3v4l.org

run code in 300+ PHP versions simultaneously
<?php function arabic2roman($N) { $c = 'IVXLCDM'; for ($a = 5, $b = $s = ''; $N; $b++, $a ^= 7) for ($o = $N % $a, $N = $N / $a ^ 0; $o--; $s = $c[(($o > 2 ? $b + $N - ($N &= -2) + $o = 1 : $b)?:0)] . $s) ; return $s; } echo arabic2roman(4999);

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)
8.3.60.0140.00318.43
8.3.50.0140.00722.02
8.3.40.0100.00718.79
8.3.30.0070.00719.04
8.3.20.0070.00020.10
8.3.10.0080.00020.70
8.3.00.0040.00419.50
8.2.180.0100.01016.63
8.2.170.0100.00322.96
8.2.160.0070.00720.39
8.2.150.0080.00024.18
8.2.140.0050.00324.66
8.2.130.0040.00426.16
8.2.120.0050.00322.26
8.2.110.0040.00422.18
8.2.100.0060.00917.72
8.2.90.0020.00619.18
8.2.80.0030.00517.97
8.2.70.0040.00417.62
8.2.60.0040.00417.93
8.2.50.0000.00918.07
8.2.40.0030.00518.02
8.2.30.0000.00821.10
8.2.20.0000.00817.80
8.2.10.0060.00318.17
8.2.00.0040.00417.67
8.1.280.0090.00625.92
8.1.270.0000.00822.05
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0040.00423.82
8.1.230.0060.00619.17
8.1.220.0080.00017.74
8.1.210.0080.00018.77
8.1.200.0030.00617.35
8.1.190.0000.00817.36
8.1.180.0050.00318.10
8.1.170.0060.00318.59
8.1.160.0050.00322.01
8.1.150.0000.00718.95
8.1.140.0000.00817.38
8.1.130.0070.00017.74
8.1.120.0000.00717.41
8.1.110.0000.00717.36
8.1.100.0000.00717.32
8.1.90.0030.00317.29
8.1.80.0030.00317.35
8.1.70.0040.00417.37
8.1.60.0030.00517.56
8.1.50.0060.00317.56
8.1.40.0030.00617.52
8.1.30.0040.00417.64
8.1.20.0030.00517.52
8.1.10.0040.00417.49
8.1.00.0040.00417.49
8.0.300.0070.00018.77
8.0.290.0000.00816.63
8.0.280.0030.00518.37
8.0.270.0000.00717.24
8.0.260.0030.00317.26
8.0.250.0070.00017.00
8.0.240.0000.00717.03
8.0.230.0000.00717.07
8.0.220.0000.00716.92
8.0.210.0000.00716.96
8.0.200.0070.00016.97
8.0.190.0030.00316.96
8.0.180.0000.00716.89
8.0.170.0040.00416.99
8.0.160.0040.00416.91
8.0.150.0000.00716.85
8.0.140.0040.00416.79
8.0.130.0030.00313.36
8.0.120.0000.00716.83
8.0.110.0000.00716.85
8.0.100.0040.00416.84
8.0.90.0040.00416.89
8.0.80.0060.00916.89
8.0.70.0050.00216.83
8.0.60.0070.00016.96
8.0.50.0000.00716.83
8.0.30.0130.00717.11
8.0.20.0110.00817.40
8.0.10.0040.00416.94
8.0.00.0100.01016.83
7.4.330.0050.00015.09
7.4.320.0030.00316.59
7.4.300.0000.00616.51
7.4.290.0030.00316.43
7.4.280.0000.00816.48
7.4.270.0040.00416.50
7.4.260.0000.00716.47
7.4.250.0000.00816.57
7.4.240.0020.00516.54
7.4.230.0050.00216.24
7.4.220.0070.01016.67
