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(9999);

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)
8.3.70.0090.00618.43
8.3.60.0100.00718.81
8.3.50.0150.00422.06
8.3.40.0070.00718.79
8.3.30.0110.00419.25
8.3.20.0040.00420.20
8.3.10.0050.00320.66
8.3.00.0080.00019.38
8.2.180.0040.01216.63
8.2.170.0040.01122.96
8.2.160.0070.00720.40
8.2.150.0070.00024.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0040.00422.23
8.2.110.0060.00322.26
8.2.100.0120.00017.97
8.2.90.0040.00419.17
8.2.80.0040.00417.97
8.2.70.0060.00317.50
8.2.60.0040.00418.03
8.2.50.0080.00018.07
8.2.40.0000.00818.19
8.2.30.0080.00019.33
8.2.20.0040.00417.73
8.2.10.0040.00418.09
8.2.00.0000.00817.74
8.1.280.0090.00925.92
8.1.270.0040.00422.14
8.1.260.0000.00726.35
8.1.250.0000.00728.09
8.1.240.0030.00622.14
8.1.230.0040.00719.07
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0060.00317.23
8.1.190.0050.00317.35
8.1.180.0090.00018.10
8.1.170.0040.00418.51
8.1.160.0040.00422.00
8.1.150.0040.00418.88
8.1.140.0040.00417.34
8.1.130.0000.00717.93
8.1.120.0000.00817.30
8.1.110.0070.00017.38
8.1.100.0000.00717.31
8.1.90.0000.00717.41
8.1.80.0040.00417.39
8.1.70.0070.00017.29
8.1.60.0040.00417.59
8.1.50.0080.00017.52
8.1.40.0080.00017.57
8.1.30.0000.00817.55
8.1.20.0030.00517.50
8.1.10.0080.00017.46
8.1.00.0080.00017.52
8.0.300.0040.00418.77
8.0.290.0040.00416.88
8.0.280.0030.00318.33
8.0.270.0030.00317.26
8.0.260.0000.00717.24
8.0.250.0070.00017.05
8.0.240.0000.00816.97
8.0.230.0000.00716.91
8.0.220.0030.00316.95
8.0.210.0040.00416.96
8.0.200.0070.00016.98
8.0.190.0040.00416.98
8.0.180.0040.00416.95
8.0.170.0030.00516.99
8.0.160.0070.00016.90
8.0.150.0070.00016.88
8.0.140.0030.00616.44
8.0.130.0000.00613.46
8.0.120.0000.00816.79
8.0.110.0040.00416.79
8.0.100.0040.00416.89
8.0.90.0040.00416.85
8.0.80.0120.00316.91
8.0.70.0020.00516.79
8.0.60.0070.00016.99
8.0.50.0040.00416.82
8.0.30.0160.00417.21
8.0.20.0150.00517.40
8.0.10.0040.00416.85
8.0.00.0110.00616.83
7.4.330.0000.00615.00
7.4.320.0000.00616.57
7.4.300.0030.00316.56
7.4.290.0030.00316.44
7.4.280.0000.00716.59
7.4.270.0030.00316.60
7.4.260.0000.00716.61
7.4.250.0030.00516.38
7.4.240.0020.00616.62
7.4.230.0030.00316.30
7.4.220.0040.01416.70
7.4.210.0030.01216.42
7.4.200.0020.00516.38
7.4.160.0040.01516.85
7.4.150.0140.00717.40
7.4.140.0070.01017.86
7.4.130.0090.01016.41
7.4.120.0100.00616.50
7.4.110.0060.01116.59
7.4.100.0130.00316.60
7.4.90.0100.00716.57
7.4.80.0130.00619.39
7.4.70.0100.00616.37
