Reverses the vector in-place.
This function has no parameters.
No value is returned.
Example #1 Ds\Vector::reverse example
<?php$vector = new \Ds\Vector(["a", "b", "c"]);$vector->reverse();print_r($vector);?>
The above example will output something similar to:
Ds\Vector Object ( [0] => c [1] => b [2] => a )