7.4.210.0030.01116.55
7.4.200.0050.00316.36
7.4.160.0040.01216.48
7.4.150.0120.00617.40
7.4.140.0100.00917.86
7.4.130.0080.00916.54
7.4.120.0120.00516.52
7.4.110.0070.01016.50
7.4.100.0140.01016.49
7.4.90.0130.00316.59
7.4.80.0060.01319.39
7.4.70.0060.01316.64
7.4.60.0060.01016.48
7.4.50.0080.00016.41
7.4.40.0130.00316.48
7.4.30.0090.00916.69
7.4.00.0030.01315.02
7.3.330.0060.00013.39
7.3.320.0030.00313.43
7.3.310.0030.00316.27
7.3.300.0070.00016.24
7.3.290.0080.00616.47
7.3.280.0050.01216.35
7.3.270.0070.01017.40
7.3.260.0110.00516.36
7.3.250.0080.00916.41
7.3.240.0100.01016.44
7.3.230.0070.01016.39
7.3.210.0180.00016.49
7.3.200.0060.01519.39
7.3.190.0070.01016.50
7.3.180.0110.00616.43
7.3.170.0040.01116.42
7.3.160.0070.00816.52
7.3.10.0070.00716.71
7.3.00.0110.00016.57
7.2.330.0060.01316.64
7.2.320.0070.01416.71
7.2.310.0060.01016.67
7.2.300.0180.00616.54
7.2.290.0070.01316.63
7.2.130.0130.00317.07
7.2.120.0030.00916.76
7.2.110.0070.00716.86
7.2.100.0060.01016.95
7.2.90.0080.00416.94
7.2.80.0090.00616.94
7.2.70.0110.00416.82
7.2.60.0070.00816.84
7.2.50.0090.00616.77
7.2.40.0040.00816.95
7.2.30.0030.01316.96
7.2.20.0040.01116.54
7.2.10.0120.00316.84
7.2.00.0040.01118.37
7.1.250.0090.00615.86
7.1.200.0030.01215.87
7.1.100.0000.01217.97
7.1.70.0090.00017.22
7.1.60.0030.01919.12
7.1.50.0070.01416.77
7.1.00.0000.08022.32
7.0.200.0000.00916.88
7.0.140.0000.07721.99
7.0.60.0100.04719.93
7.0.50.0170.07017.86
7.0.40.0000.04720.11
7.0.30.0270.03720.30
7.0.20.0400.07320.25
7.0.10.0170.07720.33
7.0.00.0100.04020.18
5.6.280.0100.06720.93
5.6.210.0170.07020.76
5.6.200.0070.03718.16
5.6.190.0230.06320.33
5.6.180.0300.07720.34
5.6.170.0300.08320.47
5.6.160.0070.08320.52
5.6.150.0000.06018.17
5.6.140.0100.07718.18
5.6.130.0200.07318.18
5.6.120.0030.06320.98
5.6.110.0130.08320.97
5.6.100.0030.08021.09
5.6.90.0030.06721.04
5.6.80.0100.07720.53
5.6.70.3800.04020.48
5.5.350.0130.07320.29
5.5.340.0000.05317.98
5.5.330.0070.06320.13
5.5.320.0270.08320.30
5.5.310.0230.05320.41
5.5.300.0030.04717.95
5.5.290.0030.08318.08
5.5.280.0030.04020.88
5.5.270.0030.07320.89
5.5.260.0170.07320.84
5.5.250.0030.04020.59
5.5.240.0030.07020.37
5.4.450.0370.05319.45
5.4.440.0170.04019.50
5.4.430.0270.05019.45
5.4.420.0200.04319.57
5.4.410.0370.04719.50
5.4.400.0300.04019.45
5.4.390.0470.04019.45
5.4.380.0230.06318.57
5.4.370.0330.05318.80
5.4.360.0370.05318.53
5.4.350.0300.07318.46
5.4.340.0330.07018.63
5.4.320.0080.04012.51
5.4.310.0070.03712.50
