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run code in 300+ PHP versions simultaneously
<?php function sumCarries(array $array) { $columns = ['carries' => []]; // prepare matrix of 1-digit integers in columns -- ones, tens, hundreds, etc foreach ($array as $integer) { $columns[] = str_split(strrev($integer)); } // sum column values in ascending order and populate carry values // subsequent column sums need to include carried value for ($i = 0, $len = strlen(max($array)); $i < $len; ++$i) { $columns['carries'][$i + 1] = (int)(array_sum(array_column($columns, $i)) / 10); } // sum all populated carry values return array_sum($columns['carries']); } $tests = [ [123, 456], // no carries in any column [555, 555], // 1 ones, 1 tens, 1 hundreds [123, 594], // 1 tens [123, 123, 804], // 1 ones, 1 hundreds [99, 9, 99, 99, 99], // 4 ones, 4 hundreds [9,9,9,9,9,9,9,9,9,9,9,9], // 10 ones ]; var_export(array_map('sumCarries', $tests));

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)
8.5.10.0080.01116.68
8.5.00.0110.01119.99
8.4.160.0130.00819.81
8.4.150.0030.00014.05
8.4.140.0200.01017.50
8.4.130.0120.00817.83
8.4.120.0120.00820.25
8.4.110.0140.00622.36
8.4.100.0120.00817.62
8.4.90.0090.01118.79
8.4.80.0110.01017.80
8.4.70.0060.00417.82
8.4.60.0030.00617.95
8.4.50.0050.00319.48
8.4.40.0070.01019.59
8.4.30.0060.00320.54
8.4.20.0070.01318.89
8.4.10.0130.00317.67
8.3.280.0100.00920.89
8.3.270.0130.00716.39
8.3.260.0120.00816.80
8.3.250.0140.00418.87
8.3.240.0140.00516.76
8.3.230.0090.00816.56
8.3.220.0090.00917.23
8.3.210.0130.00716.49
8.3.200.0040.00416.50
8.3.190.0110.00816.73
8.3.180.0150.00518.96
8.3.170.0110.00717.34
8.3.160.0120.00318.27
8.3.150.0030.00616.73
8.3.140.0080.00016.81
8.3.130.0100.01316.90
8.3.120.0090.00618.93
8.3.110.0080.00820.94
8.3.100.0040.00424.06
8.3.90.0140.00626.77
8.3.80.0120.00016.50
8.3.70.0090.00618.55
8.3.60.0140.00718.43
8.3.50.0120.00918.18
8.3.40.0090.00619.04
8.3.30.0100.00718.70
8.3.20.0040.00424.18
8.3.10.0080.00024.66
8.3.00.0050.00326.16
8.2.290.0080.00320.50
8.2.280.0120.00818.52
8.2.270.0040.01217.36
8.2.260.0030.00618.20
8.2.250.0040.00418.28
8.2.240.0090.00918.95
8.2.230.0060.00322.58
8.2.220.0090.00037.54
8.2.210.0040.01126.77
8.2.200.0030.00616.63
8.2.190.0040.01116.88
8.2.180.0090.00625.92
8.2.170.0120.00318.95
8.2.160.0030.01022.96
8.2.150.0080.00025.66
8.2.140.0050.00224.66
8.2.130.0070.00026.16
8.2.120.0040.00421.13
8.2.110.0030.00622.07
8.2.100.0060.00617.84
8.2.90.0000.00817.75
8.2.80.0040.00418.89
8.2.70.0030.00717.63
8.2.60.0030.00617.93
8.2.50.0000.00918.07
8.2.40.0030.00518.33
8.2.30.0070.00318.15
8.2.20.0000.00818.09
8.2.10.0070.00019.35
8.2.00.0000.00719.25
8.1.330.0140.00522.07
8.1.320.0130.00716.41
8.1.310.0030.00518.74
8.1.300.0000.01017.93
