Question

I need a php function that will recursively search an array on the basis of key I provided. and want to get an array as return output containing all the values those are mapped with the searched key.

For e.g.:

[Case] => Array
    (
        [0] => Array
            (
                [CASE_ID] => 2233
                [CHECK_ID] => 57
                [CLIENT_ID] => 78
            )
        [2] => Array
            (
                [CASE_ID] => 9542
                [CHECK_ID] => 45
                [CLIENT_ID] => 18
            )
     )

If I would pass this array and key CHECK_ID, then it should return me an array containing 57,45. Kindly ask if you need more explanation. Thanks in Advance.

Answer 1

Walking the array and chucking found keys into a new one:

function find_matches($array, $value) {
    $found = array();
    array_walk_recursive($array,
        function ($item, $key) use ($value, &$found) {
            if ($value === $key) {
                $found[] = $item;
            }
        }
    );
    return $found;
}

see http://codepad.viper-7.com/dVmYOT

Have you also considered using find(‘list’) with a fields condition restriction?