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)
5.4.320.0080.03712.52
5.4.310.0050.04312.52
5.4.300.0050.03812.52
5.4.290.0080.04012.51
5.4.280.0090.03612.41
5.4.270.0070.03912.41
5.4.260.0090.04012.41
5.4.250.0120.03612.41
5.4.240.0050.03812.41
5.4.230.0070.03812.40
5.4.220.0070.03812.40
5.4.210.0080.03712.40
5.4.200.0110.04212.40
5.4.190.0040.04012.40
5.4.180.0070.04112.40
5.4.170.0080.03412.40
5.4.160.0040.03912.40
5.4.150.0070.03912.39
5.4.140.0080.04112.09
5.4.130.0060.03812.07
5.4.120.0050.04212.04
5.4.110.0070.03412.03
5.4.100.0060.03612.03
5.4.90.0060.03812.03
5.4.80.0070.04012.03
5.4.70.0090.03812.02
5.4.60.0070.03812.02
5.4.50.0060.04112.03
5.4.40.0070.03612.02
5.4.30.0050.03812.01
5.4.20.0070.03712.01
5.4.10.0050.03812.01
5.4.00.0050.03811.50
5.3.290.0080.03812.80
5.3.280.0080.03612.71
5.3.270.0070.03812.72
5.3.260.0090.04512.72
5.3.250.0080.04512.72
5.3.240.0100.03912.72
5.3.230.0070.04212.71
5.3.220.0050.04012.68
5.3.210.0110.03812.68
5.3.200.0050.03912.68
5.3.190.0070.04612.67
5.3.180.0070.04112.67
5.3.170.0080.03512.67
5.3.160.0070.03812.67
5.3.150.0070.03712.67
5.3.140.0080.03712.66
5.3.130.0070.04212.65
5.3.120.0050.04412.65
5.3.110.0040.04112.65
5.3.100.0090.03912.13
5.3.90.0070.04912.11
5.3.80.0050.03712.09
5.3.70.0080.04512.09
5.3.60.0080.03812.09
5.3.50.0070.03712.03
5.3.40.0070.03812.03
5.3.30.0050.03711.99
5.3.20.0060.04111.77
5.3.10.0090.03411.73
5.3.00.0070.03811.72
5.2.170.0080.0389.22
5.2.160.0070.0329.22
5.2.150.0080.0339.22
5.2.140.0070.0329.21
5.2.130.0040.0349.18
5.2.120.0070.0269.18
5.2.110.0070.0269.19
5.2.100.0050.0319.18
5.2.90.0080.0299.18
5.2.80.0050.0309.17
5.2.70.0020.0389.17
5.2.60.0070.0329.13
5.2.50.0050.0369.09
5.2.40.0040.0329.07
5.2.30.0050.0399.05
5.2.20.0050.0309.04
5.2.10.0060.0298.95
5.2.00.0070.0278.81
5.1.60.0020.0258.09
5.1.50.0040.0278.09
5.1.40.0050.0238.07
5.1.30.0020.0278.43
5.1.20.0040.0258.45
5.1.10.0030.0268.17
5.1.00.0030.0328.16
5.0.50.0020.0216.64
5.0.40.0040.0236.51
5.0.30.0030.0306.32
5.0.20.0040.0206.28
5.0.10.0020.0216.26
5.0.00.0040.0346.26
4.4.90.0040.0184.78
4.4.80.0040.0144.76
4.4.70.0030.0154.76
4.4.60.0030.0164.75
4.4.50.0040.0164.77
4.4.40.0020.0304.71
4.4.30.0020.0164.76
4.4.20.0040.0164.84
4.4.10.0020.0164.85
4.4.00.0040.0304.76
4.3.110.0030.0194.67
4.3.100.0020.0204.67
4.3.90.0030.0174.63
4.3.80.0020.0244.58
4.3.70.0020.0144.63
4.3.60.0020.0174.63
4.3.50.0040.0144.63
4.3.40.0020.0294.54
4.3.30.0030.0183.30
4.3.20.0020.0193.28
4.3.10.0020.0183.24
4.3.00.0170.01714.28

preferences:
140.15 ms | 1394 KiB | 7 Q