Predefined Constants
The constants below are always available as part of the PHP core.
Note: You may use these constant names in php.ini but not outside of PHP, like in httpd.conf, where you'd use the bitmask values instead.
| Value | Constant | Description | Note |
|---|---|---|---|
| 1 |
E_ERROR
(integer)
|
Fatal run-time errors. These indicate errors that can not be recovered from, such as a memory allocation problem. Execution of the script is halted. | |
| 2 |
E_WARNING
(integer)
|
Run-time warnings (non-fatal errors). Execution of the script is not halted. | |
| 4 |
E_PARSE
(integer)
|
Compile-time parse errors. Parse errors should only be generated by the parser. | |
| 8 |
E_NOTICE
(integer)
|
Run-time notices. Indicate that the script encountered something that could indicate an error, but could also happen in the normal course of running a script. | |
| 16 |
E_CORE_ERROR
(integer)
|
Fatal errors that occur during PHP's initial startup. This is like an
E_ERROR, except it is generated by the core of PHP.
|
|
| 32 |
E_CORE_WARNING
(integer)
|
Warnings (non-fatal errors) that occur during PHP's initial startup.
This is like an E_WARNING, except it is generated
by the core of PHP.
|
|
| 64 |
E_COMPILE_ERROR
(integer)
|
Fatal compile-time errors. This is like an E_ERROR,
except it is generated by the Zend Scripting Engine.
|
|
| 128 |
E_COMPILE_WARNING
(integer)
|
Compile-time warnings (non-fatal errors). This is like an
E_WARNING, except it is generated by the Zend
Scripting Engine.
|
|
| 256 |
E_USER_ERROR
(integer)
|
User-generated error message. This is like an
E_ERROR, except it is generated in PHP code by
using the PHP function trigger_error().
|
|
| 512 |
E_USER_WARNING
(integer)
|
User-generated warning message. This is like an
E_WARNING, except it is generated in PHP code by
using the PHP function trigger_error().
|
|
| 1024 |
E_USER_NOTICE
(integer)
|
User-generated notice message. This is like an
E_NOTICE, except it is generated in PHP code by
using the PHP function trigger_error().
|
|
| 2048 |
E_STRICT
(integer)
|
Enable to have PHP suggest changes to your code which will ensure the best interoperability and forward compatibility of your code. | Since PHP 5 but not included in E_ALL until PHP 5.4.0 |
| 4096 |
E_RECOVERABLE_ERROR
(integer)
|
Catchable fatal error. It indicates that a probably dangerous error
occurred, but did not leave the Engine in an unstable state. If the error
is not caught by a user defined handle (see also
set_error_handler()), the application aborts as it
was an E_ERROR.
|
Since PHP 5.2.0 |
| 8192 |
E_DEPRECATED
(integer)
|
Run-time notices. Enable this to receive warnings about code that will not work in future versions. | Since PHP 5.3.0 |
| 16384 |
E_USER_DEPRECATED
(integer)
|
User-generated warning message. This is like an
E_DEPRECATED, except it is generated in PHP code by
using the PHP function trigger_error().
|
Since PHP 5.3.0 |
| 32767 |
E_ALL
(integer)
|
All errors and warnings, as supported, except of level
E_STRICT prior to PHP 5.4.0.
|
32767 in PHP 5.4.x, 30719 in PHP 5.3.x, 6143 in PHP 5.2.x, 2047 previously |
The above values (either numerical or symbolic) are used to build up a bitmask that specifies which errors to report. You can use the bitwise operators to combine these values or mask out certain types of errors. Note that only '|', '~', '!', '^' and '&' will be understood within php.ini.
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