Error level in PHP

In the course of PHP programming, you will encounter more or less error reminders, it is these error hints, guide us to write cleaner code, today first write our main list of error types, first dig pits, write about PHP errors and anomalies related knowledge, slowly pits.

Deprecated lowest level error, program continues execution

Notice notification level errors such as using undeclared variables directly, the program continues execution

Warning Warning Level error, may not get the desired result

Fatal error fatal level error fatal level errors, program does not execute down

Parse error syntax parsing errors, highest level errors, and even other error messages are not rendered

E_user_ related error user settings related errors

