is this 3 Dimensional array?

Question

$people = array('online'=>array('David'=>array("27","25"), 'Amy'),
'offline'=>array('John', 'Rob', 'Jack'));

echo $people["online"]["David"][1];

Answer 1

You can check here

https://www.google.com/amp/s/www.geeksforgeeks.org/multidimensional-arrays-in-php/amp/

Answer 2

Yes

Answer 3

Yes, you can call this a three dimentional array. But conventionally, more than 2 dimention array is called multi-dimentional array.