1 

E_ERROR 

Fatal run-time errors. Errors that cannot be recovered from. Execution of the script is halted 

2 

E_WARNING 

Non-fatal run-time errors. Execution of the script is not halted 

4 

E_PARSE 

Compile-time parse errors. Parse errors should only be generated by the parser 

8 

E_NOTICE 

Run-time notices. The script found something that might be an error, but could also happen when running a script normally 

16 

E_CORE_ERROR 

Fatal errors at PHP startup. This is like an E_ERROR in the PHP core 

4 

32 

E_CORE_WARNING 

Non-fatal errors at PHP startup. This is like an E_WARNING in the PHP core 

4 

64 

E_COMPILE_ERROR 

Fatal compile-time errors. This is like an E_ERROR generated by the Zend Scripting Engine 

4 

128 

E_COMPILE_WARNING 

Non-fatal compile-time errors. This is like an E_WARNING generated by the Zend Scripting Engine 

4 

256 

E_USER_ERROR 

Fatal user-generated error. This is like an E_ERROR set by the programmer using the PHP function trigger_error() 

4 

512 

E_USER_WARNING 

Non-fatal user-generated warning. This is like an E_WARNING set by the programmer using the PHP function trigger_error() 

4 

1024 

E_USER_NOTICE 

User-generated notice. This is like an E_NOTICE set by the programmer using the PHP function trigger_error() 

4 

2048 

E_STRICT 

Run-time notices. PHP suggest changes to your code to help interoperability and compatibility of the code 

5 

4096 

E_RECOVERABLE_ERROR 

Catchable fatal error. This is like an E_ERROR but can be caught by a user defined handle (see also set_error_handler()) 

5 

8191 

E_ALL 

All errors and warnings, except of level E_STRICT 

5