Hello John! Goodbye, World!
272.7Array ( [0] => 1 [1] => 3 [2] => 5 [3] => Seven [4] => 9 [5] => 11 )
Array ( [0] => 1 [1] => 3 [3] => Seven [4] => 9 [5] => 11 ) The count is:5

The first number is: 1
Array ( [0] => 1 [1] => 3 [3] => Seven [4] => 9 [5] => 11 )
The last number is: 11
Array ( [0] => Beth [1] => Eric [2] => Jake [3] => Jessica [4] => John [5] => Sandra )
Array ( [0] => 1 [1] => 2 [2] => 3 )
Array ( [0] => 1 [1] => 2 [2] => 3 )
Array ( [john_doe] => Array ( [name] => John [surname] => Doe [age] => 52 ) [karen_doe] => Array ( [name] => Karen [surname] => Doe [age] => 41 ) )