3v4l.org

run code in 300+ PHP versions simultaneously
<?php declare(strict_types=1); $data = [ '-MC1kTfrrDHY3ZbidJ4Q' => [ 'from' => 'lSUfZ4sgEJd', 'message' => 'test message four no more!', 'startedAt' => '2020-07-12 11:21:10', 'to' => 'CWgPqdn3YweN', ], '-MC09BsjtXP0izITsThf' => [ 'from' => 'CWgPqdn3YweN', 'message' => 'test message three', 'startedAt' => '2020-07-11 11:20:19', 'subject' => '-MC00BHCZlXUp25C5nlS', 'to' => 'lSUfZ4sgEJd', ], '-MC1kAi1niswXtjY_h4s' => [ 'from' => 'CWgPqdn3YweN', 'message' => 'test message two', 'startedAt' => '2020-07-12 11:19:52', 'to' => 'lSUfZ4sgEJd', ], '-MC1kOtfnIlAYtmJsD-a' => [ 'from' => 'CWgPqdn3YweN', 'message' => 'test message one', 'startedAt' => '2020-07-12 11:18:50', 'to' => 'lSUfZ4sgEJd', ], '-MC1kOtfnIlAhgcufu' => [ 'from' => 'CWgPqdn3YweN', 'message' => 'test message zero', 'startedAt' => '2020-07-12 11:00:50', 'to' => 'YLisXjk07w93', ], ]; function getLatestUniqueConversationMessagesByUser(array $message, string $user): array { $conversations = []; $latestUniqueConversationMessages = []; foreach ($message as $messageKey => $message) { $participants = [$message['from'], $message['to']]; // Skip entries where $user is has not participated (not sure if needed) if (!in_array($user, $participants)) { continue; } // Make "to|from" same as "from|to" sort($participants); $conversationKey = join('|', $participants); // Check if conversation has been handled already if (!array_key_exists($conversationKey, $conversations)) { $conversations[$conversationKey] = true; // Save as "handled" $latestUniqueConversationMessages[$messageKey] = $message; // Save actual data to return } } return $latestUniqueConversationMessages; } var_dump(getLatestUniqueConversationMessagesByUser($data, 'CWgPqdn3YweN'));

