php array find duplicates, sum them up & delete duplicates

Question

i have an array:

Array 
(
[0] => Array
    (
        [setid] => 2
        [income] => 100
    )

[1] => Array
    (
        [setid] => 2
              


        

Answer 1

You should use the array_unique function that php's official site offers.

An example:

 "green", "red", "b" => "green", "blue", "red");
$result = array_unique($input);
print_r($result);
?>

Output:

Array
(
    [a] => green
    [0] => red
    [1] => blue
)

To sum the duplicated values you can use the array_count_values function:

Output would be:

Array
(
    [1] => 2
    [hello] => 2
    [world] => 1
)