8.1.290.0030.00618.88
8.1.280.0070.00725.92
8.1.270.0040.00423.99
8.1.260.0050.00526.35
8.1.250.0030.00528.09
8.1.240.0090.00019.01
8.1.230.0090.00317.89
8.1.220.0040.00417.77
8.1.210.0030.00518.77
8.1.200.0060.00317.38
8.1.190.0060.00317.35
8.1.180.0000.00818.10
8.1.170.0000.00818.65
8.1.160.0000.00718.98
8.1.150.0070.00018.93
8.1.140.0000.00718.97
8.1.130.0030.00617.36
8.1.120.0040.00417.54
8.1.110.0030.00617.50
8.1.100.0040.00417.54
8.1.90.0000.00717.53
8.1.80.0040.00417.46
8.1.70.0030.00617.38
8.1.60.0000.00817.57
8.1.50.0080.00017.41
8.1.40.0070.00317.56
8.1.30.0000.00817.72
8.1.20.0000.00817.70
8.1.10.0080.00017.57
8.1.00.0050.00317.41
8.0.300.0040.00418.77
8.0.290.0080.00016.63
8.0.280.0000.00818.49
8.0.270.0070.00017.93
8.0.260.0060.00316.78
8.0.250.0000.00716.84
8.0.240.0060.00016.88
8.0.230.0040.00417.00
8.0.220.0030.00316.94
8.0.210.0030.00416.91
8.0.200.0040.00416.90
8.0.190.0080.00017.04
8.0.180.0000.00716.97
8.0.170.0080.00316.84
8.0.160.0060.00316.98
8.0.150.0040.00416.86
8.0.140.0000.00716.90
8.0.130.0060.00013.32
8.0.120.0050.00316.79
8.0.110.0040.00416.86
8.0.100.0070.00016.80
8.0.90.0060.00317.00
8.0.80.0070.00716.93
8.0.70.0110.00416.84
8.0.60.0060.00916.91
8.0.50.0080.00616.87
8.0.30.0000.01416.86
8.0.20.0090.00616.99
8.0.10.0070.01316.93
8.0.00.0070.00716.98
7.4.330.0020.00215.55
7.4.320.0000.00716.67
7.4.300.0030.00316.50
7.4.290.0040.00416.47
7.4.280.0040.00416.48
7.4.270.0030.00316.54
7.4.260.0030.00313.36
7.4.250.0050.00216.52
7.4.240.0030.00316.54
7.4.230.0030.00516.59
7.4.220.0000.00716.71
7.4.210.0030.00916.58
7.4.200.0000.01416.67
7.4.190.0100.00316.64
7.4.180.0140.00016.78
7.4.160.0120.00316.63
7.4.150.0060.00916.47
7.4.140.0100.00316.53
7.4.130.0080.00616.43
7.4.120.0080.01216.54
7.4.110.0100.00716.53
7.4.100.0090.00916.60
7.4.90.0110.00816.47
7.4.80.0100.01016.49
7.4.70.0060.00916.52
7.4.60.0130.00016.64
7.4.50.0070.00716.60
7.4.40.0030.01016.48
7.4.30.0070.01416.37
7.4.20.0060.00916.61
7.4.10.0100.00316.53
7.4.00.0140.00016.62
7.3.330.0000.00716.35
7.3.320.0060.00013.42
7.3.310.0030.00316.26
7.3.300.0000.00716.27
7.3.290.0100.00316.39
7.3.280.0060.01216.45
7.3.270.0040.01416.32
7.3.260.0080.00516.32
7.3.250.0090.00516.35
7.3.240.0140.00016.38
7.3.230.0100.00316.44
7.3.220.0150.00316.31
7.3.210.0150.00316.32
7.3.200.0060.01216.34
7.3.190.0050.01316.34
7.3.180.0030.01516.39
7.3.170.0070.01116.39
7.3.160.0110.01116.30
7.3.150.0100.00616.32
7.3.140.0110.00516.38
7.3.130.0040.00916.35
7.3.120.0080.00616.28
7.3.110.0030.01116.28
7.3.100.0030.01016.20
7.3.90.0140.00016.61
7.3.80.0040.01116.35
7.3.70.0000.01316.44
7.3.60.0070.00716.48
7.3.50.0060.00916.52
7.3.40.0060.00916.50
7.3.30.0060.01016.52
7.3.20.0060.00916.48
7.3.10.0090.00616.48
7.3.00.0070.00716.45

preferences:
36.82 ms | 403 KiB | 5 Q