3v4l.org

run code in 300+ PHP versions simultaneously
<?php function getCombinedSum($digits, $sum) { if(!is_int($digits) || !is_int($sum) || $digits<1 || $sum<0) { throw new InvalidArgumentException('Invalid numeric format'); } if($sum>9*$digits) { throw new LogicException('Sum out of range'); } if($digits==1) { return [$sum]; } $result = []; for($digit=0; $digit<10 && $sum-$digit>0; $digit++) { $subsum = join('',getCombinedSum($digits-1, $sum-$digit)); for($j=0; $j<$digits; $j++) { $result[] = substr($subsum, 0, $j).$digit.substr($subsum, $j); } } return $result; } var_dump(getCombinedSum(3, 1));

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)
8.3.60.0070.01018.55
8.3.50.0090.00921.27
8.3.40.0120.00318.97
8.3.30.0040.01420.33
8.3.20.0000.00820.34
8.3.10.0080.00021.17
8.3.00.0040.00422.65
8.2.180.0070.00716.75
8.2.170.0060.01222.96
8.2.160.0170.00322.11
8.2.150.0100.00724.18
8.2.140.0040.00424.66
8.2.130.0000.00826.16
8.2.120.0080.00020.69
8.2.110.0090.00019.21
8.2.100.0000.01217.84
8.2.90.0000.00819.17
8.2.80.0050.00317.97
8.2.70.0110.00017.63
8.2.60.0090.00018.05
8.2.50.0000.00918.07
8.2.40.0000.00818.34
8.2.30.0070.00019.47
8.2.20.0040.00417.75
8.2.10.0000.00717.73
8.2.00.0030.00617.66
8.1.280.0120.00925.92
8.1.270.0080.00023.99
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0000.00923.92
8.1.230.0110.00020.91
8.1.220.0050.00318.77
8.1.210.0030.00519.14
8.1.200.0050.00517.35
8.1.190.0040.00417.40
8.1.180.0000.00818.10
8.1.170.0040.00418.65
8.1.160.0060.00318.93
8.1.150.0040.00418.68
8.1.140.0070.00017.52
8.1.130.0040.00417.86
8.1.120.0000.00717.52
8.1.110.0000.00717.37
8.1.100.0040.00417.41
8.1.90.0050.00217.48
8.1.80.0040.00317.38
8.1.70.0030.00317.47
8.1.60.0060.00317.51
8.1.50.0000.00717.54
8.1.40.0040.00417.59
8.1.30.0040.00417.68
8.1.20.0050.00317.59
8.1.10.0040.00417.54
8.1.00.0030.00617.55
8.0.300.0070.00019.77
8.0.290.0000.00717.18
8.0.280.0000.00718.53
8.0.270.0030.00317.29
8.0.260.0080.00016.77
8.0.250.0070.00016.98
8.0.240.0080.00016.99
8.0.230.0070.00017.04
8.0.220.0000.00716.81
8.0.210.0000.00816.95
8.0.200.0030.00317.02
8.0.190.0000.00817.01
8.0.180.0050.00216.94
8.0.170.0040.00416.93
8.0.160.0030.00316.98
8.0.150.0000.00816.84
8.0.140.0000.00716.79
8.0.130.0000.00613.32
8.0.120.0040.00416.91
8.0.110.0000.00716.81
8.0.100.0000.00816.72
8.0.90.0040.00416.92
8.0.80.0130.00616.99
8.0.70.0080.00016.92
8.0.60.0040.00416.80
8.0.50.0070.00016.96
8.0.30.0120.00917.04
8.0.20.0130.00517.41