5.4.300.0030.04312.50
5.4.290.0040.03812.50
5.4.280.0030.03712.40
5.4.270.0070.03512.40
5.4.260.0090.03412.40
5.4.250.0060.03912.40
5.4.240.0090.04012.40
5.4.230.0060.03812.39
5.4.220.0060.03612.39
5.4.210.0030.03812.39
5.4.200.0050.04212.39
5.4.190.0070.03512.39
5.4.180.0050.03712.38
5.4.170.0070.03512.40
5.4.160.0080.03312.39
5.4.150.0050.03612.38
5.4.140.0080.03512.07
5.4.130.0060.03412.06
5.4.120.0070.03312.02
5.4.110.0070.03312.02
5.4.100.0050.03612.01
5.4.90.0050.04012.01
5.4.80.0060.03612.01
5.4.70.0070.03212.01
5.4.60.0050.03612.01
5.4.50.0060.03812.01
5.4.40.0080.03712.00
5.4.30.0020.04912.00
5.4.20.0070.03411.99
5.4.10.0070.03712.00
5.4.00.0090.03311.48
5.3.290.0030.04412.80
5.3.280.0070.03712.71
5.3.270.0060.03912.73
5.3.260.0030.04212.72
5.3.250.0060.03612.72
5.3.240.0050.03712.72
5.3.230.0070.03612.71
5.3.220.0070.03512.68
5.3.210.0040.04012.68
5.3.200.0100.03612.68
5.3.190.0050.03812.68
5.3.180.0060.03612.67
5.3.170.0040.03812.66
5.3.160.0070.03512.67
5.3.150.0070.03512.68
5.3.140.0070.03812.66
5.3.130.0070.03812.66
5.3.120.0060.03912.66
5.3.110.0080.04112.66
5.3.100.0060.03612.12
5.3.90.0030.04012.10
5.3.80.0070.03512.09
5.3.70.0090.03312.09
5.3.60.0050.03712.08
5.3.50.0060.03512.02
5.3.40.0070.03512.02
5.3.30.0090.03411.98
5.3.20.0040.03711.76
5.3.10.0050.03611.73
5.3.00.0030.03911.72
5.2.170.0070.0289.22
5.2.160.0040.0309.22
5.2.150.0050.0309.22
5.2.140.0040.0319.21
5.2.130.0040.0309.18
5.2.120.0040.0299.18
5.2.110.0040.0299.19
5.2.100.0040.0289.18
5.2.90.0060.0289.18
5.2.80.0050.0319.18
5.2.70.0030.0349.18
5.2.60.0030.0319.13
5.2.50.0050.0299.11
5.2.40.0060.0289.07
5.2.30.0020.0349.05
5.2.20.0040.0299.04
5.2.10.0070.0258.95
5.2.00.0050.0278.80
5.1.60.0050.0238.09
5.1.50.0060.0238.09
5.1.40.0030.0258.07
5.1.30.0040.0288.43
5.1.20.0050.0268.44
5.1.10.0030.0298.17
5.1.00.0060.0258.16
5.0.50.0070.0256.64
5.0.40.0100.0156.51
5.0.30.0030.0316.32
5.0.20.0040.0186.29
5.0.10.0050.0246.26
5.0.00.0060.0286.25
4.4.90.0030.0154.77
4.4.80.0050.0134.75
4.4.70.0040.0144.76
4.4.60.0020.0154.76
4.4.50.0020.0164.77
4.4.40.0020.0264.71
4.4.30.0050.0134.76
4.4.20.0030.0154.84
4.4.10.0020.0174.84
4.4.00.0060.0254.76
4.3.110.0010.0184.66
4.3.100.0050.0134.67
4.3.90.0030.0164.64
4.3.80.0040.0244.58
4.3.70.0020.0154.63
4.3.60.0030.0144.63
4.3.50.0030.0154.63
4.3.40.0040.0224.53
4.3.30.0010.0173.31
4.3.20.0000.0183.28
4.3.10.0010.0173.25
4.3.00.0170.01719.45

preferences:
41.37 ms | 401 KiB | 5 Q