PHP FAQ

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What is PHP?

PHP is a widely-used general-purpose scripting language that is especially suited for Web development and can be embedded into HTML.

Where can I learn more about PHP?

Online resources:

The official PHP Homepage with documentation, tutorials, FAQ, etc.
The W3Schools PHP Tutorial is a great way to learn about PHP by example.

Books:

PHP Cookbook by David Sklar and Adam Trachtenberg.
PHP in Action by Dagfinn Reiersøl with Marcus Baker and Chris Shiflett. (Book review on Slashdot.)

How is PHP used by Moodle?

Installing Moodle/Creating custom php.ini files
PHP settings by Moodle version
PHP error logs
php.ini related discussions in the Moodle forums

Which version of PHP is required by Moodle?

See Installing_Moodle#Requirements.
You can tell which version you are using by looking at PHP info.

How do I install PHP?

Usually PHP is installed alongside Apache and MySQL in a combination known as AMP, see Installing AMP for details. It is possible to build PHP from source - you might have to if you need a very new version for developing Moodle - however, it is quite challenging. PHP itself has many dependencies that you will need to obtain and build, some of which are also tricky to build from source (e.g. GD).

Siehe auch

Documentation