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(-100, -70)); echo(calculateAccuracy(-120, -70)); echo(calculateAccuracy(-140, -70)); echo(calculateAccuracy(-160, -70)); echo(calculateAccuracy(-180, -70)); echo(calculateAccuracy(-200, -70)); echo(calculateAccuracy(-220, -70));

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)
8.3.60.0170.00318.34
8.3.50.0130.00922.22
8.3.40.0100.00719.14
8.3.30.0120.00619.34
8.3.20.0080.00020.66
8.3.10.0070.00023.84
8.3.00.0080.00019.38
8.2.180.0070.01017.00
8.2.170.0140.00722.96
8.2.160.0100.00320.72
8.2.150.0040.00424.18
8.2.140.0060.00324.66
8.2.130.0040.00426.16
8.2.120.0070.00022.54
8.2.110.0060.00322.50
8.2.100.0030.00720.77
8.2.90.0040.00419.52
8.2.80.0000.00817.97
8.2.70.0040.00417.87
8.2.60.0080.00318.16
8.2.50.0000.00818.07
8.2.40.0050.00318.34
8.2.30.0100.00018.37
8.2.20.0060.00317.97
8.2.10.0070.00018.40
8.2.00.0070.00217.87
8.1.280.0140.00725.92
8.1.270.0050.00324.22
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0100.00022.22
8.1.230.0030.00719.20
8.1.220.0050.00317.91
8.1.210.0040.00418.77
8.1.200.0000.00917.60
8.1.190.0080.00017.48
8.1.180.0030.00818.10
8.1.170.0040.00418.77
8.1.160.0000.00722.30
8.1.150.0070.00019.14
8.1.140.0040.00417.63
8.1.130.0030.00617.95
8.1.120.0050.00217.76
8.1.110.0070.00017.71
8.1.100.0000.00717.61
8.1.90.0070.00017.60
8.1.80.0000.00817.61
8.1.70.0000.00717.68
8.1.60.0040.00417.83
8.1.50.0060.00317.75
8.1.40.0050.00317.69
8.1.30.0080.00017.88
8.1.20.0040.00417.79
8.1.10.0000.00817.68
8.1.00.0080.00017.65
8.0.300.0060.00318.77
8.0.290.0000.00716.88
8.0.280.0030.00318.68
8.0.270.0050.00317.54
8.0.260.0020.00517.44
8.0.250.0000.00717.11
8.0.240.0030.00317.07
8.0.230.0040.00417.11
8.0.220.0030.00316.99
8.0.210.0060.00017.05
8.0.200.0070.00017.08
8.0.190.0080.00017.15
8.0.180.0000.00717.12
8.0.170.0030.00617.02
8.0.160.0080.00017.12
8.0.150.0030.00516.88
8.0.140.0040.00417.00
8.0.130.0060.00013.50
8.0.120.0000.00717.03
8.0.110.0000.00717.00
8.0.100.0070.00016.96
8.0.90.0000.00817.07
8.0.80.0150.00416.96
8.0.70.0040.00417.15
8.0.60.0070.00017.00
8.0.50.0050.00316.94
8.0.30.0150.00417.22
8.0.20.0070.01117.45
8.0.10.0040.00417.23
8.0.00.0130.01016.86
7.4.330.0020.00215.00
7.4.320.0030.00316.68
7.4.300.0060.00016.75
7.4.290.0030.00316.69
7.4.280.0030.00616.74
7.4.270.0030.00316.75
7.4.260.0030.00316.67
7.4.250.0080.00016.71
7.4.240.0030.00316.83
7.4.230.0070.00016.83
7.4.220.0110.00816.84
7.4.210.0090.00916.70
7.4.200.0030.00716.74
7.4.160.0060.01916.59
7.4.150.0130.00617.40
7.4.140.0120.00817.86
7.4.130.0160.00816.67
7.4.120.0120.00616.64
7.4.110.0100.00716.55
7.4.100.0000.01716.77
7.4.90.0140.00316.66
7.4.80.0070.01119.39
7.4.70.0100.00616.63
7.4.60.0090.00616.58
7.4.50.0000.00916.45
7.4.40.0060.01116.51
7.4.30.0070.01016.79
7.4.00.0080.00815.32
7.3.330.0030.00513.44
7.3.320.0000.00613.39
7.3.310.0030.00316.61
7.3.300.0030.00316.65
7.3.290.0030.01216.48
7.3.280.0060.01116.51
7.3.270.0110.01017.40
7.3.260.0090.00916.64
7.3.240.0130.00616.86
7.3.230.0080.00816.39
7.3.210.0090.00916.42
7.3.200.0100.00719.39
7.3.190.0070.01116.57
7.3.180.0040.01416.77
7.3.170.0060.01016.50
7.3.160.0150.00616.41
7.2.330.0120.00916.88
7.2.320.0060.01216.57
7.2.310.0170.01416.75
7.2.300.0080.01116.52
7.2.290.0120.00616.44
7.2.60.0080.00017.21
7.1.200.0030.00616.02
7.1.100.0520.00715.93
7.1.70.0030.00617.34
7.1.60.0160.00919.32
7.1.50.0100.01017.11
7.1.00.0000.08022.63
7.0.200.0000.00916.73
7.0.140.0030.07322.11
7.0.60.0000.04720.06
