I have a php array like this:
[
['url_id' => 2191238, 'time_spent' => 41],
['url_id' => 2191606, 'time_spent' => 215],
['url_id' => 2191606, 'time_spent' => 25]
]
How to get the SUM of time_spent based on group by url_id (using array_count_values?)?
Why not a simpler