Error level for PHP

Deprecated deprecated, there may be vulnerabilities that may be inefficient, future versions not supported, etc.

Notice notification-level errors

Warning warns this needs to see if the code is out of the question. Above three programs still continue to execute down

Fatal error fatal bug program stops executing

Parse error parsing errors directly hangs the program to stop execution

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E_user level error, user-defined error; like, I trigger Trigger_error () a e_user_error level error, which is equivalent to the error of PHP itself

By the way here, find a way to php.ini, print out phpinfo ();

Even if it is not here, you have to put it here!

The program writes non-php.ini.

error_reporting (0); Do not display errors

Error_reporting (-1); Show All Errors

Show: Ini_set (' display_errors ', ' on ');

Error level for PHP