array PEAR_ErrorStack::getErrors (
, string|false $level
Retrieve all errors since last purge, or filter all errors and only return errors of a particular error level, leaving the rest on the stack.
set in order to empty the error stack
Level name to check for a particular severity. Use this to determine whether only a particular class of errors has occurred, such as whether any warnings have occurred (errors will be ignored)
throws no exceptions thrown
This function can not be called statically.