PHP Set Error level

Definition and Usage:
Error_reporting () Sets the error level for PHP and returns the current level.

function Syntax:
Error_reporting (Report_level)

If the parameter level is not specified, the current error levels are returned. The following items are possible values for level:
Value constant Description

1E_errora fatal run error.    The error cannot be resumed and execution of the script is paused. 2e_warningRun-time warning (non-fatal error).    Non-fatal run error, script execution does not stop. 4E_parsecompile-time parse error.    Parsing errors are generated only by the parser. 8E_noticeRuntime Reminders (These are often caused by bugs in your code, or by intentional behavior.) )    16E_core_errorfatal error during initialization of PHP at startup. 32e_core_warningwarnings during initialization of PHP startup (non-fatal error). 64E_compile_errorcompile-time fatal error.    This is like a e_error generated by the Zend scripting engine. 128e_compile_warningCompile-time warning (non-fatal error).    This is like a e_warning warning generated by the Zend scripting engine. 256E_user_erroruser-defined error message. It's like using PHP function trigger_error (programmer setup E_error)512e_user_warninguser-defined warning message. This is like using PHP function Trigger_error (a e_warning warning set by the programmer)1024E_user_noticea user-defined reminder message. It's like a trigger_error by using PHP function (programmer a e_notice set)2048e_strictCoding Normalization Warning.    Allows PHP to suggest how to modify the code to ensure the best interoperability forward compatibility. 4096E_recoverable_error to catch a fatal error. This is like a e_error, but can be captured by user-defined processing (see also Set_error_handler ())8191E_allAll errors and warnings (not includinge_strict) (e_strictwould be part ofE_all  asof PHP 6.0)

Example:
Any number of the above options can be connected (with OR or |) using "or" to report all required levels of errors.
For example, the following code turns off user-defined errors and warnings, performs certain actions, and then reverts to the original error level:

    <? PHP     // Disabling error Reporting    error_reporting (0);        // report Run-time errors    error_reporting (e_errore_warninge_parse);        // Report all Errors    error_reporting (e_all);    ? >

A simple example is:

error_reporting (e_errore_warninge_parsee_notice);

He says PHP errors, warnings, grammatical errors, and reminders are all wrong.