3v4l.org

run code in 300+ PHP versions simultaneously
<?php function roman_number($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 roman_number(542);

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)
8.3.60.0100.00318.68
8.3.50.0140.00521.11
8.3.40.0110.00418.76
8.3.30.0100.01019.17
8.3.20.0040.00420.39
8.3.10.0050.00320.48
8.3.00.0100.00017.75
8.2.180.0120.00616.75
8.2.170.0150.00022.96
8.2.160.0030.01020.53
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0050.00322.23
8.2.110.0040.00422.07
8.2.100.0080.00417.84
8.2.90.0060.00319.39
8.2.80.0080.00017.97
8.2.70.0060.00617.63
8.2.60.0060.00318.05
8.2.50.0040.00418.07
8.2.40.0090.00018.31
8.2.30.0040.00419.42
8.2.20.0070.00017.74
8.2.10.0000.00818.00
8.2.00.0040.00417.75
8.1.280.0040.01425.92
8.1.270.0090.00022.05
8.1.260.0030.00526.35
8.1.250.0040.00428.09
8.1.240.0040.00422.09
8.1.230.0080.00418.96
8.1.220.0040.00417.91
8.1.210.0040.00418.77
8.1.200.0030.00717.23
8.1.190.0040.00417.35
8.1.180.0040.00418.10
8.1.170.0090.00018.57
8.1.160.0040.00422.01
8.1.150.0070.00018.91
8.1.140.0050.00217.43
8.1.130.0040.00417.83
8.1.120.0060.00317.35
8.1.110.0040.00417.35
8.1.100.0040.00417.38
8.1.90.0040.00417.45
8.1.80.0040.00417.41
8.1.70.0030.00317.33
8.1.60.0030.00617.43
8.1.50.0000.00917.41
8.1.40.0000.01017.59
8.1.30.0030.00617.46
8.1.20.0000.00717.63
8.1.10.0040.00417.47
8.1.00.0030.00517.33
8.0.300.0030.00318.77
8.0.290.0030.00616.63
8.0.280.0040.00418.48
8.0.270.0030.00317.24
8.0.260.0080.00017.24
8.0.250.0000.00716.93
8.0.240.0040.00416.94
8.0.230.0070.00016.88
8.0.220.0020.00516.74
8.0.210.0070.00016.76
8.0.200.0030.00316.97
8.0.190.0030.00616.93
8.0.180.0000.00716.94
8.0.170.0000.00716.93
8.0.160.0040.00416.96
8.0.150.0040.00316.89
8.0.140.0050.00216.71
8.0.130.0000.00513.38
8.0.120.0040.00416.83
8.0.110.0040.00416.89
8.0.100.0050.00316.92
8.0.90.0000.00816.80
8.0.80.0070.01416.83
8.0.70.0040.00416.70
8.0.60.0070.00017.00
8.0.50.0090.00016.83
8.0.30.0140.00717.17
8.0.20.0150.00517.40
8.0.10.0000.00716.89
8.0.00.0070.01016.64
7.4.330.0040.00415.00
7.4.320.0030.00316.50
7.4.300.0040.00416.56
7.4.290.0080.00016.60
7.4.280.0070.00016.50
7.4.270.0000.00716.45
7.4.260.0070.00016.55
7.4.250.0070.00016.47
7.4.240.0020.00516.59
7.4.230.0070.00016.67
7.4.220.0130.01316.53
7.4.210.0090.00516.53
7.4.200.0000.00716.58
7.4.160.0110.01116.54
7.4.150.0040.01517.40
7.4.140.0110.00917.86
7.4.130.0110.00616.45
7.4.120.0080.00916.43
7.4.110.0070.01016.36
7.4.100.0070.01016.50
