3v4l.org

run code in 300+ PHP versions simultaneously
<?php function calculateAccuracy($txPower, $rssi){ if ($rssi == 0) { return -1.0; // if we cannot determine accuracy, return -1. } $ratio = $rssi*1.0/$txPower; if ($ratio < 1.0) { return pow($ratio,10); } else { $accuracy = (0.89976)*pow($ratio,7.7095) + 0.111; return $accuracy; } } echo(calculateAccuracy(-10, -70).PHP_EOL); echo(calculateAccuracy(-20, -70).PHP_EOL); echo(calculateAccuracy(-40, -70).PHP_EOL); echo(calculateAccuracy(-60, -70).PHP_EOL); echo(calculateAccuracy(-80, -70).PHP_EOL); echo(calculateAccuracy(-90, -70).PHP_EOL); echo(calculateAccuracy(-100, -70).PHP_EOL);

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)
8.3.60.0070.01418.52
8.3.50.0080.01222.15
8.3.40.0100.00719.14
8.3.30.0110.00319.09
8.3.20.0030.00520.59
8.3.10.0030.00523.98
8.3.00.0050.00319.63
8.2.180.0070.01016.59
8.2.170.0090.00622.96
8.2.160.0040.01120.63
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0040.00422.49
8.2.110.0110.00020.85
8.2.100.0000.01217.97
8.2.90.0000.00819.34
8.2.80.0050.00517.97
8.2.70.0000.00817.75
8.2.60.0040.00418.16
8.2.50.0060.00318.07
8.2.40.0040.00420.26
8.2.30.0000.00818.33
8.2.20.0070.00317.99
8.2.10.0040.00418.37
8.2.00.0000.01017.88
8.1.280.0170.00325.92
8.1.270.0060.00324.08
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0090.00024.00
8.1.230.0060.00621.23
8.1.220.0050.00317.89
8.1.210.0060.00318.77
8.1.200.0090.00017.61
8.1.190.0080.00017.50
8.1.180.0080.00018.10
8.1.170.0050.00518.91
8.1.160.0020.00522.21
8.1.150.0070.00019.09
8.1.140.0000.00817.56
8.1.130.0000.00918.11
8.1.120.0030.00417.64
8.1.110.0040.00417.77
8.1.100.0000.00717.75
8.1.90.0000.00717.70
8.1.80.0000.00717.67
8.1.70.0040.00417.63
8.1.60.0060.00317.66
8.1.50.0000.00817.76
8.1.40.0000.00717.71
8.1.30.0050.00317.84
8.1.20.0050.00217.82
8.1.10.0040.00417.79
8.1.00.0080.00017.63
8.0.300.0070.00018.77
8.0.290.0060.00317.00
8.0.280.0070.00018.60
8.0.270.0070.00017.50
8.0.260.0030.00317.48
8.0.250.0070.00017.06
8.0.240.0030.00317.23
8.0.230.0000.00717.22
8.0.220.0030.00317.07
8.0.210.0000.00716.95
8.0.200.0070.00017.11
8.0.190.0000.00817.15
8.0.180.0000.00717.16
8.0.170.0090.00017.09
8.0.160.0000.00817.24
8.0.150.0000.00717.01
8.0.140.0000.00717.02
8.0.130.0060.00013.53
8.0.120.0040.00416.99
8.0.110.0080.00017.06
8.0.100.0050.00217.11
8.0.90.0070.00017.06
8.0.80.0060.01217.07
8.0.70.0000.00816.96
8.0.60.0000.00817.09
8.0.50.0050.00316.95
8.0.30.0080.01117.27
8.0.20.0060.01317.40
8.0.10.0070.00017.22
8.0.00.0130.01016.89
7.4.330.0000.00515.00
