer to Appendix A, "Installing MySQL, Apache, and PHP from the CD-ROM."