3v4l.org

run code in 300+ PHP versions simultaneously
<?php function convertOld($input) { $oldMin = 0; $oldMax = 1; $newMin = 127; $newMax = 0; return ceil(((($input- $oldMin) * ($newMax - $newMin)) / ($oldMax - $oldMin)) + $newMin); } function convertNew($input) { $range_input = range(1, 0, 1/127); $range_output = range(0, 127); foreach ($range_input as $key => $value) { if ($value <= $input) { return $range_output[$key]; } } return 127; } $start = microtime(1); foreach (range(0,1,1/1000) as $input) { convertOld($input); } echo "Old time: ".(microtime(1) - $start)."\n"; $start = microtime(1); foreach (rang(0,1,1/1000) as $input) { convertNew($input); } echo "New time: ".microtime(1) - $start)."\n"; $warnings = array(); foreach (range(0,1,1/10000) as $input) { if (convertOld($input) != convertNew($input)) $warnings[] = $input; } if (count($warnings)) { echo "Warning, value mismatches at ".implode(", ", $warnings)."\n"; } else { echo "All values passed!\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)
5.4.320.0040.03812.52
5.4.310.0060.03712.52
5.4.300.0060.03612.52
5.4.290.0050.03712.51
5.4.280.0050.04012.41
5.4.270.0050.04612.41
5.4.260.0060.03712.41
5.4.250.0050.04012.41
5.4.240.0040.04012.41
5.4.230.0040.03712.41
5.4.220.0060.04112.41
5.4.210.0050.03612.41
5.4.200.0040.03912.41
5.4.190.0030.03712.40
5.4.180.0070.03412.40
5.4.170.0080.04112.41
5.4.160.0050.03512.40
5.4.150.0020.03912.39
5.4.140.0040.03812.09
5.4.130.0070.03312.07
5.4.120.0050.03512.04
5.4.110.0080.03812.03
5.4.100.0070.03712.03
5.4.90.0060.04112.04
5.4.80.0050.03712.03
5.4.70.0050.03812.03
5.4.60.0060.04712.03
5.4.50.0090.03712.03
5.4.40.0040.03512.02
5.4.30.0060.03912.01
5.4.20.0080.03712.00
5.4.10.0050.03412.01
5.4.00.0020.04011.50
5.3.290.0090.03512.80
5.3.280.0070.03612.71
5.3.270.0050.03912.73
5.3.260.0090.03412.72
5.3.250.0070.03612.72
5.3.240.0050.03712.71
5.3.230.0050.03812.71
5.3.220.0040.03812.68
5.3.210.0060.03812.68
5.3.200.0070.04312.68
5.3.190.0060.04212.68
5.3.180.0120.03412.67
5.3.170.0050.04212.66
5.3.160.0060.03712.67
5.3.150.0060.03612.68
5.3.140.0050.03612.66
5.3.130.0080.03712.66
5.3.120.0050.03812.66
5.3.110.0020.04212.66
5.3.100.0030.03812.13
5.3.90.0050.03612.11
5.3.80.0070.03412.10
5.3.70.0060.03512.10
5.3.60.0070.03512.09
5.3.50.0040.04512.03
5.3.40.0050.03512.03
5.3.30.0080.03112.00
5.3.20.0080.03211.77
5.3.10.0100.02911.74
5.3.00.0030.03711.72
5.2.170.0080.0279.23
5.2.160.0040.0359.23
5.2.150.0070.0319.23
5.2.140.0060.0289.22
5.2.130.0050.0359.19
5.2.120.0070.0289.19
5.2.110.0060.0289.20
5.2.100.0070.0269.19
5.2.90.0040.0309.19
5.2.80.0030.0369.18
5.2.70.0020.0329.18
5.2.60.0070.0279.14
5.2.50.0040.0369.11
5.2.40.0040.0299.09
5.2.30.0040.0299.06
5.2.20.0090.0259.05
5.2.10.0040.0298.95
5.2.00.0030.0338.82
5.1.60.0040.0248.09
5.1.50.0020.0358.09
5.1.40.0040.0258.07
5.1.30.0030.0268.43
5.1.20.0030.0278.45
5.1.10.0060.0248.17
5.1.00.0060.0238.18
5.0.50.0040.0206.66
5.0.40.0020.0206.52
5.0.30.0030.0316.32
5.0.20.0060.0166.29
5.0.10.0040.0196.27
5.0.00.0020.0316.27
4.4.90.0040.0144.78
4.4.80.0010.0164.76
4.4.70.0040.0144.76
4.4.60.0010.0174.76
4.4.50.0020.0164.77
4.4.40.0020.0264.71
4.4.30.0010.0174.76
4.4.20.0040.0144.84
4.4.10.0020.0164.85
4.4.00.0010.0264.76
4.3.110.0020.0164.67
4.3.100.0050.0134.66
4.3.90.0000.0174.63
4.3.80.0030.0234.58
4.3.70.0030.0144.63
4.3.60.0030.0144.62
4.3.50.0030.0154.63
4.3.40.0050.0214.54
4.3.30.0040.0133.31
4.3.20.0030.0153.30
4.3.10.0020.0153.25
4.3.00.0270.01015.85

preferences:
139.71 ms | 1394 KiB | 7 Q