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Core PHP Programming, Third Edition by Leon Atkinson

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8.2. Pregenerated Constants

DEFAULT_INCLUDE_PATH

This constant contains the paths used by include, include_once, require, and require_once.

__CLASS__

This constant returns the name of the class in which the executing code is. It is an empty string when used outside a class.

E_ALL

This constant represents error messages of all levels.

E_COMPILE_ERROR

This constant represents an error encountered when the Zend Engine attempts to compile the page.

E_COMPILE_WARNING

This constant represents a problem encountered by the Zend Engine that doesn't halt compilation.

E_CORE_ERROR

This constant represents an error generated by PHP's core.

E_CORE_WARNING

This constant represents a warning generated by PHP's core.

E_ERROR

This constant represents an error ...

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