Remove first levels of identifier in array

Question

I think this has been up before, but could\'nt find any answer to it. If it\'s already answered please point me in the right direction with a link.

I have an array t

Answer 1

PHP array_column

$new_array = array_column($old_array,0);

This will retrieve the value at index 0 for each array within $old_array. Can also be using with associative arrays.