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<?php $arr[] = ["model_id" => 1, "price" => 2000]; $arr[] = ["model_id" => 2, "price" => 3000]; $arr[] = ["model_id" => 1, "price" => 1500]; $res = []; foreach($arr as $e) { if (isset($res[$e["model_id"]])) $res[$e["model_id"]]["price"] = min($res[$e["model_id"]]["price"], $e["price"]); else $res[$e["model_id"]] = $e; } print_r($res);
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [1] => Array ( [model_id] => 1 [price] => 1500 ) [2] => Array ( [model_id] => 2 [price] => 3000 ) )

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