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)
5.4.320.0080.03512.52
5.4.310.0070.03712.52
5.4.300.0050.03812.52
5.4.290.0080.04712.52
5.4.280.0050.03712.41
5.4.270.0060.03712.41
5.4.260.0060.03712.41
5.4.250.0020.04212.41
5.4.240.0110.03112.41
5.4.230.0080.03512.41
5.4.220.0070.03412.41
5.4.210.0080.03312.41
5.4.200.0060.03712.40
5.4.190.0050.03712.40
5.4.180.0050.03812.40
5.4.170.0060.03612.41
5.4.160.0080.03612.40
5.4.150.0020.05412.40
5.4.140.0110.04412.09
5.4.130.0040.03912.07
5.4.120.0080.03412.03
5.4.110.0040.03812.03
5.4.100.0100.04012.03
5.4.90.0090.04312.03
5.4.80.0030.04012.03
5.4.70.0080.03212.02
5.4.60.0060.03412.03
5.4.50.0070.03512.02
5.4.40.0090.03412.02
5.4.30.0060.03812.01
5.4.20.0060.03712.01
5.4.10.0080.04912.02
5.4.00.0100.03811.51
5.3.290.0100.05212.80
5.3.280.0140.04512.71
5.3.270.0130.05212.72
5.3.260.0140.04912.72
5.3.250.0110.04612.72
5.3.240.0120.05412.72
5.3.230.0060.04412.71
5.3.220.0250.07612.68
5.3.210.0210.11312.68
5.3.200.0120.04912.68
5.3.190.0120.05212.67
5.3.180.0120.05412.67
5.3.170.0070.04012.66
5.3.160.0050.04012.67
5.3.150.0080.03612.67
5.3.140.0070.03712.66
5.3.130.0090.04312.66
5.3.120.0060.05412.66
5.3.110.0060.04812.66
5.3.100.0070.04212.12
5.3.90.0050.04012.11
5.3.80.0070.04112.09
5.3.70.0100.03612.09
5.3.60.0090.03712.08
5.3.50.0050.03812.02
5.3.40.0070.03712.02
5.3.30.0110.03611.98
5.3.20.0070.03611.77
5.3.10.0070.03711.73
5.3.00.0050.04011.72
5.2.170.0060.0429.21
5.2.160.0070.0309.22
5.2.150.0100.0349.22
5.2.140.0040.0329.21
5.2.130.0120.0339.18
5.2.120.0080.0379.18
5.2.110.0050.0309.18
5.2.100.0070.0269.18
5.2.90.0060.0339.18
5.2.80.0060.0339.18
5.2.70.0080.0269.18
5.2.60.0040.0309.13
5.2.50.0040.0309.10
5.2.40.0050.0319.08
5.2.30.0040.0329.05
5.2.20.0080.0269.04
5.2.10.0070.0258.95
5.2.00.0090.0248.82
5.1.60.0020.0268.09
5.1.50.0040.0258.08
5.1.40.0040.0248.07
5.1.30.0070.0228.42
5.1.20.0070.0248.44
5.1.10.0040.0258.16
5.1.00.0030.0348.16
5.0.50.0050.0196.65
5.0.40.0040.0186.51
5.0.30.0050.0306.32
5.0.20.0050.0216.29
5.0.10.0050.0256.27
5.0.00.0020.0326.26
4.4.90.0010.0174.78
4.4.80.0030.0154.75
4.4.70.0020.0174.75
4.4.60.0030.0154.75
4.4.50.0050.0134.77
4.4.40.0030.0254.71
4.4.30.0030.0164.76
4.4.20.0020.0164.85
4.4.10.0020.0164.85
4.4.00.0040.0234.76
4.3.110.0030.0154.67
4.3.100.0020.0174.66
4.3.90.0030.0164.63
4.3.80.0030.0234.59
4.3.70.0020.0244.63
4.3.60.0010.0154.62
4.3.50.0040.0164.63
4.3.40.0040.0254.54
4.3.30.0020.0213.31
4.3.20.0010.0203.29
4.3.10.0030.0243.25
4.3.00.0230.01714.28

preferences:
141.68 ms | 1394 KiB | 7 Q