8.0.10.0000.00817.08
8.0.00.0110.00916.62
7.4.330.0020.00216.73
7.4.320.0000.00716.62
7.4.300.0070.00016.41
7.4.290.0000.00716.55
7.4.280.0000.00716.54
7.4.270.0060.00016.56
7.4.260.0030.00313.23
7.4.250.0080.00016.64
7.4.240.0020.00516.62
7.4.230.0070.00016.28
7.4.220.0090.01016.64
7.4.210.0070.00816.60
7.4.200.0030.00316.73
7.4.190.0050.00216.51
7.4.160.0160.00016.48
7.4.150.0090.00917.40
7.4.140.0110.01917.86
7.4.130.0060.01216.50
7.4.120.0070.01116.56
7.4.110.0030.01316.34
7.4.100.0130.00316.58
7.4.90.0170.00016.58
7.4.80.0130.00619.39
7.4.70.0070.01016.46
7.4.60.0130.00316.45
7.4.50.0030.00616.70
7.4.40.0000.01622.77
7.4.30.0110.00616.58
7.4.00.0030.01214.89
7.3.330.0020.00313.15
7.3.320.0030.00313.13
7.3.310.0040.00416.30
7.3.300.0040.00416.34
7.3.290.0160.00316.31
7.3.280.0050.01316.33
7.3.270.0150.00317.40
7.3.260.0170.00418.24
7.3.250.0090.01416.45
7.3.240.0120.00616.31
7.3.230.0110.00716.46
7.3.210.0120.00916.52
7.3.200.0090.01719.39
7.3.190.0090.00916.24
7.3.180.0130.00716.47
7.3.170.0060.00916.27
7.3.160.0000.01716.49
7.3.120.0100.00714.89
7.2.330.0070.01016.59
7.2.320.0100.01016.70
7.2.310.0120.01216.70
7.2.300.0070.01016.59
7.2.290.0100.01016.63
7.2.60.0090.00616.77
7.2.50.0030.00717.02
7.1.200.0000.01115.67
7.1.70.0060.00916.92
7.1.60.0090.01519.17
7.1.50.0100.01316.99
7.1.00.0070.03022.36
7.0.200.0000.01016.52
7.0.140.0100.06722.09
7.0.60.0030.08719.79
7.0.50.0100.07717.81
7.0.40.0170.06020.23
7.0.30.0400.07020.06
7.0.20.0100.05020.07
7.0.10.0300.07720.07
7.0.00.0000.09020.08
5.6.280.0030.06720.91
5.6.210.0030.08020.71
5.6.200.0130.06718.15
5.6.190.0170.06020.59
5.6.180.0270.03720.39
5.6.170.0230.04720.52
5.6.160.0030.06720.47
5.6.150.0070.05018.25
5.6.140.0030.04318.18
5.6.130.0030.08718.12
5.6.120.0130.07721.11
5.6.110.0030.04321.13
5.6.100.0100.05720.99
5.6.90.0070.06321.02
5.6.80.0100.04720.54
5.6.70.0970.07020.39
5.5.350.0030.08020.42
5.5.340.0030.04317.97
5.5.330.0170.07720.29
5.5.320.4070.04320.30
5.5.310.0230.03320.35
5.5.300.0030.06317.97
5.5.290.0000.04317.99
5.5.280.0070.08320.89
5.5.270.0230.06720.98
5.5.260.0130.04320.79
5.5.250.0000.04720.59
5.5.240.0100.04320.17
5.4.450.0400.03319.52
5.4.440.0470.05719.41
5.4.430.0470.07719.56
5.4.420.0400.03719.54
5.4.410.0430.05719.39
5.4.400.0600.05719.21
5.4.390.0500.06718.95
5.4.380.0600.06019.22
5.4.370.0430.05019.15
5.4.360.0470.03319.31
5.4.350.0530.06718.96
5.4.340.0500.04719.22
5.4.320.0500.05319.22
5.4.310.0400.04319.25
