3v4l.org

run code in 300+ PHP versions simultaneously
<?php function romToDec ($dec) { $return = ''; while ($dec >= 1000) { $dec -= 1000; $return .= 'M'; } if ($dec >= 900) { $dec -= 900; $return .= 'CM'; } if ($dec >= 500) { $dec -= 500; $return .= 'D'; } if ($dec >= 400) { $dec -= 400; $return .= 'CD'; } while ($dec >= 100) { $dec -= 100; $return .= 'C'; } if ($dec >= 90) { $dec -= 90; $return .= 'XC'; } if ($dec >= 50) { $dec -= 50; $return .= 'L'; } if ($dec >= 40) { $dec -= 40; $return .= 'XL'; } while ($dec >= 10) { $dec -= 10; $return .= 'X'; } if ($dec == 9) { $dec = 0; $return .= 'IX'; } if ($dec >= 5) { $dec -= 5; $return .= 'V'; } if ($dec == 4) { $dec = 0; $return .= 'IV'; } while ($dec >= 1) { $dec -= 1; $return .= 'I'; } return $return; } $tests = array(1, 999, 2016, 23458, 104696); foreach ($tests as $test) { echo $test.' → '.romToDec($test)."\n"; } ?>

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)
8.3.60.0070.00718.31
8.3.50.0120.00621.87
8.3.40.0090.00618.44
8.3.30.0070.00718.68
8.3.20.0070.00020.34
8.3.10.0040.00420.53
8.3.00.0040.00420.56
8.2.180.0200.00016.50
8.2.170.0120.00322.96
8.2.160.0080.00620.52
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00419.36
8.2.120.0040.00426.35
8.2.110.0030.00620.51
8.2.100.0070.00417.97
8.2.90.0000.00817.75
8.2.80.0000.00818.82
8.2.70.0040.00417.63
8.2.60.0000.00817.93
8.2.50.0040.00418.07
8.2.40.0060.00618.21
8.2.30.0080.00018.07
8.2.20.0080.00017.83
8.2.10.0040.00418.08
8.2.00.0070.00018.14
8.1.280.0120.00325.92
8.1.270.0030.00523.87
8.1.260.0050.00328.09
8.1.250.0040.00428.09
8.1.240.0060.00322.15
8.1.230.0060.00617.95
8.1.220.0050.00317.74
8.1.210.0050.00318.77
8.1.200.0000.00817.35
8.1.190.0000.01117.23
8.1.180.0040.00418.10
8.1.170.0040.00418.45
8.1.160.0040.00418.90
8.1.150.0000.00818.95
8.1.140.0040.00419.51
8.1.130.0040.00417.34
8.1.120.0000.00717.38
8.1.110.0030.00317.54
8.1.100.0000.00717.52
8.1.90.0040.00417.46
8.1.80.0000.00717.41
8.1.70.0040.00417.38
8.1.60.0030.00617.62
8.1.50.0050.00317.54
8.1.40.0060.00317.46
8.1.30.0030.00617.58
8.1.20.0030.00517.68
8.1.10.0000.00717.57
8.1.00.0020.00517.41
8.0.300.0040.00418.77
8.0.290.0000.00816.75
8.0.280.0080.00018.45
8.0.270.0000.00717.24
8.0.260.0040.00416.78
8.0.250.0000.00817.03
8.0.240.0030.00616.95
8.0.230.0000.00716.98
8.0.220.0040.00416.84
8.0.210.0000.00716.90
8.0.200.0000.00717.00
8.0.190.0000.00816.93
8.0.180.0030.00616.96
8.0.170.0060.00316.95
8.0.160.0000.00816.93
8.0.150.0050.00216.93
8.0.140.0050.00316.88
8.0.130.0060.00013.34
8.0.120.0030.00516.89
8.0.110.0000.00816.82
8.0.100.0030.00516.69
8.0.90.0040.00416.95
8.0.80.0060.01016.84
8.0.70.0040.00416.85
8.0.60.0070.00016.74
8.0.50.0040.00316.83
8.0.30.0090.00716.87
8.0.20.0100.00917.40
