PHP 5.3.0 introduces two new error levels:
E_DEPRECATED error level is used to indicate that a function or feature has been deprecated. The
E_USER_DEPRECATED level is intended for indicating deprecated features in user code, similarly to the
The following is a list of deprecated INI directives. Use of any of these INI directives will cause an
E_DEPRECATED error to be thrown at startup.
is_dstparameter to mktime(). Use the new timezone handling functions instead.