3v4l.org

run code in 300+ PHP versions simultaneously
<?php function numberToRoman($decimalNumber) { static $romanSymbolsMap = array('M' => 1000, 'CM' => 900, 'D' => 500, 'CD' => 400, 'C' => 100, 'XC' => 90, 'L' => 50, 'XL' => 40, 'X' => 10, 'IX' => 9, 'V' => 5, 'IV' => 4, 'I' => 1); $result = ''; foreach ($romanSymbolsMap as $roman => $decimal) { if ($decimalNumber >= $decimal) { $result .= str_repeat($roman, $decimalNumber / $decimal); $decimalNumber %= $decimal; } } return $result; } for ($i = 1; $i < 5000; $i++) { numberToRoman($i); }

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)
8.3.70.0170.00716.75
8.3.60.0140.02416.49
8.3.50.0110.01221.90
8.3.40.0300.00418.80
8.3.30.0250.00719.04
8.3.20.0060.00320.30
8.3.10.0070.00720.38
8.3.00.0170.00019.50
8.2.180.0240.00816.38
8.2.170.0250.00422.96
8.2.160.0180.00922.23
8.2.150.0050.01024.18
8.2.140.0150.00424.66
8.2.130.0130.00026.16
8.2.120.0120.00021.04
8.2.110.0140.00520.53
8.2.100.0080.00818.16
8.2.90.0100.00319.17
8.2.80.0040.00817.97
8.2.70.0080.00417.75
8.2.60.0070.00418.05
8.2.50.0040.00818.07
8.2.40.0080.00418.13
8.2.30.0060.00619.53
8.2.20.0000.00917.73
8.2.10.0060.00618.11
8.2.00.0040.00817.72
8.1.280.0130.00925.92
8.1.270.0070.01324.02
8.1.260.0130.00026.35
8.1.250.0050.01028.09
8.1.240.0170.00422.19
8.1.230.0110.00419.23
8.1.220.0050.00517.74
8.1.210.0040.00818.77
8.1.200.0040.00717.35
8.1.190.0080.00417.23
8.1.180.0060.00318.76
8.1.170.0020.00918.65
8.1.160.0050.00521.96
8.1.150.0040.00818.96
8.1.140.0030.00617.44
8.1.130.0050.00517.93
8.1.120.0080.00317.44
8.1.110.0050.00517.59
8.1.100.0040.00417.50
8.1.90.0050.00517.44
8.1.80.0080.00417.53
8.1.70.0090.00317.50
8.1.60.0000.00917.65
8.1.50.0040.00817.49
8.1.40.0000.01117.50
8.1.30.0070.00717.63
8.1.20.0080.00317.63
8.1.10.0050.00517.54
8.1.00.0040.00417.38
8.0.300.0040.00718.77
8.0.290.0040.00716.63
8.0.280.0000.00918.46
8.0.270.0000.00917.26
8.0.260.0000.00917.19
8.0.250.0050.00516.92
8.0.240.0000.00917.00
8.0.230.0060.00316.98
8.0.220.0030.00616.77
8.0.210.0030.00616.95
8.0.200.0050.00516.86
8.0.190.0000.01016.96
8.0.180.0060.00616.91
8.0.170.0060.00616.88
8.0.160.0040.00716.93
8.0.150.0000.01116.74
8.0.140.0060.00516.79
8.0.130.0000.00913.32
8.0.120.0040.00716.82
8.0.110.0040.00716.83
8.0.100.0070.00316.93
8.0.90.0000.01016.77
8.0.80.0100.01016.92
8.0.70.0080.00316.85
8.0.60.0000.01116.73
8.0.50.0040.00716.84
8.0.30.0090.01417.10
8.0.20.0090.01617.40
8.0.10.0050.00516.89
8.0.00.0100.01516.78
7.4.330.0040.00415.04
7.4.320.0000.01016.42
7.4.300.0030.00616.59
7.4.290.0030.00616.46
7.4.280.0040.00716.52
7.4.270.0000.01016.56
7.4.260.0070.00316.36
7.4.250.0040.00716.38
7.4.240.0020.00816.52
7.4.230.0050.00516.51
7.4.220.0100.02316.48
7.4.210.0060.02216.59
7.4.200.0000.01016.51
7.4.160.0130.00716.42
7.4.150.0120.00917.40
7.4.140.0080.01417.86
7.4.130.0050.02016.50
7.4.120.0080.01416.53
7.4.110.0070.01416.54
7.4.100.0120.00916.50
7.4.90.0120.00916.41
7.4.80.0090.02019.39
7.4.70.0090.01216.57
7.4.60.0110.01116.50
7.4.50.0030.01016.45
7.4.40.0150.00616.42
7.4.30.0060.01316.57
7.4.00.0150.00415.01
7.3.330.0000.00913.39
7.3.320.0040.00413.20
7.3.310.0030.00716.37
7.3.300.0060.00316.23
7.3.290.0070.01416.33
7.3.280.0090.01116.37
7.3.270.0070.01717.40
7.3.260.0070.01516.64
7.3.250.0120.01316.59
7.3.240.0140.00816.36
7.3.230.0040.01816.40
7.3.210.0060.01616.56
7.3.200.0090.02219.39
7.3.190.0100.02016.43
7.3.180.0130.00716.41
7.3.170.0090.01216.56
7.3.160.0070.01316.38
7.3.120.0030.01615.00
7.3.110.0100.01014.94
7.3.100.0090.00915.04
7.3.90.0030.01514.53
7.3.80.0000.02114.76
7.3.70.0040.01914.90
7.3.60.0040.01114.94
7.3.50.0070.01014.79
7.3.40.0090.00914.84
7.3.30.0060.01114.47
7.3.20.0080.00816.75
7.3.10.0100.01316.68
7.3.00.0120.01116.75
7.2.330.0130.01016.71
7.2.320.0120.02016.75
7.2.310.0030.01916.47
7.2.300.0030.01916.69
7.2.290.0000.02316.77
7.2.240.0030.01615.25
7.2.230.0000.01914.68
7.2.220.0000.01814.90
7.2.210.0030.01714.93
7.2.200.0100.01315.02
7.2.190.0070.01414.74
7.2.180.0040.01915.13
7.2.170.0070.01614.80
7.2.160.0030.01615.12
7.2.150.0100.01016.72
7.2.140.0100.00716.80
7.2.130.0070.01616.83
7.2.120.0090.01216.74
7.2.110.0060.01616.68
7.2.100.0080.01016.85
7.2.90.0070.01716.71
7.2.80.0050.01616.81
7.2.70.0080.01416.71
7.2.60.0120.01216.91
7.2.50.0080.01016.76
7.2.40.0080.01416.94
7.2.30.0050.01617.04
7.2.20.0080.01416.80
7.2.10.0040.01716.90
7.2.00.0060.01317.66
7.1.330.0060.01515.68
7.1.320.0100.01415.71
7.1.310.0030.02015.96
7.1.300.0000.02415.90
7.1.290.0060.01615.74
7.1.280.0070.02015.81
7.1.270.0030.02315.63
7.1.260.0100.01715.91
7.1.250.0100.01815.66
7.1.100.0070.01018.07

preferences:
50.46 ms | 401 KiB | 5 Q