7.4.60.0070.01016.69
7.4.50.0040.00416.27
7.4.40.0100.00616.56
7.4.30.0140.00716.66
7.4.00.0100.00715.01
7.3.330.0030.00313.29
7.3.320.0030.00313.42
7.3.310.0050.00316.43
7.3.300.0070.00016.37
7.3.290.0030.01016.33
7.3.280.0060.00916.43
7.3.270.0070.01017.40
7.3.260.0080.00816.46
7.3.250.0130.00516.67
7.3.240.0130.01016.61
7.3.230.0150.00416.42
7.3.210.0120.00616.48
7.3.200.0080.00819.39
7.3.190.0080.00816.61
7.3.180.0070.01016.56
7.3.170.0000.01616.55
7.3.160.0090.00616.50
7.3.120.0050.01415.00
7.3.110.0080.01014.84
7.3.100.0070.01014.77
7.3.90.0030.00914.76
7.3.80.0040.01314.97
7.3.70.0050.01014.81
7.3.60.0040.00814.80
7.3.50.0020.01114.79
7.3.40.0080.00614.87
7.3.30.0020.01414.86
7.3.20.0090.00816.72
7.3.10.0060.01016.67
7.3.00.0050.00816.63
7.2.330.0160.00716.43
7.2.320.0060.01216.71
7.2.310.0140.00716.85
7.2.300.0090.01216.63
7.2.290.0070.01016.72
7.2.250.0060.01115.17
7.2.240.0120.00815.10
7.2.230.0040.01114.84
7.2.220.0040.00715.11
7.2.210.0110.00314.79
7.2.200.0090.00515.24
7.2.190.0040.01214.96
7.2.180.0070.00714.96
7.2.170.0050.00915.04
7.2.60.0100.00316.95
7.2.00.0060.00619.34
7.1.330.0100.00315.90
7.1.320.0040.01015.99
7.1.310.0020.00915.82
7.1.300.0050.00715.64
7.1.290.0030.00715.66
7.1.280.0070.00815.77
7.1.270.0060.00815.72
7.1.260.0070.00815.78
7.1.200.0060.00615.89
7.1.100.0060.00618.27
7.1.70.0030.00717.16
7.1.60.0160.00619.12
7.1.50.0100.01317.09
7.1.00.0030.07722.26
7.0.200.0000.00816.60
7.0.140.0100.06722.15
7.0.60.0170.07319.94
7.0.50.0070.08317.86
7.0.40.0070.07020.24
7.0.30.0270.07720.33
7.0.20.0270.07320.19
7.0.10.0130.03320.33
7.0.00.0070.09020.16
5.6.280.0070.07021.12
5.6.210.0070.08320.57
5.6.200.0030.07018.16
5.6.190.0070.08320.47
5.6.180.0230.05320.48
5.6.170.0370.06720.48
5.6.160.0200.08020.43
5.6.150.0070.04718.16
5.6.140.0070.03718.18
5.6.130.0000.08718.27
5.6.120.0000.04320.98
5.6.110.0170.07721.14
5.6.100.0130.07720.99
5.6.90.0030.08720.97
5.6.80.0100.03320.34
5.5.350.4230.04020.36
5.5.340.0100.06018.08
5.5.330.0030.09020.47
5.5.320.0430.07020.24
5.5.310.0370.07020.36
5.5.300.0070.07718.02
5.5.290.0030.04017.99
5.5.280.0170.04320.85
5.5.270.0070.05720.84
5.5.260.0070.07320.96
5.5.250.0100.08720.78
5.5.240.0100.04720.35
5.4.450.0630.04719.46
5.4.440.0900.05719.45
5.4.430.0470.04719.45
5.4.420.0970.04719.41
5.4.410.0400.04019.45
5.4.400.0430.04319.45
5.4.390.0130.05019.45
5.4.380.0400.06718.84
5.4.370.0300.05718.69
5.4.360.0430.05018.50
5.4.350.0270.06018.51
5.4.340.0470.06318.47
