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(-55, -70).PHP_EOL); echo(calculateAccuracy(-57, -70).PHP_EOL); echo(calculateAccuracy(-58, -70).PHP_EOL); echo(calculateAccuracy(-59, -70).PHP_EOL); echo(calculateAccuracy(-60, -70).PHP_EOL); echo(calculateAccuracy(-61, -70).PHP_EOL); echo(calculateAccuracy(-62, -70).PHP_EOL); echo(calculateAccuracy(-64, -70).PHP_EOL); echo(calculateAccuracy(-66, -70).PHP_EOL); echo(calculateAccuracy(-68, -70).PHP_EOL); echo(calculateAccuracy(-70, -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)
8.3.60.0130.00718.68
8.3.50.0150.00422.09
8.3.40.0070.00719.09
8.3.30.0060.01219.34
8.3.20.0070.00020.59
8.3.10.0040.00423.77
8.3.00.0040.00419.38
8.2.180.0100.01018.54
8.2.170.0080.00822.96
8.2.160.0070.00720.78
8.2.150.0090.00024.18
8.2.140.0080.00024.66
8.2.130.0070.01126.16
8.2.120.0020.00520.07
8.2.110.0110.00722.34
8.2.100.0080.00417.88
8.2.90.0030.00619.48
8.2.80.0060.00317.97
8.2.70.0040.00417.88
8.2.60.0000.01018.05
8.2.50.0090.00018.07
8.2.40.0110.00018.41
8.2.30.0040.00418.28
8.2.20.0060.00317.84
8.2.10.0000.00718.45
8.2.00.0040.00817.82
8.1.280.0070.00725.92
8.1.270.0100.00024.08
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0060.00324.08
8.1.230.0080.00421.04
8.1.220.0000.00817.79
8.1.210.0000.00818.77
8.1.200.0060.00317.48
8.1.190.0000.00817.50
8.1.180.0040.00418.10
8.1.170.0030.00618.91
8.1.160.0040.00422.20
8.1.150.0040.00419.03
8.1.140.0030.00517.75
8.1.130.0000.00817.99
8.1.120.0070.00017.71
8.1.110.0080.00017.75
8.1.100.0040.00417.59
8.1.90.0070.00017.76
8.1.80.0000.00817.61
8.1.70.0000.00717.66
8.1.60.0060.00317.89
8.1.50.0040.00417.79
8.1.40.0040.00417.82
8.1.30.0000.00817.92
8.1.20.0040.00417.91
8.1.10.0050.00317.73
8.1.00.0050.00317.70
8.0.300.0080.00018.77
8.0.290.0000.00717.13
8.0.280.0030.00318.77
8.0.270.0070.00017.48
8.0.260.0030.00317.42
8.0.250.0030.00317.27
8.0.240.0040.00417.22
8.0.230.0030.00317.25
8.0.220.0070.00017.11
8.0.210.0030.00317.13
8.0.200.0060.00017.08
8.0.190.0000.00817.25
8.0.180.0030.00317.15
8.0.170.0060.00317.18
8.0.160.0000.00717.03
8.0.150.0050.00317.05
8.0.140.0070.00017.12
8.0.130.0000.00713.64
8.0.120.0040.00417.27
8.0.110.0050.00317.12
8.0.100.0040.00417.13
8.0.90.0080.00017.32
8.0.80.0030.01317.02
8.0.70.0070.00017.20
8.0.60.0030.00517.04
8.0.50.0000.00717.06
8.0.30.0080.01017.26
8.0.20.0130.00717.40
8.0.10.0050.00317.30
8.0.00.0130.00716.98
7.4.330.0000.00515.00
7.4.320.0070.00016.84
7.4.300.0000.00616.72
7.4.290.0000.00816.86
7.4.280.0030.00716.79
7.4.270.0070.00016.87
7.4.260.0030.00316.85
7.4.250.0000.01016.73
7.4.240.0020.00516.75
7.4.230.0030.00616.99
7.4.220.0150.00916.68
7.4.210.0090.00616.80
7.4.200.0040.00416.96
7.4.160.0120.01216.72
7.4.150.0160.00317.40
7.4.140.0120.00617.86
7.4.130.0090.01816.64
7.4.120.0140.00516.67
7.4.110.0110.00716.84
7.4.100.0080.01116.70
7.4.90.0110.00816.63
7.4.80.0130.01019.39
7.4.70.0100.00616.58
7.4.60.0130.00316.57
7.4.50.0030.00616.64
7.4.40.0030.01416.46
7.4.30.0060.01216.73
7.4.00.0080.00815.36
7.3.330.0050.00213.57
7.3.320.0020.00213.68
7.3.310.0030.00316.56
7.3.300.0030.00316.58
7.3.290.0070.00716.44
7.3.280.0030.01316.48
7.3.270.0030.01617.40
7.3.260.0100.00716.54
7.3.240.0060.01116.55
7.3.230.0000.01716.55
7.3.210.0100.00616.57
7.3.200.0040.01519.39
7.3.190.0180.00716.50
7.3.180.0100.00616.44
7.3.170.0130.00616.77
7.3.160.0100.01016.70
7.2.330.0170.00416.64
7.2.320.0130.01016.78
7.2.310.0090.00916.67
7.2.300.0030.01316.77
7.2.290.0060.01316.79
7.1.200.0060.00615.89
7.1.100.0430.01015.37
7.1.70.0040.00417.50
7.1.60.0140.01119.32
7.1.50.0060.01517.05
