PHP - Combine arrays with same key value -

PHP - Combine arrays with same key value -

i have json array of multiple objects, here's example:

$people = [{"name":"john", "color":"green"}, {"name":"mary", "color":"green"}, {"name":"bob", "color":"red"}]

i utilize json_decode($people, true) convert them array...

now let's want combine have same color. i'd have array_merge_recursive($people[0], $people[1]) because both have green color. note have specify ones want merge recursively.

how can loop through $people after it's been decoded array format , automatically merge recursively have same key value?

something this:

foreach($people $person) { // if person has same color of previous // person merge them recursively. }

so after looping:

[{"name":"john, mary", "color":"green, green"}, {"name":"bob", "color":"red"}]

make result array associative array keyed color.

$people_by_color = array(); foreach ($people $person) { if (isset($people_by_color[$person['color']])) { $people_by_color[$person['color']]['name'] .= ', ' . $person['name']; $people_by_color[$person['color']]['color'] .= ', ' . $person['color']; } else { $people_by_color[$person['color']] = $person; } } $people_by_color = array_values($people_by_color); // turn indexed array

php arrays json object merge