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)
5.4.320.0090.03912.52
5.4.310.0060.04312.52
5.4.300.0080.03612.52
5.4.290.0060.03812.51
5.4.280.0090.03412.41
5.4.270.0060.03712.41
5.4.260.0060.03812.41
5.4.250.0080.03812.41
5.4.240.0090.04112.41
5.4.230.0090.03712.40
5.4.220.0050.03612.40
5.4.210.0040.03712.40
5.4.200.0050.03812.40
5.4.190.0050.03912.40
5.4.180.0080.03312.40
5.4.170.0080.03512.40
5.4.160.0060.03812.40
5.4.150.0070.03412.40
5.4.140.0050.03812.09
5.4.130.0050.03712.07
5.4.120.0100.03112.04
5.4.110.0040.03712.03
5.4.100.0050.03512.03
5.4.90.0060.03612.03
5.4.80.0050.03712.03
5.4.70.0050.03612.03
5.4.60.0080.03312.02
5.4.50.0070.03412.03
5.4.40.0060.04212.01
5.4.30.0050.04212.01
5.4.20.0070.04112.00
5.4.10.0070.03912.01
5.4.00.0070.03511.51
5.3.290.0080.03812.80
5.3.280.0060.03812.71
5.3.270.0080.03912.73
5.3.260.0080.04512.72
5.3.250.0060.03612.72
5.3.240.0090.03412.72
5.3.230.0090.03512.71
5.3.220.0060.03612.68
5.3.210.0060.03912.68
5.3.200.0100.03212.68
5.3.190.0050.04012.68
5.3.180.0080.03612.68
5.3.170.0090.04312.67
5.3.160.0070.03612.67
5.3.150.0100.03712.67
5.3.140.0090.04012.66
5.3.130.0080.03712.65
5.3.120.0090.04212.66
5.3.110.0100.03712.66
5.3.100.0060.03712.13
5.3.90.0070.03512.11
5.3.80.0050.03712.09
5.3.70.0050.03712.09
5.3.60.0080.03412.08
5.3.50.0030.03912.03
5.3.40.0050.03712.02
5.3.30.0070.03411.99
5.3.20.0050.03811.77
5.3.10.0070.03311.73
5.3.00.0060.03611.71
5.2.170.0040.0309.22
5.2.160.0040.0309.22
5.2.150.0070.0289.22
5.2.140.0070.0289.21
5.2.130.0030.0309.18
5.2.120.0030.0299.18
5.2.110.0070.0279.18
5.2.100.0080.0259.18
5.2.90.0090.0239.18
5.2.80.0030.0329.18
5.2.70.0020.0389.17
5.2.60.0030.0359.13
5.2.50.0030.0339.09
5.2.40.0060.0269.07
5.2.30.0040.0309.05
5.2.20.0060.0279.04
5.2.10.0060.0288.95
5.2.00.0040.0348.80
5.1.60.0050.0238.09
5.1.50.0050.0238.09
5.1.40.0040.0248.07
5.1.30.0030.0268.43
5.1.20.0050.0258.45
5.1.10.0060.0238.16
5.1.00.0030.0268.16
5.0.50.0010.0226.64
5.0.40.0060.0166.51
5.0.30.0010.0336.32
5.0.20.0030.0196.29
5.0.10.0060.0196.27
5.0.00.0040.0306.25
4.4.90.0040.0144.78
4.4.80.0040.0144.75
4.4.70.0070.0114.75
4.4.60.0030.0154.76
4.4.50.0060.0124.77
4.4.40.0060.0224.71
4.4.30.0050.0134.76
4.4.20.0030.0154.84
4.4.10.0010.0184.85
4.4.00.0020.0264.75
4.3.110.0040.0144.66
4.3.100.0030.0144.66
4.3.90.0040.0134.64
4.3.80.0030.0244.58
4.3.70.0020.0154.63
4.3.60.0030.0144.63
4.3.50.0040.0144.63
4.3.40.0050.0214.54
4.3.30.0000.0183.30
4.3.20.0000.0183.28
4.3.10.0030.0143.24
4.3.00.0000.0237.89

preferences:
143.03 ms | 1394 KiB | 7 Q