- array_column: documentation ( source)
- var_export: documentation ( source)
- array_values: documentation ( source)
<?php
$array = [
['dave', 'jones', 'c@b.c'],
['john', 'jones', 'a@b.c'],
['bruce', 'finkle', 'c@b.c']
];
var_export(array_values(array_column($array, null, 2)));