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boolean Set::contains ($val1, $val2 = null)

Determines if one Set or array contains the exact keys and values of another.

$a = array(
	0 => array('name' => 'main'),
	1 => array('name' => 'about')
);
$b = array(
	0 => array('name' => 'main'),
	1 => array('name' => 'about'),
	2 => array('name' => 'contact'),
	'a' => 'b'
);

$result = Set::contains($a, $a);
// True
$result = Set::contains($a, $b);
// False
$result = Set::contains($b, $a);
// True

1. $a = array(
2. 0 => array('name' => 'main'),
3. 1 => array('name' => 'about')
4. );
5. $b = array(
6. 0 => array('name' => 'main'),
7. 1 => array('name' => 'about'),
8. 2 => array('name' => 'contact'),
9. 'a' => 'b'
10. );
11. $result = Set::contains($a, $a);
12. // True
13. $result = Set::contains($a, $b);
14. // False
15. $result = Set::contains($b, $a);
16. // True