PHP Installing YAML extension


YAML does not come with a standard PHP installation, instead it needs to be installed as a PECL extension. On linux/unix it can be installed with a simple

pecl install yaml

Note that libyaml-dev package must be installed on the system, as the PECL package is simply a wrapper around libYAML calls.

Installation on Windows machines is different - you can either download a pre-compiled DLL or build from sources.