7.1.00.0070.07322.58
7.0.200.0070.00016.95
7.0.140.0070.07022.43
7.0.60.0200.07320.04
7.0.50.0070.03718.08
7.0.40.0030.04720.27
7.0.30.0270.05320.22
7.0.20.0200.08720.21
7.0.10.0130.08320.36
7.0.00.0070.08720.20
5.6.280.0070.06720.97
5.6.210.0100.08320.74
5.6.200.0130.07718.38
5.6.190.0130.08020.80
5.6.180.0330.07020.76
5.6.170.0330.05020.75
5.6.160.0100.07720.60
5.6.150.0030.08318.31
5.6.140.0030.06718.29
5.6.130.0100.07718.46
5.6.120.0000.04321.16
5.6.110.0100.08021.15
5.6.100.0030.04321.19
5.6.90.0130.07721.27
5.6.80.0070.03720.52
5.6.70.4430.04720.54
5.5.350.0170.05720.52
5.5.340.0100.04318.20
5.5.330.0030.09320.50
5.5.320.0470.07020.43
5.5.310.0270.04720.40
5.5.300.0170.06318.28
5.5.290.0170.07718.14
5.5.280.0100.05021.05
5.5.270.0070.04320.94
5.5.260.0000.04721.02
5.5.250.0030.08020.77
5.5.240.0170.04020.26
5.4.450.0630.06019.57
5.4.440.0730.06719.88
5.4.430.0970.04719.81
5.4.420.0630.00019.64
5.4.410.0630.00019.54
5.4.400.0630.00019.51
5.4.390.0630.00019.11
5.4.380.0630.00019.15
5.4.370.0630.00019.29
5.4.360.0630.00019.15
5.4.350.0670.00019.26
5.4.340.0070.03412.08
5.4.320.0050.04012.57
5.4.310.0060.04112.56
5.4.300.0100.03412.57
5.4.290.0050.04012.56
5.4.280.0070.03512.46
5.4.270.0040.03812.46
5.4.260.0070.05012.46
5.4.250.0110.05712.46
5.4.240.0130.04812.46
5.4.230.0100.04912.45
5.4.220.0040.03812.45
5.4.210.0070.03512.45
5.4.200.0060.03812.45
5.4.190.0040.03812.45
5.4.180.0080.03412.45
5.4.170.0110.03012.46
5.4.160.0050.03612.45
5.4.150.0070.03412.45
5.4.140.0070.03512.13
5.4.130.0090.03212.12
5.4.120.0050.03812.08
5.4.110.0060.04212.07
5.4.100.0050.03612.07
5.4.90.0090.03712.07
5.4.80.0070.03612.08
5.4.70.0080.03212.07
5.4.60.0050.03512.07
5.4.50.0070.03412.07
5.4.40.0100.03212.06
5.4.30.0080.03312.06
5.4.20.0070.04112.05
5.4.10.0050.03512.05
5.4.00.0040.03811.55
5.3.290.0030.04112.81
5.3.280.0080.03612.74
5.3.270.0060.03912.75
5.3.260.0070.03912.75
5.3.250.0060.03712.75
5.3.240.0050.04212.75
5.3.230.0030.04012.74
5.3.220.0060.03612.71
5.3.210.0070.03712.71
5.3.200.0050.03812.72
5.3.190.0080.03712.71
5.3.180.0060.04012.71
5.3.170.0090.04612.71
5.3.160.0100.05012.71
5.3.150.0100.04012.71
5.3.140.0080.03512.70
5.3.130.0090.04712.70
5.3.120.0160.06312.69
5.3.110.0090.04912.70
5.3.100.0080.04412.18
5.3.90.0030.04012.17
5.3.80.0060.03612.16
5.3.70.0090.03412.16
5.3.60.0050.03612.14
5.3.50.0050.03812.09
5.3.40.0080.03412.09
5.3.30.0080.03212.05
5.3.20.0050.03711.83
5.3.10.0020.03911.80
5.3.00.0050.03711.78
5.2.170.0050.0309.30
5.2.160.0060.0289.30
5.2.150.0060.0299.30
5.2.140.0040.0319.29
5.2.130.0030.0309.25
5.2.120.0060.0279.25
5.2.110.0080.0259.26
5.2.100.0080.0309.26
5.2.90.0030.0329.26
5.2.80.0040.0329.25
5.2.70.0070.0329.25
5.2.60.0090.0269.21
5.2.50.0050.0319.17
5.2.40.0030.0339.14
5.2.30.0030.0319.13
5.2.20.0050.0289.12
5.2.10.0060.0279.04
5.2.00.0090.0288.90
5.1.60.0030.0308.18
5.1.50.0020.0278.18
5.1.40.0040.0258.16
5.1.30.0040.0298.52
5.1.20.0060.0288.54
5.1.10.0060.0288.26
5.1.00.0050.0288.25
5.0.50.0070.0246.73
5.0.40.0030.0246.60
5.0.30.0050.0346.41
5.0.20.0060.0226.39
5.0.10.0020.0226.37
5.0.00.0040.0346.36
4.4.90.0030.0174.78
4.4.80.0010.0174.75
4.4.70.0030.0164.75
4.4.60.0020.0174.76
4.4.50.0030.0154.77
4.4.40.0020.0264.74
4.4.30.0020.0164.76
4.4.20.0020.0174.85
4.4.10.0040.0184.85
4.4.00.0040.0264.77
4.3.110.0020.0174.67
4.3.100.0040.0154.67
4.3.90.0050.0124.66
4.3.80.0040.0234.66
4.3.70.0040.0154.65
4.3.60.0040.0154.66
4.3.50.0060.0184.65
4.3.40.0040.0254.61
4.3.30.0030.0163.42
4.3.20.0010.0173.40
4.3.10.0030.0153.35
4.3.00.0130.0237.37

preferences:
64.65 ms | 401 KiB | 5 Q