7.4.90.0090.00916.52
7.4.80.0030.01519.39
7.4.70.0120.00616.62
7.4.60.0130.00316.56
7.4.50.0040.00416.62
7.4.40.0000.01616.61
7.4.30.0040.01516.36
7.4.00.0080.00814.97
7.3.330.0060.00013.31
7.3.320.0000.00513.34
7.3.310.0030.00316.26
7.3.300.0000.00616.21
7.3.290.0070.00716.30
7.3.280.0060.01516.38
7.3.270.0070.01117.40
7.3.260.0130.01016.63
7.3.250.0090.00816.52
7.3.240.0160.00016.58
7.3.230.0110.00516.67
7.3.210.0060.01116.36
7.3.200.0120.00919.39
7.3.190.0110.00716.56
7.3.180.0080.00816.52
7.3.170.0110.00716.43
7.3.160.0150.00016.55
7.3.120.0070.01114.82
7.3.110.0040.00814.99
7.3.100.0070.00714.49
7.3.90.0040.00814.86
7.3.80.0040.01114.75
7.3.70.0060.00914.55
7.3.60.0000.01614.47
7.3.50.0050.00514.62
7.3.40.0030.01014.87
7.3.30.0000.01214.89
7.3.20.0000.01516.41
7.3.10.0070.01016.66
7.3.00.0000.01316.82
7.2.330.0030.01416.68
7.2.320.0030.01416.86
7.2.310.0100.00716.57
7.2.300.0130.00316.57
7.2.290.0120.00616.76
7.2.250.0060.01215.09
7.2.240.0040.01215.24
7.2.230.0070.00715.22
7.2.220.0000.01715.06
7.2.210.0030.01315.22
7.2.200.0040.01415.21
7.2.190.0090.00914.99
7.2.180.0050.00515.21
7.2.170.0000.01715.10
7.1.330.0040.01115.71
7.1.320.0070.00715.95
7.1.310.0000.01315.73
7.1.300.0100.00715.65
7.1.290.0000.01315.93
7.1.280.0100.00616.01
7.1.270.0060.00315.75
7.1.260.0040.00715.73
7.1.70.0030.01017.32
7.1.60.0110.01419.12
7.1.50.0100.01016.69
7.1.00.0100.07022.45
7.0.200.0030.00516.78
7.0.140.0030.07321.92
7.0.60.0200.07019.96
7.0.50.0100.08017.85
7.0.40.0070.08320.10
7.0.30.0530.07320.06
7.0.20.0270.08320.16
7.0.10.0100.06320.15
7.0.00.0130.04720.16
5.6.280.0070.07021.07
5.6.210.0130.06720.48
5.6.200.0100.06718.29
5.6.190.0070.07720.65
5.6.180.0270.03720.64
5.6.170.0270.05720.55
5.6.160.0170.07320.44
5.6.150.0030.08018.23
5.6.140.0100.03718.27
5.6.130.0070.03718.21
5.6.120.0100.07721.08
5.6.110.0100.03721.07
5.6.100.0100.08321.09
5.6.90.0030.05320.98
5.6.80.0130.08020.52
5.6.70.0200.06320.38
5.5.350.0070.07320.48
5.5.340.0170.07317.99
5.5.330.0070.06720.13
5.5.320.0370.06020.31
5.5.310.0430.07020.27
5.5.300.0070.08317.94
5.5.290.0130.04717.94
5.5.280.0030.04320.89
5.5.270.0070.05020.65
5.5.260.0030.09020.80
5.5.250.0170.08020.69
5.5.240.0100.07320.19
5.4.450.0200.06319.49
5.4.440.0670.07719.35
5.4.430.0170.05019.47
5.4.420.0730.06319.55
5.4.410.0700.05019.57
5.4.400.0100.05019.00
5.4.390.0770.05719.06
5.4.380.0300.05018.63
5.4.370.0430.06718.80
5.4.360.0300.07018.64
5.4.350.0270.05018.86
5.4.340.0230.05718.51
