Online PHP editor | perf for mZQIN

<?php error_reporting(-1); ini_set('display_errors', 1); $json_data = <<<JSON {"messages": [ { "id": 1, "customer": "Dr. Kane Hill", "customer_id": 1, "created_at": "2024-11-19 11:18:57", "text": "Hello, how are you?" }, { "id": 2, "customer": "Dr. Kane Hill", "customer_id": 1, "created_at": "2024-11-19 11:20:57", "text": "I am good, thanks! How about you?" }, { "id": 3, "customer": "Prof. Samir McClure III", "customer_id": 2, "created_at": "2024-11-19 11:21:57", "text": "Hey, what time is it?" }, { "id": 4, "customer": "Prof. Samir McClure III", "customer_id": 2, "created_at": "2024-11-19 11:22:57", "text": "It is 3 PM." }, { "id": 5, "customer": "Shad Leffler", "customer_id": 3, "created_at": "2024-11-19 11:23:57", "text": "Did you finish the project?" }, { "id": 6, "customer": "Shad Leffler", "customer_id": 3, "created_at": "2024-11-19 11:24:57", "text": "New mesh" }, { "id": 7, "customer": "Prof. Samir McClure III", "customer_id": 2, "created_at": "2024-11-19 11:26:57", "text": "Not bed?" }, { "id": 8, "customer": "Prof. Samir McClure III", "customer_id": 2, "created_at": "2024-11-19 11:27:57", "text": "Cool?" } ]} JSON; $messages = json_decode($json_data, true)['messages']; $messages2 = []; $messageCounter = 0; foreach($messages as $row) { $key = $row['customer_id']; if(!isset($messages2[$key])) { $messages2[$key] = [ 'customer' => $row['customer'], 'message_id' => (++$messageCounter), 'customer_id' => $row['customer_id'], 'messages' => [], ]; } $messages2[$key]['messages'][] = [ 'id' => $row['id'], 'created_at' => $row['created_at'], 'text' => $row['text'], ]; } $messages2 = array_values($messages2); echo json_encode($messages2, JSON_PRETTY_PRINT);

Version	System time (s)	User time (s)	Memory (MiB)
8.4.13	0.010	0.007	18.03
8.4.12	0.005	0.007	20.63
8.4.11	0.008	0.003	18.88
8.4.10	0.014	0.008	17.71
8.4.9	0.014	0.007	18.51
8.4.8	0.012	0.009	17.71
8.4.7	0.004	0.005	18.04
8.4.6	0.011	0.009	19.38
8.4.5	0.011	0.009	20.47
8.4.4	0.007	0.013	18.65
8.4.3	0.004	0.004	18.95
8.4.2	0.010	0.010	21.45
8.4.1	0.004	0.004	19.27
8.3.26	0.011	0.008	16.60
8.3.25	0.014	0.005	18.80
8.3.24	0.014	0.006	16.80
8.3.23	0.012	0.007	16.57
8.3.22	0.005	0.003	17.05
8.3.21	0.009	0.008	16.54
8.3.20	0.009	0.010	16.73
8.3.19	0.012	0.006	17.25
8.3.18	0.014	0.005	18.89
8.3.17	0.007	0.011	17.11
8.3.16	0.011	0.007	18.36
8.3.15	0.011	0.007	16.93
8.3.14	0.006	0.003	18.52
8.3.13	0.013	0.007	16.67
8.3.12	0.000	0.008	16.52
8.3.5	0.004	0.004	16.69
8.2.29	0.009	0.011	20.43
8.2.28	0.008	0.007	16.38
8.2.27	0.015	0.000	16.79
8.2.26	0.005	0.003	17.49
8.2.25	0.011	0.004	18.34
8.1.33	0.004	0.003	22.06
8.1.32	0.013	0.007	15.96
8.1.31	0.009	0.006	16.54