7.4.320.0030.00316.86
7.4.300.0060.00016.87
7.4.290.0050.00216.73
7.4.280.0060.00316.72
7.4.270.0030.00316.83
7.4.260.0000.00716.71
7.4.250.0040.00416.64
7.4.240.0020.00516.72
7.4.230.0000.00816.88
7.4.220.0100.01416.74
7.4.210.0100.00316.71
7.4.200.0040.00416.72
7.4.160.0120.01216.76
7.4.150.0090.00917.40
7.4.140.0170.00417.86
7.4.130.0120.00516.77
7.4.120.0020.01516.65
7.4.110.0070.01616.56
7.4.100.0090.01216.51
7.4.90.0090.00916.43
7.4.80.0140.01019.39
7.4.70.0060.01416.71
7.4.60.0160.00016.46
7.4.50.0000.00416.80
7.4.40.0060.01216.36
7.4.30.0030.01316.66
7.4.00.0040.01415.14
7.3.330.0000.00613.43
7.3.320.0000.00613.46
7.3.310.0070.00016.56
7.3.300.0000.00616.58
7.3.290.0070.00716.63
7.3.280.0060.00916.49
7.3.270.0060.01417.40
7.3.260.0030.01316.81
7.3.250.0060.01116.60
7.3.240.0030.01516.70
7.3.230.0060.01116.73
7.3.210.0070.01016.82
7.3.200.0120.00919.39
7.3.190.0090.00916.50
7.3.180.0000.01616.56
7.3.170.0090.00616.60
7.3.160.0100.00716.43
7.3.10.0000.01816.86
7.3.00.0090.01216.89
7.2.330.0070.01016.96
7.2.320.0130.01016.79
7.2.310.0110.00616.91
7.2.300.0140.00416.66
7.2.290.0060.01116.88
7.2.130.0130.00316.54
7.2.120.0050.00516.60
7.2.110.0000.01216.70
7.2.100.0170.00417.11
7.2.90.0060.01217.22
7.2.80.0060.00617.23
7.2.70.0080.00316.60
7.2.60.0060.01017.00
7.2.50.0030.01217.18
7.2.40.0060.00316.82
7.2.30.0090.00617.07
7.2.20.0060.00616.57
7.2.10.0110.00716.91
7.2.00.0080.00518.27
7.1.250.0080.01116.07
7.1.100.0460.01315.54
7.1.70.0040.00817.31
7.1.60.0060.01519.32
7.1.50.0130.00917.05
7.1.00.0070.07322.47
7.0.200.0050.00316.88
7.0.140.0170.06022.14
7.0.60.0100.04020.11
7.0.50.0030.05018.21
7.0.40.0170.04320.36
7.0.30.0430.04320.28
7.0.20.0130.05020.27
7.0.10.0100.06320.39
7.0.00.0070.07020.39
5.6.280.0000.07721.08
5.6.210.0030.08020.83
5.6.200.0070.06718.29
5.6.190.0030.05020.52
5.6.180.0270.04720.76
5.6.170.0430.05720.73
5.6.160.0130.04020.55
5.6.150.0000.08018.34
5.6.140.0100.07718.47
5.6.130.0100.07318.38
5.6.120.0170.07321.15
5.6.110.0000.07321.21
5.6.100.0070.08021.17
5.6.90.0070.04021.35
5.6.80.0000.04020.63
5.5.350.0170.06020.56
5.5.340.0070.08018.11
5.5.330.0130.07720.50
5.5.320.0370.05020.56
5.5.310.0430.07720.51
5.5.300.0000.06318.20
5.5.290.0030.07018.07
5.5.280.0200.07021.00
5.5.270.0100.05020.94
5.5.260.0100.08320.86
5.5.250.0070.08720.77
5.5.240.0200.05320.37
5.4.450.0930.04319.84
5.4.440.0730.06019.84
5.4.430.0700.06319.74
5.4.420.0770.00019.80
5.4.410.0630.00019.34
5.4.400.0670.00019.35
5.4.390.0630.00019.32
5.4.380.0670.00019.30
5.4.370.0600.00019.40
