3v4l.org

run code in 300+ PHP versions simultaneously
<?php function getFloatFromInteger($integer) { $hex = dechex($integer); $pack = pack('H*', $hex); $pack = strrev($pack); echo $pack; $result = unpack('d*', $pack); return $result[1]; } $test = getFloatFromInteger(4619191942746344941); echo PHP_INT_MAX;

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)
8.3.60.0100.01018.39
8.3.50.0140.00522.93
8.3.40.0070.00718.59
8.3.30.0120.00319.17
8.3.20.0050.00220.33
8.3.10.0080.00023.61
8.3.00.0040.00419.26
8.2.180.0040.01118.54
8.2.170.0070.00722.96
8.2.160.0080.00820.57
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0060.00326.16
8.2.120.0040.00420.92
8.2.110.0080.00422.08
8.2.100.0040.00717.68
8.2.90.0050.00317.75
8.2.80.0040.00717.97
8.2.70.0000.00818.05
8.2.60.0040.00417.93
8.2.50.0040.00418.10
8.2.40.0040.00420.42
8.2.30.0000.00718.14
8.2.20.0030.00517.55
8.2.10.0080.00018.11
8.2.00.0020.00517.75
8.1.280.0130.01025.92
8.1.270.0040.00423.75
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0060.00323.86
8.1.230.0080.00419.15
8.1.220.0080.00017.74
8.1.210.0040.00418.77
8.1.200.0060.00617.10
8.1.190.0030.00617.00
8.1.180.0030.00618.10
8.1.170.0050.00518.49
8.1.160.0040.00421.96
8.1.150.0030.00518.86
8.1.140.0000.00717.45
8.1.130.0030.00317.82
8.1.120.0000.00717.29
8.1.110.0000.00817.41
8.1.100.0040.00417.28
8.1.90.0050.00217.32
8.1.80.0000.00717.30
8.1.70.0030.00317.34
8.1.60.0070.00017.51
8.1.50.0000.00817.43
8.1.40.0000.00717.39
8.1.30.0040.00417.54
8.1.20.0050.00317.67
8.1.10.0070.00017.53
8.1.00.0000.00717.55
8.0.300.0040.00419.65
8.0.290.0100.00016.63
8.0.280.0000.00718.34
8.0.270.0000.00717.27
8.0.260.0000.00617.26
8.0.250.0000.00716.83
8.0.240.0030.00316.82
8.0.230.0030.00416.77
8.0.220.0040.00416.82
8.0.210.0000.00716.82
8.0.200.0070.00016.93
8.0.190.0040.00416.89
8.0.180.0030.00616.89
8.0.170.0050.00316.89
8.0.160.0040.00416.71
8.0.150.0070.00016.71
8.0.140.0030.00316.71
8.0.130.0070.00013.29
8.0.120.0000.01016.76
8.0.110.0000.00716.82
8.0.100.0070.00016.84
8.0.90.0070.00016.86
8.0.80.0030.01216.78
8.0.70.0000.00716.73
8.0.60.0070.00016.71
8.0.50.0080.00016.61
8.0.30.0160.00817.27
8.0.20.0090.01017.40
8.0.10.0040.00416.82
8.0.00.0070.01116.73
7.4.330.0030.00315.01
7.4.320.0000.00716.30
7.4.300.0070.00016.50
7.4.290.0030.00316.50
7.4.280.0050.00316.64
7.4.270.0070.00016.59
7.4.260.0030.00316.59
7.4.250.0000.00816.53
7.4.240.0010.00716.46
7.4.230.0070.00016.40
7.4.220.0070.01016.43
