OutOfRangeException vs. OutOfBoundsException

Question

PHP defines two SPL exceptions for invalid keys:

OutOfRangeException: Exception thrown when an illegal index was requested. This represents errors that s

Answer 1

It is quite simple:

OutOfRange mean "Your requested key is not within the index of a set defined in code."

OutOfBounds means "Your requested key is not within the index of a set defined by loaded configuration."