question_utils Class Reference

Static Public Member Functions
static	arrays_have_same_keys_and_values (array $array1, array $array2)
static	arrays_same_at_key (array $array1, array $array2, $key)
static	arrays_same_at_key_missing_is_blank (array $array1, array $array2, $key)
static	arrays_same_at_key_integer (array $array1, array $array2, $key)
static	int_to_roman ($number)

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Detailed Description

Useful functions for writing question types and behaviours.

Copyright:

2010 The Open University http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

Definition at line 675 of file lib.php.

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Member Function Documentation

static arrays_have_same_keys_and_values	(	array $	array1,
		array $	array2
	)		[static]

Tests to see whether two arrays have the same keys, with the same values (as compared by ===) for each key. However, the order of the arrays does not have to be the same.

Parameters:

array	$array1	the first array.
array	$array2	the second array.

Returns:

bool whether the two arrays have the same keys with the same corresponding values.

Definition at line 685 of file lib.php.

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static arrays_same_at_key	(	array $	array1,
		array $	array2,
		$	key
	)		[static]

Tests to see whether two arrays have the same value at a particular key. This method will return true if: 1. Neither array contains the key; or 2. Both arrays contain the key, and the corresponding values compare identical when cast to strings and compared with ===.

Parameters:

array	$array1	the first array.
array	$array2	the second array.
string	$key	an array key.

Returns:

bool whether the two arrays have the same value (or lack of one) for a given key.

Definition at line 712 of file lib.php.

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static arrays_same_at_key_integer	(	array $	array1,
		array $	array2,
		$	key
	)		[static]

Tests to see whether two arrays have the same value at a particular key. Missing values are replaced by 0, and then the values are cast to integers and compared with ===.

Parameters:

array	$array1	the first array.
array	$array2	the second array.
string	$key	an array key.

Returns:

bool whether the two arrays have the same value (or lack of one) for a given key.

Definition at line 757 of file lib.php.

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static arrays_same_at_key_missing_is_blank	(	array $	array1,
		array $	array2,
		$	key
	)		[static]

Tests to see whether two arrays have the same value at a particular key. Missing values are replaced by '', and then the values are cast to strings and compared with ===.

Parameters:

array	$array1	the first array.
array	$array2	the second array.
string	$key	an array key.

Returns:

bool whether the two arrays have the same value (or lack of one) for a given key.

Definition at line 732 of file lib.php.

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static int_to_roman

(

$

number

)

[static]

Convert an integer to roman numerals.

Parameters:

int

$number

an integer between 1 and 3999 inclusive. Anything else will throw an exception.

Returns:

string the number converted to lower case roman numerals.

Definition at line 783 of file lib.php.

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

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