3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [ 1650 => ["firstName" => "jack", "lastName" => "straw"], 1649 => ["firstName" => "jack", "lastName" => "straw"], 1651 => ["firstName" => "jack", "lastName" => "straw"], 1652 => ["firstName" => "jack", "lastName" => "straw"], 1653 => ["firstName" => "jack1", "lastName" => "straw"], 1654 => ["firstName" => "jack1", "lastName" => "straw"] ]; ksort($array); $temp = []; foreach ($array as $key => $row) { $compositeKey = $row['firstName'] . '-' . $row['firstName']; $temp[$compositeKey] ??= $row; $temp[$compositeKey]['mergedWith'][] = $key; } $result = []; foreach ($temp as $row) { $result[array_shift($row['mergedWith'])] = $row; } var_export($result);

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)
8.4.140.0120.01117.64
8.4.130.0040.00518.89
8.4.120.0090.01217.79
8.4.110.0120.00918.03
8.4.100.0120.00917.80
8.4.90.0080.00620.60
8.4.80.0030.00618.89
8.4.70.0120.00918.71
8.4.60.0060.00318.91
8.4.50.0130.00817.70
8.4.40.0110.00722.32
8.4.30.0040.01520.39
8.4.20.0000.00817.75
8.4.10.0100.00022.09
8.3.270.0140.00516.45
8.3.260.0130.00616.77
8.3.250.0080.00216.69
8.3.240.0120.00616.79
8.3.230.0120.00716.54
8.3.220.0070.00319.01
8.3.210.0100.00819.23
8.3.200.0030.00616.84
8.3.190.0090.00818.93
8.3.180.0140.00616.45
8.3.170.0110.00716.64
8.3.160.0180.00016.50
8.3.150.0100.01017.31
8.3.140.0080.00018.44
8.3.130.0040.00418.48
8.3.120.0070.00318.86
8.3.110.0030.00520.94
8.3.100.0060.00324.06
8.3.90.0070.00726.77
8.3.80.0030.00616.50
8.3.70.0110.00716.88
8.3.60.0110.00416.75
8.3.50.0120.00620.32
8.3.40.0040.01521.91
8.3.30.0150.00018.84
8.3.20.0040.00424.18
8.3.10.0060.00324.66
8.3.00.0040.00426.16
8.2.290.0050.00316.46
8.2.280.0050.00318.58
8.2.270.0030.01516.84
8.2.260.0040.01119.00
8.2.250.0050.00316.99
8.2.240.0060.00319.04
8.2.230.0090.00022.58
8.2.220.0090.00037.54
8.2.210.0040.01526.77
8.2.200.0060.00318.54
8.2.190.0090.00616.75
8.2.180.0040.01525.92
8.2.170.0090.00619.07
8.2.160.0100.00722.96
8.2.150.0080.00025.66
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0070.00026.16
8.2.110.0100.00020.99
8.2.100.0110.00017.91
8.2.90.0040.00417.75
8.2.80.0000.00817.97
8.2.70.0040.00417.38
8.2.60.0040.00417.38
8.2.50.0050.00318.04
8.2.40.0040.00419.79
8.2.30.0080.00018.21
8.2.20.0000.00720.37
8.2.10.0000.00718.20
8.2.00.0040.00419.24
8.1.330.0120.00716.20
8.1.320.0070.01117.82
8.1.310.0100.00717.02
8.1.300.0110.00718.52
8.1.290.0100.00018.88
8.1.280.0130.00925.92
8.1.270.0000.00920.51
8.1.260.0080.00026.35
8.1.250.0050.00328.09
8.1.240.0080.00321.91
8.1.230.0090.00422.75
8.1.220.0080.00017.77
8.1.210.0030.00518.77
8.1.200.0040.00717.22
8.1.190.0050.00317.25
8.1.180.0040.00418.10
8.1.170.0040.00417.62
8.1.160.0050.00218.78
8.1.150.0000.00818.57
8.1.140.0050.00317.41
8.1.130.0070.00018.82
8.1.120.0040.00417.38
8.1.110.0040.00417.37
8.1.100.0000.00717.38
8.1.90.0050.00317.53
8.1.80.0060.00617.43
8.1.70.0170.00017.38
8.1.60.0090.01017.60
8.1.50.0150.00517.41
8.1.40.0140.00317.41
8.1.30.0140.00217.58
8.1.20.0140.00217.53
8.1.10.0100.00317.56
8.1.00.0130.00717.37
8.0.300.0070.00019.60
8.0.290.0060.00316.75
8.0.280.0000.00818.46
8.0.270.0030.00316.71
8.0.260.0000.00718.35
8.0.250.0040.00416.98
8.0.240.0040.00416.96
8.0.230.0070.00316.82
8.0.220.0000.00716.91
8.0.210.0080.00016.86
8.0.200.0090.00616.84
8.0.190.0100.00516.82
8.0.180.0090.00616.91
8.0.170.0110.00616.93
8.0.160.0120.00416.88
8.0.150.0080.00816.83
8.0.140.0080.00816.86
8.0.130.0040.01116.92
8.0.120.0070.00716.76
8.0.110.0120.00316.88
8.0.100.0140.00316.84
8.0.90.0110.00416.72
8.0.80.0150.00016.71
8.0.70.0130.00316.88
8.0.60.0120.00216.86
8.0.50.0120.00416.81
8.0.30.0120.00416.78
8.0.20.0100.00616.95
8.0.10.0080.00816.96
7.4.330.0000.00515.55
7.4.320.0060.00016.50
7.4.300.0060.00616.54
7.4.290.0140.00016.53
7.4.280.0090.00516.48
7.4.270.0110.00416.54
7.4.260.0130.00016.60
7.4.250.0070.01016.36
7.4.240.0130.00416.57
7.4.230.0140.00416.50
7.4.220.0130.00316.60
7.4.210.0100.00516.42
7.4.200.0090.00616.49
7.4.190.0120.00516.66
7.4.180.0120.00616.49
7.4.160.0120.00316.67
7.4.150.0100.00616.50
7.4.140.0110.00416.39
7.4.130.0120.00316.30
7.4.120.0040.00816.26
7.4.110.0070.00316.36
7.4.100.0080.00416.64
7.4.90.0000.01316.37
7.4.80.0150.00016.30
7.4.70.0080.00316.48
7.4.60.0140.00016.41
7.4.50.0100.00316.39
7.4.40.0140.00016.22
7.4.30.0110.00216.47
7.4.20.0150.00216.30
7.4.10.0110.00916.35
7.4.00.0080.00616.51

preferences:
31.06 ms | 403 KiB | 5 Q