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(3999);

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)
8.3.60.0160.00018.55
8.3.50.0160.00422.04
8.3.40.0110.00418.82
8.3.30.0140.00719.19
8.3.20.0070.00020.25
8.3.10.0040.00420.37
8.3.00.0080.00019.26
8.2.180.0150.00316.50
8.2.170.0140.00022.96
8.2.160.0070.00720.32
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0040.00422.24
8.2.110.0000.00822.28
8.2.100.0150.00017.72
8.2.90.0080.00019.26
8.2.80.0080.00017.97
8.2.70.0000.00917.63
8.2.60.0050.00318.03
8.2.50.0040.00418.07
8.2.40.0000.00718.19
8.2.30.0080.00019.43
8.2.20.0030.00617.73
8.2.10.0040.00418.03
8.2.00.0000.00717.67
8.1.280.0160.00025.92
8.1.270.0050.00322.05
8.1.260.0000.00726.35
8.1.250.0070.00028.09
8.1.240.0030.00623.75
8.1.230.0070.00319.16
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0060.00317.25
8.1.190.0040.00417.23
8.1.180.0030.00518.10
8.1.170.0030.00518.64
8.1.160.0000.00822.00
8.1.150.0000.00718.88
8.1.140.0050.00217.38
8.1.130.0030.00317.82
8.1.120.0000.00717.34
8.1.110.0040.00417.37
8.1.100.0000.00717.37
8.1.90.0040.00417.45
8.1.80.0000.00717.37
8.1.70.0000.00817.25
8.1.60.0000.00817.58
8.1.50.0040.00417.41
8.1.40.0000.00717.52
8.1.30.0040.00417.65
8.1.20.0040.00417.55
8.1.10.0040.00417.63
8.1.00.0040.00417.47
8.0.300.0030.00318.77
8.0.290.0000.00816.75
8.0.280.0030.00318.45
8.0.270.0030.00317.31
8.0.260.0090.00017.29
8.0.250.0030.00316.97
8.0.240.0040.00417.02
8.0.230.0050.00317.02
8.0.220.0000.00716.88
8.0.210.0050.00216.97
8.0.200.0000.00717.05
8.0.190.0000.00716.91
8.0.180.0000.00716.97
8.0.170.0040.00417.01
8.0.160.0080.00017.04
8.0.150.0000.00716.95
8.0.140.0000.00816.90
8.0.130.0000.00813.33
8.0.120.0040.00416.95
8.0.110.0000.00816.96
8.0.100.0000.00716.82
8.0.90.0030.00516.77
8.0.80.0000.01516.89
8.0.70.0020.00516.84
8.0.60.0000.00716.86
8.0.50.0040.00416.79
8.0.30.0080.01217.21
8.0.20.0080.01117.40
8.0.10.0050.00217.11
8.0.00.0090.00916.92
7.4.330.0020.00215.00
7.4.320.0030.00316.59
7.4.300.0000.00616.40
7.4.290.0030.00316.35
7.4.280.0070.00016.43
7.4.270.0050.00216.37
7.4.260.0070.00016.54
7.4.250.0030.00516.45
7.4.240.0050.00216.50
7.4.230.0050.00216.49
7.4.220.0090.00916.63
7.4.210.0120.00316.45
7.4.200.0070.00016.67
7.4.160.0080.00816.46
7.4.150.0040.01417.40
7.4.140.0070.01017.86
7.4.130.0090.00916.59
7.4.120.0130.00516.48
7.4.110.0080.00816.61
7.4.100.0100.00616.66
7.4.90.0100.00716.40
7.4.80.0110.01119.39
7.4.70.0130.00316.36
7.4.60.0080.00816.58
7.4.50.0000.00816.55
7.4.40.0100.01316.61
7.4.30.0130.00716.79
7.4.00.0070.00714.78
7.3.330.0000.00513.29
7.3.320.0030.00313.33
7.3.310.0070.00016.58
7.3.300.0070.00016.29
7.3.290.0030.01016.42
7.3.280.0050.01116.38
7.3.270.0170.00017.40
7.3.260.0040.01316.69
7.3.250.0120.00516.60
7.3.240.0080.00816.32
7.3.230.0070.01416.39
7.3.210.0100.00616.55
7.3.200.0070.01119.39
7.3.190.0080.01216.55
7.3.180.0120.00616.32
7.3.170.0030.01316.56
7.3.160.0090.00616.55
7.2.330.0140.00716.61
7.2.320.0140.00316.57
7.2.310.0060.01016.59
7.2.300.0150.00916.84
7.2.290.0040.01916.78
7.2.60.0040.00816.92
7.2.00.0040.00819.34
7.1.200.0070.00715.63
7.1.100.0040.00717.93
7.1.70.0060.00317.26
7.1.60.0030.02019.12
7.1.50.0040.01116.84
7.1.00.0070.07322.31
7.0.200.0030.00616.92
7.0.140.0000.07722.16
7.0.60.0100.08019.92
7.0.50.0070.08017.94
7.0.40.0070.04720.09
7.0.30.0300.06720.18
7.0.20.0200.08720.15
7.0.10.0130.04320.05
