question_variant_selection_strategy Interface Reference

Inheritance diagram for question_variant_selection_strategy:

Public Member Functions
	choose_variant ($maxvariants, $seed)

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Detailed Description

The interface for strategies for controlling which variant of each question is used.

Copyright:

2011 The Open University http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

Definition at line 801 of file lib.php.

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Member Function Documentation

choose_variant	(	$	maxvariants,
		$	seed
	)

Parameters:

int	$maxvariants	the num
string	$seed	data that can be used to controls how the variant is selected in a semi-random way.

Returns:

int the variant to use, a number betweeb 1 and $maxvariants inclusive.

Implemented in question_variant_pseudorandom_no_repeats_strategy, and question_variant_random_strategy.

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The documentation for this interface was generated from the following file:

• C:/xampp/htdocs/moodle/question/engine/lib.php