7.4.210.0040.01116.64
7.4.200.0070.00016.69
7.4.160.0120.00516.52
7.4.150.0180.00017.40
7.4.140.0100.00717.86
7.4.130.0070.00916.46
7.4.120.0080.00916.57
7.4.110.0070.01516.59
7.4.100.0150.00616.54
7.4.90.0100.00716.45
7.4.80.0180.00619.39
7.4.70.0120.00616.43
7.4.60.0030.01316.50
7.4.50.0000.00416.37
7.4.40.0110.00616.51
7.4.30.0090.00816.70
7.4.00.0030.01314.75
7.3.330.0030.00313.36
7.3.320.0000.00513.29
7.3.310.0030.00316.18
7.3.300.0050.00216.23
7.3.290.0030.01016.30
7.3.280.0070.01216.29
7.3.270.0120.01217.40
7.3.260.0080.00916.44
7.3.250.0100.01016.37
7.3.240.0140.00316.58
7.3.230.0110.00616.59
7.3.210.0120.00816.57
7.3.200.0140.00719.39
7.3.190.0060.01016.44
7.3.180.0100.00616.43
7.3.170.0090.00616.51
7.3.160.0060.00916.66
7.3.10.0060.01116.62
7.3.00.0120.00716.67
7.2.330.0080.01116.62
7.2.320.0070.01016.38
7.2.310.0150.00816.45
7.2.300.0120.00616.63
7.2.290.0090.00616.55
7.2.130.0040.01216.61
7.2.120.0090.01116.73
7.2.110.0120.00816.80
7.2.100.0050.01116.69
7.2.90.0110.00716.68
7.2.80.0060.01016.63
7.2.70.0080.00816.82
7.2.60.0080.00816.65
7.2.50.0080.00816.83
7.2.40.0100.00816.72
7.2.30.0100.00716.99
7.2.20.0070.00916.82
7.2.10.0080.00716.67
7.2.00.0020.01317.46
7.1.250.0080.00815.70
7.1.100.0060.00917.93
7.1.70.0050.00517.09
7.1.60.0060.01619.46
7.1.50.0070.01017.10
7.1.00.0000.08022.57
7.0.200.0070.00716.70
7.0.140.0070.07021.91
7.0.60.0030.08019.83
7.0.50.0070.08017.87
7.0.40.0070.09020.27
7.0.30.0400.04720.17
7.0.20.0270.07720.07
7.0.10.0070.07020.07
7.0.00.0070.08320.11
5.6.280.0000.07721.12
5.6.210.0070.08720.51
5.6.200.0000.09018.25
5.6.190.0130.04020.45
5.6.180.0270.07020.52
5.6.170.0270.08020.62
5.6.160.0030.08020.43
5.6.150.0000.08718.29
5.6.140.0000.04718.18
5.6.130.0100.05018.15
5.6.120.0070.08321.14
5.6.110.0100.05720.98
5.6.100.0000.04320.98
5.6.90.0070.09021.10
5.6.80.0100.04320.41
5.6.70.4670.03320.59
5.5.350.0100.05320.45
5.5.340.0030.05317.95
5.5.330.0100.08020.42
5.5.320.0100.06320.34
5.5.310.0370.06720.26
5.5.300.0030.05717.96
5.5.290.0100.03318.08
5.5.280.0100.06020.77
5.5.270.0070.03720.77
5.5.260.0170.08320.68
5.5.250.0030.08320.57
5.5.240.0230.07320.19
5.4.450.0670.04019.32
5.4.440.0130.04719.30
5.4.430.0030.03719.63
5.4.420.0130.04019.19
5.4.410.0470.04019.39
5.4.400.0330.03319.06
5.4.390.0330.04319.12
5.4.380.0270.06018.46
5.4.370.0600.06718.56
5.4.360.0500.05018.46
5.4.350.0270.06318.75
5.4.340.0930.06318.78
5.4.320.0070.03912.50
5.4.310.0090.04312.50