7.0.00.0100.05320.06
5.6.280.0070.07020.89
5.6.210.0130.07320.66
5.6.200.0130.08018.22
5.6.190.0100.07720.59
5.6.180.0230.06720.67
5.6.170.0370.07320.47
5.6.160.0030.07320.49
5.6.150.0100.06318.18
5.6.140.0100.03718.18
5.6.130.0130.04718.22
5.6.120.0000.04321.12
5.6.110.0230.07321.00
5.6.100.0030.06721.00
5.6.90.0030.09021.00
5.6.80.0070.03720.39
5.5.350.4270.04320.28
5.5.340.0170.07018.07
5.5.330.0130.07720.27
5.5.320.0470.07020.35
5.5.310.0130.05020.33
5.5.300.0030.05017.94
5.5.290.0000.04317.98
5.5.280.0100.05020.85
5.5.270.0030.05020.88
5.5.260.0100.07720.87
5.5.250.0170.06320.70
5.5.240.0030.06320.13
5.4.450.0230.05019.45
5.4.440.0500.04319.52
5.4.430.0500.04719.45
5.4.420.0530.03719.56
5.4.410.0300.05019.45
5.4.400.0170.03719.45
5.4.390.0370.03319.45
5.4.380.0300.06718.84
5.4.370.0800.06318.80
5.4.360.1000.05318.63
5.4.350.1030.05318.56
5.4.340.1470.07018.84
5.4.320.0060.03612.50
5.4.310.0020.04212.50
5.4.300.0080.04012.50
5.4.290.0050.04512.50
5.4.280.0060.03612.40
5.4.270.0060.04312.40
5.4.260.0050.04512.40
5.4.250.0050.03912.40
5.4.240.0090.03312.40
5.4.230.0080.03512.39
5.4.220.0070.03612.39
5.4.210.0060.03512.39
5.4.200.0090.03712.39
5.4.190.0020.03912.39
5.4.180.0070.03512.39
5.4.170.0070.03512.40
5.4.160.0030.03712.39
5.4.150.0030.03712.39
5.4.140.0050.04212.07
5.4.130.0070.03512.06
5.4.120.0050.03612.02
5.4.110.0060.03512.01
5.4.100.0040.03712.01
5.4.90.0090.03412.01
5.4.80.0050.03812.01
5.4.70.0040.03712.00
5.4.60.0110.03112.01
5.4.50.0080.03412.01
5.4.40.0050.03712.00
5.4.30.0080.03411.99
5.4.20.0060.03611.99
5.4.10.0050.03411.99
5.4.00.0050.03611.48
5.3.290.0090.03612.80
5.3.280.0070.03612.71
5.3.270.0070.03712.72
5.3.260.0040.04112.72
5.3.250.0060.03712.72
5.3.240.0060.03912.72
5.3.230.0060.03812.71
5.3.220.0070.03712.68
5.3.210.0050.04312.68
5.3.200.0100.03312.68
5.3.190.0060.03712.68
5.3.180.0050.03612.68
5.3.170.0090.03312.67
5.3.160.0060.03612.68
5.3.150.0090.04012.68
5.3.140.0070.04112.66
5.3.130.0060.03812.66
5.3.120.0060.03812.66
5.3.110.0050.04012.66
5.3.100.0100.03412.12
5.3.90.0070.03612.10
5.3.80.0070.03712.09
5.3.70.0070.03512.09
5.3.60.0040.03812.07
5.3.50.0030.03912.02
5.3.40.0080.03512.02
5.3.30.0040.03811.98
5.3.20.0060.03511.76
5.3.10.0040.03611.73
5.3.00.0040.03711.72
5.2.170.0020.0329.22
5.2.160.0080.0289.22
5.2.150.0070.0289.22
5.2.140.0040.0309.21
5.2.130.0080.0259.18
5.2.120.0070.0339.18
5.2.110.0070.0289.18
5.2.100.0050.0359.18
5.2.90.0020.0319.18
5.2.80.0050.0299.18
5.2.70.0020.0329.18
5.2.60.0060.0409.13
5.2.50.0070.0279.10
5.2.40.0040.0289.07
5.2.30.0040.0309.05
5.2.20.0060.0279.04
5.2.10.0040.0288.95
5.2.00.0030.0308.81
5.1.60.0040.0238.09
5.1.50.0060.0228.09
5.1.40.0020.0268.07
5.1.30.0030.0268.42
5.1.20.0040.0298.45
5.1.10.0050.0258.17
5.1.00.0030.0268.16
5.0.50.0050.0246.64
5.0.40.0030.0266.51
5.0.30.0040.0316.32
5.0.20.0030.0226.29
5.0.10.0030.0206.26
5.0.00.0060.0286.25
4.4.90.0040.0144.78
4.4.80.0020.0154.76
4.4.70.0030.0154.75
4.4.60.0040.0184.76
4.4.50.0050.0134.77
4.4.40.0040.0244.71
4.4.30.0040.0144.76
4.4.20.0020.0174.85
4.4.10.0020.0214.84
4.4.00.0030.0264.76
4.3.110.0040.0204.67
4.3.100.0010.0174.66
4.3.90.0030.0154.63
4.3.80.0030.0234.58
4.3.70.0030.0164.63
4.3.60.0020.0184.63
4.3.50.0030.0154.63
4.3.40.0030.0244.53
4.3.30.0010.0183.31
4.3.20.0000.0183.28
4.3.10.0000.0173.25
4.3.00.0030.01719.45

preferences:
49.69 ms | 400 KiB | 5 Q