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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