7.0.50.0030.04318.13
7.0.40.0030.06320.43
7.0.30.0330.04720.20
7.0.20.0370.07320.39
7.0.10.0100.06720.20
7.0.00.0000.05020.29
5.6.280.0070.06721.29
5.6.210.0200.06720.89
5.6.200.0070.08718.32
5.6.190.0070.06320.72
5.6.180.0130.05020.73
5.6.170.0470.07020.58
5.6.160.0100.07320.67
5.6.150.0030.05318.34
5.6.140.0070.05318.26
5.6.130.0000.05718.27
5.6.120.0170.04020.92
5.6.110.0070.08321.13
5.6.100.0070.04721.11
5.6.90.0200.06021.23
5.6.80.0100.03020.60
5.5.350.0100.04720.54
5.5.340.0100.08318.20
5.5.330.0100.08020.45
5.5.320.0330.04320.38
5.5.310.0300.07320.36
5.5.300.0070.04718.11
5.5.290.0170.05718.14
5.5.280.0070.07021.04
5.5.270.0130.07720.94
5.5.260.0030.07320.87
5.5.250.0100.05320.74
5.5.240.0270.03720.41
5.4.450.0670.06019.44
5.4.440.0870.04719.56
5.4.430.0670.05719.26
5.4.420.0800.00019.44
5.4.410.0630.00019.38
5.4.400.0670.00019.35
5.4.390.0670.00019.30
5.4.380.0700.00019.25
5.4.370.0730.00019.20
5.4.360.0670.00019.19
5.4.350.0930.00019.11
5.4.340.0040.03512.07
5.4.320.0050.04012.56
5.4.310.0090.04112.55
5.4.300.0100.04112.56
5.4.290.0040.04512.56
5.4.280.0090.03512.45
5.4.270.0030.03812.45
5.4.260.0060.03612.45
5.4.250.0070.03612.46
5.4.240.0050.03612.46
5.4.230.0060.03712.45
5.4.220.0090.03312.44
5.4.210.0070.03412.45
5.4.200.0050.03912.45
5.4.190.0060.03812.44
5.4.180.0030.04012.44
5.4.170.0060.03712.45
5.4.160.0080.03612.45
5.4.150.0070.03512.44
5.4.140.0040.03812.12
5.4.130.0060.03412.11
5.4.120.0030.03712.07
5.4.110.0030.03712.07
5.4.100.0080.03312.07
5.4.90.0080.04112.07
5.4.80.0060.04112.07
5.4.70.0060.03212.06
5.4.60.0020.04212.06
5.4.50.0030.03712.06
5.4.40.0070.03312.05
5.4.30.0070.03712.05
5.4.20.0030.03812.05
5.4.10.0080.04012.05
5.4.00.0070.03511.54
5.3.290.0080.04312.80
5.3.280.0060.04312.73
5.3.270.0090.04112.75
5.3.260.0060.04012.74
5.3.250.0070.03712.74
5.3.240.0080.03512.75
5.3.230.0080.03612.73
5.3.220.0080.03612.70
5.3.210.0040.03912.70
5.3.200.0080.03412.70
5.3.190.0080.03512.70
5.3.180.0110.03912.70
5.3.170.0050.04912.70
5.3.160.0080.04112.70
5.3.150.0060.04312.70
5.3.140.0070.04212.70
5.3.130.0080.03912.68
5.3.120.0050.04012.68
5.3.110.0080.03712.68
5.3.100.0060.03612.18
5.3.90.0060.03712.16
5.3.80.0070.04612.15
5.3.70.0070.03912.15
5.3.60.0100.03112.14
5.3.50.0080.03912.09
5.3.40.0060.03812.08
5.3.30.0070.03412.04
5.3.20.0070.04011.82
5.3.10.0050.03411.79
5.3.00.0050.03611.77
5.2.170.0040.0309.28
5.2.160.0070.0289.27
5.2.150.0050.0309.27
5.2.140.0040.0319.27
5.2.130.0060.0289.23
5.2.120.0060.0309.23
5.2.110.0040.0299.23
5.2.100.0050.0279.24
5.2.90.0040.0299.24
5.2.80.0060.0299.23
5.2.70.0060.0289.23
5.2.60.0060.0289.18
5.2.50.0040.0349.15
5.2.40.0060.0309.13
5.2.30.0040.0309.11
5.2.20.0060.0299.09
5.2.10.0030.0309.02
5.2.00.0060.0288.88
5.1.60.0060.0228.16
5.1.50.0030.0348.16
5.1.40.0050.0338.14
5.1.30.0070.0328.49
5.1.20.0060.0268.51
5.1.10.0010.0288.23
5.1.00.0050.0278.24
5.0.50.0010.0226.71
5.0.40.0050.0216.57
5.0.30.0020.0326.39
5.0.20.0050.0176.37
5.0.10.0040.0196.35
5.0.00.0030.0316.34
4.4.90.0030.0154.78
4.4.80.0010.0174.75
4.4.70.0020.0174.76
4.4.60.0050.0134.75
4.4.50.0040.0134.77
4.4.40.0010.0274.71
4.4.30.0000.0184.76
4.4.20.0040.0144.84
4.4.10.0030.0154.85
4.4.00.0050.0224.76
4.3.110.0040.0154.67
4.3.100.0040.0134.67
4.3.90.0040.0144.64
4.3.80.0010.0264.64
4.3.70.0020.0154.64
4.3.60.0010.0164.64
4.3.50.0040.0144.63
4.3.40.0030.0234.59
4.3.30.0020.0163.39
4.3.20.0000.0183.38
4.3.10.0030.0153.34
4.3.00.0100.0277.37

preferences:
36.98 ms | 401 KiB | 5 Q