3v4l.org

run code in 300+ PHP versions simultaneously
<?php function rome($N) { // support for numbers greater than a thousand $ss = ''; while ($N > 1000) { $ss .= 'M'; $N -= 1000; } $c = 'IVXLCDM'; for ($a = 5, $b = 0, $s = ''; $N; $b++, $a ^= 7) for ($o = $N % $a, $N = (int) ($N / ($a ^ 0)); $o--; ) { $s = $c[$o > 2 ? $b + $N - ($N &= -2) + $o = 1 : $b] . $s; } return $ss.$s; } echo rome(3333); echo "\n---\n"; echo rome(5000);

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)
8.5.10.0070.01021.90
8.5.00.0090.01221.90
8.4.150.0020.00014.05
8.4.140.0140.00717.76
8.4.130.0120.00917.52
8.4.120.0130.00420.76
8.4.110.0130.00622.56
8.4.100.0050.00617.93
8.4.90.0080.00120.57
8.4.80.0100.01117.93
8.4.70.0080.01017.82
8.4.60.0080.01224.34
8.4.50.0120.00819.48
8.4.40.0100.01019.31
8.4.30.0090.00918.86
8.4.20.0040.00417.52
8.4.10.0060.00322.33
8.3.280.0150.00818.40
8.3.270.0110.00916.84
8.3.260.0080.00716.43
8.3.250.0070.00218.95
8.3.240.0130.00716.34
8.3.230.0140.00516.66
8.3.220.0080.01019.03
8.3.210.0110.00918.53
8.3.200.0030.00616.50
8.3.190.0040.00419.26
8.3.180.0110.00416.33
8.3.170.0150.00317.29
8.3.160.0140.00418.61
8.3.150.0100.01017.38
8.3.140.0000.00919.28
8.3.130.0120.00418.47
8.3.120.0080.00020.81
8.3.110.0050.00320.94
8.3.100.0030.01624.06
8.3.90.0040.00426.77
8.3.80.0060.00318.43
8.3.70.0170.00416.63
8.3.60.0110.01118.55
8.3.50.0120.00320.12
8.3.40.0070.00720.32
8.3.30.0070.00718.59
8.3.20.0040.00424.18
8.3.10.0090.00024.66
8.3.00.0080.00026.16
8.2.290.0110.01020.23
8.2.280.0110.00418.66
8.2.270.0150.00316.50
8.2.260.0150.00019.20
8.2.250.0000.00816.88
8.2.240.0050.00517.14
8.2.230.0080.00022.58
8.2.220.0070.01037.54
8.2.210.0040.01126.77
8.2.200.0060.00316.75
8.2.190.0090.00616.58
8.2.180.0140.00725.92
8.2.170.0070.01118.89
8.2.160.0070.00722.96
8.2.150.0000.00825.66
8.2.140.0080.00024.66
8.2.130.0050.00226.16
8.2.120.0040.00426.16
8.2.110.0050.00520.98
8.2.100.0030.01017.91
8.2.90.0030.00518.03
8.2.80.0060.00317.97
8.2.70.0060.00317.63
8.2.60.0090.00017.90
8.2.50.0090.00018.07
8.2.40.0040.00418.16
8.2.30.0040.00418.12
8.2.20.0000.00719.30
8.2.10.0000.00718.00
8.2.00.0030.00619.19
8.1.330.0110.00822.06
8.1.320.0140.00716.30
8.1.310.0070.00716.70
8.1.300.0030.00618.24
8.1.290.0090.00030.84
8.1.280.0070.01425.92
8.1.270.0040.00424.66
8.1.260.0000.00826.35
8.1.250.0090.00628.09
8.1.240.0140.00322.63
8.1.230.0110.00021.03
8.1.220.0040.00417.89
8.1.210.0030.00718.79
8.1.200.0030.00617.35
8.1.190.0040.00417.22
8.1.180.0060.00318.10
8.1.170.0040.00418.71
8.1.160.0080.00018.83
8.1.150.0020.00518.69
8.1.140.0030.00717.47
8.1.130.0030.00318.94
8.1.120.0070.00017.38
8.1.110.0070.00017.38
8.1.100.0120.00017.41
8.1.90.0050.00517.39
8.1.80.0080.00617.44
8.1.70.0110.00617.36
8.1.60.0140.00317.55
8.1.50.0070.00717.50
8.1.40.0160.00017.48
8.1.30.0060.00817.63
8.1.20.0100.00517.49
8.1.10.0100.00417.44
8.1.00.0120.00317.45
8.0.300.0000.00719.98
8.0.290.0060.00316.75
8.0.280.0030.00318.35
8.0.270.0030.00318.02
8.0.260.0050.00318.44
8.0.250.0030.00316.93
8.0.240.0050.00316.95
8.0.230.0110.00016.93
8.0.220.0080.00316.77
8.0.210.0080.00416.84
8.0.200.0080.00416.89
8.0.190.0100.00316.89
8.0.180.0130.00316.75
8.0.170.0070.00716.91
8.0.160.0130.00016.87
8.0.150.0090.00516.70
8.0.140.0070.00716.71
8.0.130.0060.00916.69
8.0.120.0050.01016.89
8.0.110.0000.01416.89
8.0.100.0140.00016.66
8.0.90.0050.01016.89
8.0.80.0090.00616.77
8.0.70.0100.00516.64
8.0.60.0040.01216.89
8.0.50.0110.00516.91
8.0.30.0110.00416.89
8.0.20.0120.00216.93
8.0.10.0120.00217.06
7.4.330.0010.00616.48
7.4.320.0000.00616.50
7.4.300.0140.00216.49
7.4.290.0060.01216.41
7.4.280.0120.00416.61
7.4.270.0140.00416.36
7.4.260.0130.00516.51
7.4.250.0090.00916.56
7.4.240.0110.00616.51
7.4.230.0110.00516.46
7.4.220.0090.00516.48
7.4.210.0170.00016.51
7.4.200.0110.00416.50
7.4.190.0120.00316.55
7.4.180.0090.00316.53
7.4.160.0070.00316.47
7.4.150.0090.00016.19
7.4.140.0060.00616.41
7.4.130.0070.00316.35
7.4.120.0060.00616.44
7.4.110.0100.00316.38
7.4.100.0040.00816.36
7.4.90.0110.00016.29
7.4.80.0100.00216.48
7.4.70.0080.00316.41
7.4.60.0090.00316.38
7.4.50.0060.00616.44
7.4.40.0100.00516.43
7.4.30.0070.00716.33
7.4.20.0050.01016.53
7.4.10.0080.00816.32
7.4.00.0110.00416.52

preferences:
39.06 ms | 403 KiB | 5 Q