5.4.360.0800.00019.27
5.4.350.0700.00019.39
5.4.340.0060.03512.08
5.4.320.0040.03712.57
5.4.310.0030.03912.57
5.4.300.0050.03612.57
5.4.290.0070.03512.56
5.4.280.0070.03612.46
5.4.270.0080.03712.47
5.4.260.0030.03912.46
5.4.250.0020.03912.46
5.4.240.0080.03312.46
5.4.230.0060.03712.46
5.4.220.0030.04212.46
5.4.210.0070.03312.46
5.4.200.0060.03612.45
5.4.190.0070.03712.45
5.4.180.0070.03712.46
5.4.170.0030.03712.46
5.4.160.0040.03712.46
5.4.150.0040.03812.45
5.4.140.0020.04012.13
5.4.130.0060.03512.13
5.4.120.0040.03912.09
5.4.110.0100.03212.08
5.4.100.0080.03312.08
5.4.90.0060.03812.08
5.4.80.0070.03612.08
5.4.70.0050.03512.07
5.4.60.0040.03712.07
5.4.50.0090.03912.07
5.4.40.0060.03612.06
5.4.30.0060.03612.06
5.4.20.0060.03712.06
5.4.10.0070.03912.06
5.4.00.0080.04511.55
5.3.290.0080.05312.82
5.3.280.0050.03812.74
5.3.270.0040.04112.76
5.3.260.0070.03812.75
5.3.250.0060.03612.75
5.3.240.0050.03812.76
5.3.230.0070.03612.74
5.3.220.0070.03412.71
5.3.210.0070.03612.71
5.3.200.0050.03712.71
5.3.190.0060.03712.71
5.3.180.0050.03712.71
5.3.170.0090.04912.71
5.3.160.0110.04212.71
5.3.150.0040.04212.71
5.3.140.0060.03612.71
5.3.130.0060.03912.70
5.3.120.0060.03812.69
5.3.110.0080.03612.70
5.3.100.0090.03312.19
5.3.90.0040.03812.17
5.3.80.0050.03612.16
5.3.70.0070.03512.16
5.3.60.0060.03612.14
5.3.50.0050.03612.09
5.3.40.0100.03212.09
5.3.30.0050.03512.05
5.3.20.0060.03511.84
5.3.10.0090.03111.80
5.3.00.0040.03711.79
5.2.170.0030.0329.30
5.2.160.0100.0249.29
5.2.150.0030.0339.29
5.2.140.0050.0339.28
5.2.130.0060.0289.24
5.2.120.0050.0309.24
5.2.110.0030.0329.25
5.2.100.0040.0299.25
5.2.90.0050.0299.25
5.2.80.0020.0329.24
5.2.70.0040.0309.25
5.2.60.0030.0319.20
5.2.50.0030.0319.17
5.2.40.0020.0319.14
5.2.30.0050.0299.12
5.2.20.0050.0299.11
5.2.10.0030.0309.03
5.2.00.0040.0308.89
5.1.60.0040.0248.18
5.1.50.0080.0208.17
5.1.40.0050.0268.15
5.1.30.0070.0248.50
5.1.20.0060.0278.52
5.1.10.0010.0288.25
5.1.00.0020.0278.25
5.0.50.0030.0216.72
5.0.40.0020.0206.58
5.0.30.0040.0306.39
5.0.20.0020.0216.38
5.0.10.0060.0176.36
5.0.00.0000.0346.36
4.4.90.0000.0184.78
4.4.80.0000.0184.75
4.4.70.0030.0154.75
4.4.60.0030.0154.75
4.4.50.0030.0164.77
4.4.40.0010.0284.73
4.4.30.0040.0144.76
4.4.20.0010.0164.84
4.4.10.0010.0174.85
4.4.00.0040.0264.76
4.3.110.0020.0164.66
4.3.100.0030.0144.66
4.3.90.0010.0154.65
4.3.80.0040.0284.65
4.3.70.0020.0154.65
4.3.60.0040.0134.65
4.3.50.0020.0184.64
4.3.40.0030.0254.60
4.3.30.0030.0223.41
4.3.20.0010.0173.38
4.3.10.0020.0153.35
4.3.00.0200.0237.37

preferences:
35.17 ms | 401 KiB | 5 Q