5.4.320.0060.03612.50
5.4.310.0030.04012.50
5.4.300.0060.03512.50
5.4.290.0080.03512.50
5.4.280.0050.03612.40
5.4.270.0050.03912.40
5.4.260.0040.03912.39
5.4.250.0060.03812.40
5.4.240.0110.03212.40
5.4.230.0070.05112.39
5.4.220.0070.03412.39
5.4.210.0050.03512.39
5.4.200.0060.03712.39
5.4.190.0070.03612.39
5.4.180.0080.03412.38
5.4.170.0100.03212.40
5.4.160.0050.03712.39
5.4.150.0060.03712.39
5.4.140.0050.03912.07
5.4.130.0070.04712.06
5.4.120.0050.03612.02
5.4.110.0060.03712.01
5.4.100.0060.03512.02
5.4.90.0060.03612.01
5.4.80.0080.03512.01
5.4.70.0060.03412.01
5.4.60.0050.03512.01
5.4.50.0050.03512.01
5.4.40.0050.03512.00
5.4.30.0030.04012.00
5.4.20.0070.03411.99
5.4.10.0070.03312.00
5.4.00.0050.03511.48
5.3.290.0100.04112.80
5.3.280.0060.05412.71
5.3.270.0080.05512.73
5.3.260.0130.04112.72
5.3.250.0100.04212.72
5.3.240.0050.03912.72
5.3.230.0050.04112.71
5.3.220.0060.03712.68
5.3.210.0040.04012.68
5.3.200.0100.04912.68
5.3.190.0060.04612.68
5.3.180.0090.03812.68
5.3.170.0080.03812.67
5.3.160.0060.03612.67
5.3.150.0090.03312.67
5.3.140.0030.03812.66
5.3.130.0060.03812.66
5.3.120.0060.03812.65
5.3.110.0080.04712.66
5.3.100.0060.04212.12
5.3.90.0060.03612.10
5.3.80.0080.03912.09
5.3.70.0050.03612.09
5.3.60.0100.03112.08
5.3.50.0050.03612.02
5.3.40.0060.03612.02
5.3.30.0080.03211.98
5.3.20.0050.03711.76
5.3.10.0040.03611.73
5.3.00.0060.03611.71
5.2.170.0030.0319.21
5.2.160.0030.0299.21
5.2.150.0020.0339.22
5.2.140.0010.0339.21
5.2.130.0050.0289.18
5.2.120.0040.0299.18
5.2.110.0050.0349.19
5.2.100.0060.0269.18
5.2.90.0040.0299.18
5.2.80.0060.0289.18
5.2.70.0070.0279.18
5.2.60.0040.0329.13
5.2.50.0040.0309.09
5.2.40.0040.0289.07
5.2.30.0030.0319.05
5.2.20.0060.0279.04
5.2.10.0050.0348.95
5.2.00.0040.0308.81
5.1.60.0060.0248.09
5.1.50.0020.0278.09
5.1.40.0060.0248.07
5.1.30.0080.0318.42
5.1.20.0050.0258.44
5.1.10.0020.0288.17
5.1.00.0060.0358.17
5.0.50.0030.0266.65
5.0.40.0040.0196.50
5.0.30.0030.0316.32
5.0.20.0040.0186.29
5.0.10.0030.0196.26
5.0.00.0030.0306.25
4.4.90.0040.0144.78
4.4.80.0050.0124.76
4.4.70.0030.0154.76
4.4.60.0040.0144.75
4.4.50.0050.0134.77
4.4.40.0020.0264.70
4.4.30.0020.0164.76
4.4.20.0050.0134.85
4.4.10.0020.0164.85
4.4.00.0030.0244.76
4.3.110.0030.0154.67
4.3.100.0050.0134.67
4.3.90.0030.0134.63
4.3.80.0020.0244.59
4.3.70.0010.0164.63
4.3.60.0020.0144.62
4.3.50.0030.0144.63
4.3.40.0020.0244.54
4.3.30.0020.0153.31
4.3.20.0030.0153.29
4.3.10.0040.0143.24
4.3.00.0000.0277.39

preferences:
45.33 ms | 401 KiB | 5 Q