lib.php File Reference

Classes
class	question_display_options
	This class contains all the options that controls how a question is displayed. More...
class	question_engine
	This static class provides access to the other question engine classes. More...
class	question_flags
	Contains the logic for handling question flags. More...
class	question_out_of_sequence_exception
	Exception thrown when the system detects that a student has done something out-of-order to a question. More...
class	question_utils
	Useful functions for writing question types and behaviours. More...
class	question_variant_forced_choices_selection_strategy
	A question_variant_selection_strategy designed ONLY for testing. More...
class	question_variant_pseudorandom_no_repeats_strategy
	A question_variant_selection_strategy that is effectively random for the first attempt, and then after that cycles through the available variants so that the students will not get a repeated variant until they have seen them all. More...
class	question_variant_random_strategy
	A question_variant_selection_strategy that is completely random. More...
interface	question_variant_selection_strategy
	The interface for strategies for controlling which variant of each question is used. More...