5.4.300.0430.04719.24
5.4.290.0400.03719.09
5.4.280.0330.03719.22
5.4.270.0370.07319.16
5.4.260.0500.06319.19
5.4.250.0430.05319.00
5.4.240.0430.04719.14
5.4.230.0600.05719.19
5.4.220.0600.06019.09
5.4.210.0570.05719.21
5.4.200.0570.06318.94
5.4.190.0500.04319.07
5.4.180.0500.05719.02
5.4.170.0530.06318.80
5.4.160.0500.04719.11
5.4.150.0500.07019.11
5.4.140.0500.05016.52
5.4.130.0470.04716.66
5.4.120.0470.07016.38
5.4.110.0430.04316.27
5.4.100.0430.07016.55
5.4.90.0530.05016.56
5.4.80.0600.03716.50
5.4.70.0600.05716.52
5.4.60.0470.03016.48
5.4.50.0470.04316.51
5.4.40.0500.06316.55
5.4.30.0430.03716.34
5.4.20.0400.05316.43
5.4.10.0500.06016.43
5.4.00.0530.05715.80
5.3.290.0470.04714.67
5.3.280.0530.06714.63
5.3.270.0500.04714.58
5.3.260.0570.06314.58
5.3.250.0570.06314.58
5.3.240.0600.06014.72
5.3.230.0500.06014.57
5.3.220.0570.05714.48
5.3.210.0530.06014.59
5.3.200.0500.06714.65
5.3.190.0470.05714.56
5.3.180.0500.06714.68
5.3.170.0530.04314.65
5.3.160.0370.04314.55
5.3.150.0500.04714.68
5.3.140.0570.06714.55
5.3.130.0430.04714.53
5.3.120.0500.07014.63
5.3.110.0370.04014.66
5.3.100.0430.03313.94
5.3.90.0500.06014.24
5.3.80.0400.03014.13
5.3.70.0400.07014.02
5.3.60.0370.03313.91
5.3.50.0430.06314.00
5.3.40.0430.04314.02
5.3.30.0270.04013.96
5.3.20.0470.05713.74
5.3.10.0700.03713.57
5.3.00.0500.07013.61
5.2.170.0330.05711.20
5.2.160.0330.06011.08
5.2.150.0400.05711.05
5.2.140.0300.05011.26
5.2.130.0400.05311.02
5.2.120.0270.04311.33
5.2.110.0370.02711.11
5.2.100.0530.03311.02
5.2.90.0500.05011.01
5.2.80.0400.05311.02
5.2.70.0470.05311.27
5.2.60.0430.04710.95
5.2.50.0430.04311.12
5.2.40.0330.05310.89
5.2.30.0430.04311.09
5.2.20.0500.04011.18
5.2.10.0400.04710.94
5.2.00.0400.05010.63
5.1.60.0430.04310.15
5.1.50.0330.05010.15
5.1.40.0330.0309.88
5.1.30.0330.02310.41
5.1.20.0530.04010.41
5.1.10.0370.05010.23
5.1.00.0400.04710.13
5.0.50.0170.0409.20
5.0.40.0170.0239.20
5.0.30.0100.0339.20
5.0.20.0130.0209.20
5.0.10.0070.0239.20
5.0.00.0170.0309.20
4.4.90.0200.0279.20
4.4.80.0200.0239.20
4.4.70.0170.0339.20
4.4.60.0200.0209.20
4.4.50.0230.0309.20
4.4.40.0170.0379.20
4.4.30.0170.0179.20
4.4.20.0170.0239.20
4.4.10.0270.0239.20
4.4.00.0170.0309.20
4.3.110.0100.0179.20
4.3.100.0100.0179.20
4.3.90.0100.0179.20
4.3.80.0070.0279.20
4.3.70.0100.0179.20
4.3.60.0130.0239.20
4.3.50.0100.0179.20
4.3.40.0130.0209.20
4.3.30.0070.0139.20
4.3.20.0030.0179.20
4.3.10.0030.0179.20
4.3.00.0070.0179.20

preferences:
44.04 ms | 401 KiB | 5 Q