Extension Categorization State PHP Manual Membership Core Extensions Theseare not actual extensions. They are part of the core and cannot beleft out a binary with compilation options. Polia Classes...

Membership

These are not actual extensions. They are part of the PHP core and cannot be left out of a PHP binary with compilation options.

These extensions are bundled with PHP.

In order to compile these extensions, external libraries will be needed.

These extensions are available from » PECL. More PECL extensions exist but they are not documented in the PHP manual yet.