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.4.140.0090.01117.43
8.4.130.0130.00422.08
8.4.120.0080.00420.65
8.4.110.0120.00822.41
8.4.100.0140.00518.61
8.4.90.0080.01118.84
8.4.80.0130.00718.78
8.4.70.0100.00919.07
8.4.60.0120.00918.43
8.4.50.0110.01120.51
8.4.40.0160.00317.71
8.4.30.0210.00020.24
8.4.20.0070.01018.71
8.4.10.0050.00320.50
8.3.270.0150.00516.47
8.3.260.0120.00816.64
8.3.250.0100.00819.08
8.3.240.0130.00717.13
8.3.230.0130.00716.68
8.3.220.0110.00819.23
8.3.210.0090.00716.86
8.3.200.0090.00916.57
8.3.190.0110.00817.07
8.3.180.0080.01116.43
8.3.170.0060.01218.64
8.3.160.0060.01217.38
8.3.150.0100.01017.36
8.3.140.0040.00417.22
8.3.130.0080.00018.15
8.3.120.0050.00519.11
8.3.110.0090.00920.94
8.3.100.0130.00618.45
8.3.90.0040.00426.77
8.3.80.0030.00616.75
8.3.70.0070.01116.58
8.3.60.0060.01018.56
8.3.50.0090.00823.63
8.3.40.0110.01118.57
8.3.30.0180.00018.88
8.3.20.0050.00324.18
8.3.10.0000.00824.66
8.3.00.0040.00426.16
8.2.290.0110.00820.57
8.2.280.0120.00816.48
8.2.270.0060.00919.19
8.2.260.0090.00918.38
8.2.250.0030.00518.70
8.2.240.0130.00317.30
8.2.230.0030.00622.58
8.2.220.0060.00324.06
8.2.210.0040.01526.77
8.2.200.0030.00616.75
8.2.190.0090.00916.58
8.2.180.0040.01125.92
8.2.170.0120.00918.91
8.2.160.0100.00322.96
8.2.150.0000.00825.66
8.2.140.0040.00424.66
8.2.130.0050.00326.16
8.2.120.0080.00026.35
8.2.110.0040.00420.43
8.2.100.0060.00617.53
8.2.90.0040.00418.03
8.2.80.0030.00918.91
8.2.70.0030.00617.75
8.2.60.0060.00317.93
8.2.50.0000.00818.07
8.2.40.0040.00418.22
8.2.30.0080.00018.15
8.2.20.0030.00518.21
8.2.10.0080.00019.21
8.2.00.0030.00519.24
8.1.330.0090.01021.87
8.1.320.0120.00715.81
8.1.310.0140.00318.23
8.1.300.0040.00417.75
8.1.290.0090.00030.84
8.1.280.0140.00425.92
8.1.270.0050.00323.99
8.1.260.0040.00428.09
8.1.250.0000.00728.09
8.1.240.0040.00721.97
8.1.230.0040.00722.13
8.1.220.0040.00417.78
8.1.210.0040.00418.77
8.1.200.0060.00317.35
8.1.190.0030.00517.35
8.1.180.0050.00518.10
8.1.170.0060.00318.52
8.1.160.0040.00418.88
8.1.150.0040.00418.93
8.1.140.0070.00018.86
8.1.130.0030.00520.08
8.1.120.0040.00417.39
8.1.110.0030.00517.44
8.1.100.0030.00517.37
8.1.90.0000.00917.46
8.1.80.0040.00417.36
8.1.70.0000.00817.36
8.1.60.0050.00317.63
8.1.50.0060.00317.58
8.1.40.0040.00417.55
8.1.30.0030.00517.67
8.1.20.0000.00817.52
8.1.10.0060.00317.61
8.1.00.0030.00617.51
8.0.300.0040.00418.77
8.0.290.0060.00316.75
8.0.280.0030.00318.46
8.0.270.0030.00318.04
8.0.260.0080.00018.38
8.0.250.0000.00716.87
8.0.240.0050.00317.00
8.0.230.0030.00316.98
8.0.220.0030.00316.88
8.0.210.0040.00416.82
8.0.200.0070.00016.84
8.0.190.0000.00816.94
8.0.180.0030.00516.86
8.0.170.0050.00516.91
8.0.160.0000.00716.81
8.0.150.0030.00516.83
8.0.140.0020.00516.88
8.0.130.0030.00313.35
8.0.120.0070.00016.89
8.0.110.0000.00716.97
8.0.100.0000.00716.78
8.0.90.0040.00416.90
8.0.80.0110.00716.84
8.0.70.0050.00316.74
8.0.60.0070.00016.78
8.0.50.0000.00816.79
8.0.30.0150.00917.34
8.0.20.0130.00817.08
8.0.10.0000.00716.86
8.0.00.0100.01016.89
7.4.330.0020.00215.55
7.4.320.0060.00016.67
7.4.300.0040.00416.47
7.4.290.0080.00016.42
7.4.280.0060.00316.42
7.4.270.0030.00516.55
7.4.260.0000.00513.32
7.4.250.0000.00816.59
7.4.240.0000.00716.55
7.4.230.0040.00416.70
7.4.220.0050.00316.59
7.4.210.0070.00916.62
7.4.200.0070.00016.65
7.4.130.0080.01216.40
7.4.120.0060.01216.41
7.4.110.0070.01116.54
7.4.100.0100.01016.45
7.4.90.0070.01016.50
7.4.80.0220.01016.49
7.4.70.0120.01816.55
7.4.60.0120.01616.10
7.4.50.0250.00716.46
7.4.40.0170.01816.51
7.4.30.0240.01016.50
7.4.20.0190.01916.56
7.4.10.0170.01516.43
7.4.00.0170.00016.50
7.3.330.0050.00216.24
7.3.320.0030.00313.35
7.3.310.0000.00716.41
7.3.300.0040.00416.41
7.3.290.0100.00816.38
7.3.280.0070.01316.45
7.3.260.0120.00616.43
7.3.230.0110.00716.64
7.3.210.0040.01916.55
7.3.200.0240.00816.36
7.3.190.0270.00416.31
7.3.180.0240.00916.47
7.3.170.0170.01216.23
7.3.160.0240.00916.48
7.3.150.0250.00716.68
7.3.140.0260.01016.34
7.3.130.0250.00616.47
7.3.120.0230.00816.34
7.3.110.0120.01716.63
7.3.100.0120.01216.59
7.3.90.0170.01716.59
7.3.80.0150.01116.54
7.3.70.0210.00916.45
7.3.60.0230.00816.36
7.3.50.0270.00516.63
7.3.40.0100.01016.29
7.3.30.0290.00016.53
7.3.20.0140.00616.50
7.3.10.0120.00816.55
7.3.00.0180.01216.46
7.2.330.0130.00716.82
7.2.320.0220.01416.50
7.2.310.0220.01116.50
7.2.300.0190.01116.84
7.2.290.0250.01216.73
7.2.280.0310.00316.48
7.2.270.0240.00716.51
7.2.260.0250.00816.79
7.2.250.0140.00516.76
7.2.240.0100.00716.79
7.2.230.0150.01216.48
7.2.220.0100.01116.78
7.2.210.0270.00616.71
7.2.200.0150.01516.57
7.2.190.0200.00816.55
7.2.180.0240.00516.57
7.2.170.0100.01316.63
7.2.160.0170.00816.55
7.2.150.0280.01016.69
7.2.140.0200.01016.88
7.2.130.0340.00316.61
7.2.120.0090.01316.85
7.2.110.0270.01316.61
7.2.100.0200.00916.61
7.2.90.0210.01016.47
7.2.80.0270.01016.65
7.2.70.0250.01416.64
7.2.60.0180.01416.81
7.2.50.0090.01416.73
7.2.40.0250.01616.64
7.2.30.0180.01316.70
7.2.20.0170.01716.77
7.2.10.0330.00016.79
7.2.00.0260.00816.69

preferences:
32.13 ms | 403 KiB | 5 Q