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boolean/array Set::check ($data, $path = null)

Checks if a particular path is set in an array. If $path is empty, $data will be returned instead of a boolean value.

$set = array(
	'My Index 1' => array('First' => 'The first item')
);
$result = Set::check($set, 'My Index 1.First');
// $result == True
$result = Set::check($set, 'My Index 1');
// $result == True
$result = Set::check($set, array());
// $result == array('My Index 1' => array('First' => 'The first item'))
$set = array(
	'My Index 1' => array('First' => 
		array('Second' => 
			array('Third' => 
				array('Fourth' => 'Heavy. Nesting.'))))
);
$result = Set::check($set, 'My Index 1.First.Second');
// $result == True
$result = Set::check($set, 'My Index 1.First.Second.Third');
// $result == True
$result = Set::check($set, 'My Index 1.First.Second.Third.Fourth');
// $result == True
$result = Set::check($set, 'My Index 1.First.Seconds.Third.Fourth');
// $result == False

1. $set = array(
2. 'My Index 1' => array('First' => 'The first item')
3. );
4. $result = Set::check($set, 'My Index 1.First');
5. // $result == True
6. $result = Set::check($set, 'My Index 1');
7. // $result == True
8. $result = Set::check($set, array());
9. // $result == array('My Index 1' => array('First' => 'The first item'))
10. $set = array(
11. 'My Index 1' => array('First' =>
12. array('Second' =>
13. array('Third' =>
14. array('Fourth' => 'Heavy. Nesting.'))))
15. );
16. $result = Set::check($set, 'My Index 1.First.Second');
17. // $result == True
18. $result = Set::check($set, 'My Index 1.First.Second.Third');
19. // $result == True
20. $result = Set::check($set, 'My Index 1.First.Second.Third.Fourth');
21. // $result == True
22. $result = Set::check($set, 'My Index 1.First.Seconds.Third.Fourth');
23. // $result == False