3v4l.org

run code in 300+ PHP versions simultaneously
<?php function rome($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] . $s ); } return $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)
8.5.10.0110.00621.94
8.5.00.0140.00622.03
8.4.150.0020.00014.05
8.4.140.0130.00917.80
8.4.130.0060.00719.01
8.4.120.0130.00620.75
8.4.110.0110.00922.75
8.4.100.0040.00417.90
8.4.90.0070.01320.71
8.4.80.0110.00317.90
8.4.70.0050.00418.07
8.4.60.0050.00318.97
8.4.50.0110.01119.62
8.4.40.0090.00619.87
8.4.30.0030.00618.61
8.4.20.0080.01118.01
8.4.10.0060.00321.94
8.3.280.0130.00718.41
8.3.270.0100.01016.77
8.3.260.0040.00416.74
8.3.250.0090.00819.06
8.3.240.0130.00716.60
8.3.230.0150.00516.96
8.3.220.0040.00417.31
8.3.210.0030.00416.92
8.3.200.0050.00416.72
8.3.190.0040.00419.14
8.3.180.0040.00316.64
8.3.170.0040.00417.16
8.3.160.0090.01018.62
8.3.150.0130.00717.07
8.3.140.0090.00917.02
8.3.130.0040.00418.63
8.3.120.0040.00418.87
8.3.110.0110.00420.94
8.3.100.0060.00924.06
8.3.90.0060.00326.77
8.3.80.0060.00316.63
8.3.70.0030.01217.00
8.3.60.0030.01218.68
8.3.50.0070.00720.24
8.3.40.0070.00720.34
8.3.30.0060.00918.79
8.3.20.0040.00424.18
8.3.10.0090.00024.66
8.3.00.0050.00326.16
8.2.290.0100.00820.45
8.2.280.0060.00518.50
8.2.270.0060.01216.91
8.2.260.0110.00416.69
8.2.250.0080.00416.86
8.2.240.0030.00617.43
8.2.230.0040.01122.58
8.2.220.0060.00337.54
8.2.210.0140.00426.77
8.2.200.0060.00316.74
8.2.190.0050.01018.39
8.2.180.0170.00325.92
8.2.170.0070.00719.12
8.2.160.0140.00722.96
8.2.150.0040.00425.66
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0080.00026.16
8.2.110.0050.00522.11
8.2.100.0060.00617.84
8.2.90.0060.00319.22
8.2.80.0000.00917.97
8.2.70.0100.00517.25
8.2.60.0060.00317.93
8.2.50.0000.00818.07
8.2.40.0000.00718.34
8.2.30.0080.00018.04
8.2.20.0000.00719.39
8.2.10.0050.00218.01
8.2.00.0060.00319.36
8.1.330.0120.00721.72
8.1.320.0110.00916.35
8.1.310.0110.00416.76
8.1.300.0050.00318.47
8.1.290.0040.01130.84
8.1.280.0140.00725.92
8.1.270.0040.00424.66
8.1.260.0050.00326.35
8.1.250.0000.00828.09
8.1.240.0060.00323.77
8.1.230.0060.00619.01
8.1.220.0040.00417.74
8.1.210.0050.00318.77
8.1.200.0000.00817.36
8.1.190.0080.00017.35
8.1.180.0080.00018.10
8.1.170.0000.00818.59
8.1.160.0000.00718.96
8.1.150.0080.00018.55
8.1.140.0040.00417.46
8.1.130.0030.00319.08
8.1.120.0000.00717.34
8.1.110.0040.00417.30
8.1.100.0120.00017.36
8.1.90.0060.00617.34
8.1.80.0060.00617.33
8.1.70.0000.01217.32
8.1.60.0000.01317.61
8.1.50.0050.00917.52
8.1.40.0000.01517.57
8.1.30.0110.00317.58
8.1.20.0040.00717.63
8.1.10.0040.00817.57
8.1.00.0070.00717.48
8.0.300.0040.00418.77
8.0.290.0030.00616.88
8.0.280.0000.00718.45
8.0.270.0000.00717.19
8.0.260.0090.00018.33
8.0.250.0070.00016.93
8.0.240.0050.00516.92
8.0.230.0110.00017.06
8.0.220.0060.00616.95
8.0.210.0060.00616.93
8.0.200.0080.00417.00
8.0.190.0060.00616.91
8.0.180.0040.00816.88
8.0.170.0100.00216.96
8.0.160.0130.00016.98
8.0.150.0110.00316.72
8.0.140.0110.00416.89
8.0.130.0110.00416.77
8.0.120.0050.01016.91
8.0.110.0090.00516.94
8.0.100.0120.00216.88
8.0.90.0110.00416.95
8.0.80.0110.00616.90
8.0.70.0130.00316.96
8.0.60.0130.00316.93
8.0.50.0080.00616.76
8.0.30.0100.00516.81
8.0.20.0070.00716.90
8.0.10.0070.00717.06
7.4.330.0060.00015.55
7.4.320.0030.00316.61
7.4.300.0160.00016.52
7.4.290.0110.00516.61
7.4.280.0100.00716.41
7.4.270.0100.00516.45
7.4.260.0140.00216.63
7.4.250.0120.00416.41
7.4.240.0080.00816.48
7.4.230.0080.00816.50
7.4.220.0120.00416.62
7.4.210.0110.00316.62
7.4.200.0100.00516.45
7.4.190.0030.01216.68
7.4.180.0100.00216.59
7.4.160.0100.00016.54
7.4.150.0060.00316.40
7.4.140.0080.00416.43
7.4.130.0090.00016.41
7.4.120.0070.00516.44
7.4.110.0080.00416.46
7.4.100.0100.00016.26
7.4.90.0070.00416.24
7.4.80.0090.00016.31
7.4.70.0070.00316.34
7.4.60.0060.00616.41
7.4.50.0050.00516.35
7.4.40.0070.00716.38
7.4.30.0130.00016.39
7.4.20.0080.00516.44
7.4.10.0130.00016.42
7.4.00.0130.00016.50

preferences:
133.48 ms | 403 KiB | 5 Q