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 $result; } for ($j=0;$j<10;j++{ for ($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)
5.4.320.0090.04212.52
5.4.310.0070.04212.52
5.4.300.0060.03812.52
5.4.290.0100.03812.51
5.4.280.0100.03412.41
5.4.270.0090.04112.41
5.4.260.0080.04812.41
5.4.250.0070.04312.41
5.4.240.0060.04012.41
5.4.230.0110.04112.40
5.4.220.0110.03612.41
5.4.210.0080.03712.41
5.4.200.0080.04012.41
5.4.190.0050.04112.40
5.4.180.0020.04112.40
5.4.170.0080.04312.41
5.4.160.0060.04112.40
5.4.150.0080.03812.39
5.4.140.0070.04112.09
5.4.130.0090.04012.07
5.4.120.0050.03512.04
5.4.110.0050.04412.03
5.4.100.0120.03412.03
5.4.90.0050.03912.03
5.4.80.0160.04912.04
5.4.70.0090.03912.03
5.4.60.0070.04412.03
5.4.50.0060.04212.02
5.4.40.0050.03712.02
5.4.30.0080.03612.01
5.4.20.0060.04212.00
5.4.10.0140.03212.01
5.4.00.0030.03811.50
5.3.290.0070.04412.80
5.3.280.0070.03612.71
5.3.270.0100.04312.72
5.3.260.0070.04212.71
5.3.250.0070.04412.72
5.3.240.0080.03912.72
5.3.230.0110.03512.71
5.3.220.0090.03712.68
5.3.210.0080.04212.68
5.3.200.0110.04212.68
5.3.190.0080.03912.68
5.3.180.0080.03712.68
5.3.170.0080.03412.67
5.3.160.0070.03712.68
5.3.150.0090.03512.67
5.3.140.0040.04112.66
5.3.130.0100.03512.65
5.3.120.0070.03812.66
5.3.110.0080.04512.66
5.3.100.0060.03712.13
5.3.90.0050.04512.10
5.3.80.0070.03712.09
5.3.70.0080.04012.09
5.3.60.0080.03612.08
5.3.50.0040.04412.02
5.3.40.0080.03612.02
5.3.30.0070.04611.99
5.3.20.0080.03811.77
5.3.10.0090.03411.73
5.3.00.0050.04211.72
5.2.170.0060.0309.22
5.2.160.0040.0309.22
5.2.150.0040.0399.22
5.2.140.0090.0329.22
5.2.130.0060.0289.18
5.2.120.0090.0319.18
5.2.110.0090.0309.18
5.2.100.0050.0289.18
5.2.90.0070.0289.18
5.2.80.0060.0389.18
5.2.70.0070.0329.18
5.2.60.0050.0329.13
5.2.50.0080.0359.10
5.2.40.0050.0289.07
5.2.30.0060.0369.05
5.2.20.0060.0369.04
5.2.10.0080.0298.94
5.2.00.0060.0348.81
5.1.60.0060.0328.09
5.1.50.0040.0318.09
5.1.40.0060.0278.07
5.1.30.0040.0278.42
5.1.20.0050.0308.44
5.1.10.0090.0268.16
5.1.00.0050.0298.17
5.0.50.0050.0206.64
5.0.40.0070.0246.51
5.0.30.0020.0336.32
5.0.20.0030.0226.29
5.0.10.0040.0196.27
5.0.00.0050.0296.26
4.4.90.0040.0164.78
4.4.80.0050.0264.75
4.4.70.0010.0174.75
4.4.60.0020.0234.75
4.4.50.0020.0164.77
4.4.40.0050.0264.71
4.4.30.0050.0134.76
4.4.20.0020.0174.85
4.4.10.0040.0194.85
4.4.00.0030.0264.76
4.3.110.0030.0194.67
4.3.100.0010.0164.66
4.3.90.0040.0134.63
4.3.80.0030.0244.58
4.3.70.0030.0144.63
4.3.60.0020.0154.62
4.3.50.0040.0214.63
4.3.40.0030.0234.54
4.3.30.0030.0153.30
4.3.20.0030.0153.29
4.3.10.0040.0143.25
4.3.00.0070.02314.28

preferences:
148.45 ms | 1398 KiB | 7 Q