5.4.320.0060.03612.50
5.4.310.0050.03812.50
5.4.300.0050.03712.50
5.4.290.0050.03812.50
5.4.280.0060.03512.40
5.4.270.0090.03312.40
5.4.260.0080.03512.39
5.4.250.0080.03512.39
5.4.240.0080.03412.40
5.4.230.0050.03812.39
5.4.220.0060.03512.39
5.4.210.0050.03612.39
5.4.200.0040.03912.39
5.4.190.0040.03812.39
5.4.180.0060.03512.39
5.4.170.0060.03512.39
5.4.160.0060.03512.39
5.4.150.0080.03312.39
5.4.140.0060.03612.07
5.4.130.0040.03612.06
5.4.120.0070.03312.02
5.4.110.0090.03112.01
5.4.100.0060.03512.01
5.4.90.0070.04112.01
5.4.80.0040.04012.02
5.4.70.0030.03612.01
5.4.60.0090.03312.01
5.4.50.0070.03612.00
5.4.40.0080.03412.00
5.4.30.0050.04011.99
5.4.20.0060.04212.00
5.4.10.0060.03412.00
5.4.00.0090.04111.48
5.3.290.0060.03912.80
5.3.280.0080.03812.71
5.3.270.0070.04012.73
5.3.260.0050.04212.72
5.3.250.0110.04212.72
5.3.240.0070.03812.72
5.3.230.0070.03712.71
5.3.220.0100.03312.68
5.3.210.0060.03912.68
5.3.200.0120.03012.68
5.3.190.0050.04112.68
5.3.180.0080.04112.67
5.3.170.0050.04312.67
5.3.160.0070.03512.67
5.3.150.0060.04312.68
5.3.140.0050.03712.66
5.3.130.0110.03912.66
5.3.120.0090.04412.66
5.3.110.0110.03912.66
5.3.100.0080.03712.12
5.3.90.0130.03512.10
5.3.80.0090.03512.09
5.3.70.0090.03212.09
5.3.60.0050.03612.08
5.3.50.0090.04312.02
5.3.40.0070.03412.02
5.3.30.0070.03611.98
5.3.20.0040.03611.76
5.3.10.0060.03611.73
5.3.00.0100.03511.71
5.2.170.0060.0359.21
5.2.160.0080.0359.22
5.2.150.0090.0299.22
5.2.140.0040.0349.21
5.2.130.0040.0289.18
5.2.120.0080.0249.18
5.2.110.0110.0299.18
5.2.100.0040.0289.18
5.2.90.0050.0289.18
5.2.80.0060.0299.18
5.2.70.0060.0329.18
5.2.60.0050.0299.13
5.2.50.0080.0289.09
5.2.40.0060.0279.07
5.2.30.0050.0299.05
5.2.20.0030.0309.04
5.2.10.0060.0278.95
5.2.00.0020.0318.81
5.1.60.0060.0248.10
5.1.50.0040.0258.09
5.1.40.0020.0268.07
5.1.30.0050.0258.42
5.1.20.0060.0248.44
5.1.10.0040.0258.17
5.1.00.0050.0248.17
5.0.50.0020.0226.64
5.0.40.0020.0216.50
5.0.30.0030.0316.32
5.0.20.0030.0206.28
5.0.10.0040.0216.26
5.0.00.0050.0306.25
4.4.90.0010.0184.78
4.4.80.0020.0164.76
4.4.70.0050.0134.75
4.4.60.0010.0174.75
4.4.50.0030.0144.77
4.4.40.0040.0234.71
4.4.30.0020.0154.76
4.4.20.0010.0174.84
4.4.10.0030.0154.85
4.4.00.0010.0264.76
4.3.110.0030.0154.67
4.3.100.0020.0154.67
4.3.90.0000.0174.64
4.3.80.0030.0244.59
4.3.70.0020.0154.63
4.3.60.0010.0164.63
4.3.50.0020.0164.62
4.3.40.0020.0264.54
4.3.30.0010.0173.30
4.3.20.0030.0143.29
4.3.10.0040.0143.25
4.3.00.0130.01019.45

preferences:
56.69 ms | 401 KiB | 5 Q