5.4.300.0130.04912.50
5.4.290.0130.03712.50
5.4.280.0080.03712.39
5.4.270.0050.04112.40
5.4.260.0100.04412.40
5.4.250.0110.03712.40
5.4.240.0030.03912.40
5.4.230.0080.03712.39
5.4.220.0050.03812.39
5.4.210.0070.04212.39
5.4.200.0090.03712.39
5.4.190.0040.03912.39
5.4.180.0050.03712.39
5.4.170.0060.03712.40
5.4.160.0080.03412.39
5.4.150.0040.03912.39
5.4.140.0080.04012.07
5.4.130.0090.03612.06
5.4.120.0060.03712.02
5.4.110.0030.04112.01
5.4.100.0080.03912.02
5.4.90.0080.04612.01
5.4.80.0060.03712.01
5.4.70.0060.03912.01
5.4.60.0070.03312.01
5.4.50.0060.03512.01
5.4.40.0050.03612.00
5.4.30.0060.03511.99
5.4.20.0060.03611.99
5.4.10.0060.03611.99
5.4.00.0100.03511.48
5.3.290.0070.03912.80
5.3.280.0060.03912.71
5.3.270.0100.04712.72
5.3.260.0060.04012.72
5.3.250.0060.03712.71
5.3.240.0090.03612.72
5.3.230.0110.03412.71
5.3.220.0070.03612.68
5.3.210.0050.04112.68
5.3.200.0080.03712.68
5.3.190.0080.03712.68
5.3.180.0070.03512.67
5.3.170.0060.04012.67
5.3.160.0070.03812.68
5.3.150.0100.03512.67
5.3.140.0040.04712.66
5.3.130.0060.04012.65
5.3.120.0110.04112.65
5.3.110.0100.03812.66
5.3.100.0080.04212.12
5.3.90.0070.03512.10
5.3.80.0060.03612.09
5.3.70.0090.04412.09
5.3.60.0070.03612.08
5.3.50.0070.03512.02
5.3.40.0060.03912.02
5.3.30.0090.03911.98
5.3.20.0110.03911.76
5.3.10.0070.03411.73
5.3.00.0070.03611.71
5.2.170.0050.0329.22
5.2.160.0070.0349.21
5.2.150.0060.0349.21
5.2.140.0060.0309.21
5.2.130.0030.0309.17
5.2.120.0040.0289.18
5.2.110.0060.0359.18
5.2.100.0050.0289.18
5.2.90.0090.0279.18
5.2.80.0050.0309.17
5.2.70.0030.0329.17
5.2.60.0050.0309.13
5.2.50.0050.0319.09
5.2.40.0070.0369.07
5.2.30.0100.0379.05
5.2.20.0090.0329.03
5.2.10.0080.0288.94
5.2.00.0030.0318.80
5.1.60.0040.0248.09
5.1.50.0050.0258.08
5.1.40.0060.0268.06
5.1.30.0070.0248.41
5.1.20.0020.0338.43
5.1.10.0060.0268.16
5.1.00.0050.0278.16
5.0.50.0060.0186.64
5.0.40.0030.0206.50
5.0.30.0030.0336.31
5.0.20.0040.0186.28
5.0.10.0030.0206.26
5.0.00.0030.0346.25
4.4.90.0020.0174.78
4.4.80.0020.0174.75
4.4.70.0020.0164.75
4.4.60.0030.0174.76
4.4.50.0020.0244.77
4.4.40.0050.0234.71
4.4.30.0040.0154.76
4.4.20.0040.0164.84
4.4.10.0050.0144.85
4.4.00.0050.0224.76
4.3.110.0070.0124.67
4.3.100.0030.0154.67
4.3.90.0050.0174.63
4.3.80.0050.0234.58
4.3.70.0050.0194.63
4.3.60.0020.0154.63
4.3.50.0040.0154.63
4.3.40.0030.0254.54
4.3.30.0020.0223.30
4.3.20.0020.0163.28
4.3.10.0000.0173.24
4.3.00.0030.01318.23

preferences:
48.77 ms | 401 KiB | 5 Q