8.0.10.0070.00016.91
8.0.00.0110.00816.81
7.4.330.0060.00015.08
7.4.320.0030.00316.43
7.4.300.0000.00716.47
7.4.290.0030.00316.61
7.4.280.0000.00716.46
7.4.270.0050.00216.49
7.4.260.0000.00716.53
7.4.250.0040.00416.50
7.4.240.0040.00416.55
7.4.230.0000.00716.42
7.4.220.0100.00616.57
7.4.210.0090.01216.47
7.4.200.0070.00016.69
7.4.160.0120.00416.35
7.4.150.0130.00617.40
7.4.140.0090.00917.86
7.4.130.0090.00916.62
7.4.120.0090.00816.48
7.4.110.0060.01016.43
7.4.100.0030.01316.49
7.4.90.0080.00816.56
7.4.80.0060.01119.39
7.4.70.0070.01016.56
7.4.60.0030.01316.67
7.4.50.0000.01516.58
7.4.40.0120.00616.63
7.4.30.0030.01216.53
7.4.00.0070.00915.04
7.3.330.0000.00713.33
7.3.320.0000.00613.30
7.3.310.0000.00716.33
7.3.300.0070.00016.18
7.3.290.0050.01116.30
7.3.280.0050.01316.29
7.3.270.0130.00717.40
7.3.260.0050.01116.39
7.3.250.0110.01016.53
7.3.240.0080.00816.70
7.3.230.0130.00316.64
7.3.210.0110.00616.42
7.3.200.0080.00919.39
7.3.190.0130.00316.55
7.3.180.0090.00616.29
7.3.170.0090.01016.62
7.3.160.0110.00416.63
7.3.120.0070.01314.88
7.3.110.0030.01714.74
7.3.100.0070.00614.76
7.3.90.0090.00614.99
7.3.80.0100.00714.73
7.3.70.0040.01214.83
7.3.60.0090.00814.81
7.3.50.0040.01114.93
7.3.40.0020.01114.89
7.3.30.0050.00914.73
7.3.20.0060.01016.72
7.3.10.0080.00816.70
7.3.00.0070.00716.56
7.2.330.0130.00616.56
7.2.320.0080.01116.68
7.2.310.0120.00616.85
7.2.300.0130.01016.70
7.2.290.0090.00916.79
7.2.250.0100.01015.06
7.2.240.0070.01315.10
7.2.230.0100.00614.91
7.2.220.0030.01015.10
7.2.210.0060.00915.16
7.2.200.0020.01214.86
7.2.190.0070.01014.79
7.2.180.0070.00714.95
7.2.170.0020.01215.03
7.2.00.0110.01119.34
7.1.330.0070.00815.68
7.1.320.0060.00715.65
7.1.310.0070.01015.92
7.1.300.0060.00815.76
7.1.290.0040.01315.83
7.1.280.0050.00515.58
7.1.270.0070.00915.89
7.1.260.0060.00715.80
7.1.200.0070.00715.85
7.1.100.0000.01118.35
7.1.70.0030.00317.30
7.1.60.0100.01419.19
7.1.00.0000.08022.27
7.0.200.0080.00016.86
7.0.60.0030.04021.63
7.0.50.0070.08317.87
7.0.40.0070.04020.03
7.0.30.0430.06720.30
7.0.20.0130.05020.33
7.0.10.0070.04320.19
7.0.00.0030.06020.07
5.6.280.0000.04321.15
5.6.210.0100.07720.54
5.6.200.0100.08318.14
5.6.190.0100.08320.61
5.6.180.0270.05720.67
5.6.170.0270.06320.48
5.6.160.0030.09020.42
5.6.150.0070.08718.18
5.6.140.0070.07318.17
5.6.130.0100.06318.19
5.6.120.0070.08021.00
5.6.110.0100.07021.02
5.6.100.0130.08021.10
5.6.90.0070.06721.10
5.6.80.0100.06720.38
5.5.350.0070.07720.45
5.5.340.0070.05318.07
5.5.330.0030.08320.38
5.5.320.0500.06720.33
5.5.310.0330.05720.35
5.5.300.0170.06318.05
5.5.290.0130.06018.07
5.5.280.0030.06720.89
5.5.270.0070.07020.69
5.5.260.0170.07320.89
5.5.250.0070.07320.81
5.5.240.0200.04320.38

preferences:
59.61 ms | 401 KiB | 5 Q