3v4l.org

run code in 300+ PHP versions simultaneously
<?php function encode($int) { $int = round($int); $left = 0xffffffff00000000; $right = 0x00000000ffffffff; $l = ($int & $left) >>32; $r = $int & $right; return unpack('d', pack('NN', $l, $r))[1]; } function decode($float){ $set = unpack('N2', pack('d', $float)); return $set[1] << 32 | $set[2]; } echo decode(1.1710299640683E-305);

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)
8.3.60.0110.00416.63
8.3.50.0100.00821.92
8.3.40.0160.00018.69
8.3.30.0140.00019.27
8.3.20.0000.00719.99
8.3.10.0070.00023.48
8.3.00.0080.00019.13
8.2.180.0120.00318.16
8.2.170.0070.00722.96
8.2.160.0210.00020.35
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0090.00026.16
8.2.120.0040.00422.31
8.2.110.0110.01122.11
8.2.100.0040.00817.91
8.2.90.0040.00419.30
8.2.80.0000.00818.05
8.2.70.0160.00317.00
8.2.60.0030.00518.03
8.2.50.0060.00318.07
8.2.40.0090.00018.34
8.2.30.0040.00418.13
8.2.20.0000.00817.75
8.2.10.0080.00018.04
8.2.00.0030.00617.63
8.1.280.0140.00325.92
8.1.270.0080.00023.79
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0090.00023.79
8.1.230.0070.00419.15
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0030.00617.22
8.1.190.0050.00317.51
8.1.180.0050.00518.10
8.1.170.0040.00418.51
8.1.160.0000.00721.86
8.1.150.0040.00418.63
8.1.140.0050.00317.31
8.1.130.0070.00017.71
8.1.120.0030.00617.30
8.1.110.0040.00417.38
8.1.100.0040.00417.41
8.1.90.0000.00717.44
8.1.80.0000.00717.43
8.1.70.0030.00317.30
8.1.60.0000.00817.61
8.1.50.0000.00817.43
8.1.40.0000.00717.38
8.1.30.0040.00417.57
8.1.20.0000.00817.70
8.1.10.0030.00617.54
8.1.00.0080.00017.49
8.0.300.0050.00320.73
8.0.290.0070.00017.18
8.0.280.0050.00318.45
8.0.270.0080.00017.18
8.0.260.0030.00317.27
8.0.250.0000.00716.85
8.0.240.0030.00316.88
8.0.230.0000.00716.97
8.0.220.0000.00816.90
8.0.210.0070.00016.76
8.0.200.0040.00416.87
8.0.190.0000.00716.86
8.0.180.0000.00716.83
8.0.170.0070.00016.89
8.0.160.0030.00316.82
8.0.150.0030.00616.67
8.0.140.0040.00416.68
8.0.130.0060.00013.30
8.0.120.0000.00716.83
8.0.110.0000.00716.74
8.0.100.0040.00416.72
8.0.90.0050.00216.72
8.0.80.0080.00816.81
8.0.70.0000.00716.72
8.0.60.0070.00016.84
8.0.50.0040.00416.87
8.0.30.0090.01017.05
8.0.20.0130.00517.40
8.0.10.0000.00716.98
8.0.00.0070.01016.79
7.4.330.0020.00215.00
7.4.320.0000.00616.38
7.4.300.0000.00716.65
7.4.290.0030.00316.52
7.4.280.0020.00516.44
7.4.270.0040.00416.66
7.4.260.0070.00016.48
7.4.250.0040.00416.50
7.4.240.0020.00516.50
7.4.230.0000.00616.42
7.4.220.0090.00616.64
7.4.210.0080.00916.62
7.4.200.0080.00016.68
7.4.190.0030.00316.37
7.4.160.0120.00316.38
7.4.150.0160.00617.40
7.4.140.0140.00317.86
7.4.130.0070.01016.53
7.4.120.0110.00616.50
7.4.110.0120.00916.53
7.4.100.0060.01216.39
7.4.90.0120.00616.52
7.4.80.0090.00919.39
7.4.70.0120.00916.29
7.4.60.0060.00916.37
7.4.50.0030.00516.36
7.4.40.0050.00522.77
7.4.30.0080.01416.55
7.4.00.0030.01314.80
7.3.330.0000.00513.32
7.3.320.0030.00313.33
7.3.310.0000.00716.33
7.3.300.0000.00716.34
7.3.290.0100.00716.25
7.3.280.0050.01216.23
7.3.270.0150.00717.40
7.3.260.0110.01116.54
7.3.250.0120.00516.33
7.3.240.0100.00616.51
7.3.230.0100.00716.47
7.3.210.0080.00916.45
7.3.200.0130.00919.39
7.3.190.0100.00716.19
7.3.180.0130.00616.31
7.3.170.0120.00616.62
7.3.160.0120.00416.42
7.3.120.0060.00914.99
7.2.330.0130.00316.38
7.2.320.0110.00716.38
7.2.310.0160.00316.40
7.2.300.0140.00316.86
7.2.290.0030.01316.57
7.2.60.0190.00216.66
7.2.00.0030.01019.43
7.1.200.0070.00715.72
7.1.100.0070.00717.71
7.1.70.0000.01517.01
7.1.60.0100.01419.46
7.1.50.0000.01616.76
7.1.00.0070.07322.45
7.0.200.0060.00316.79
7.0.140.0000.07721.95
7.0.60.0130.08020.03
7.0.50.0170.07717.77
7.0.40.0070.04720.25
7.0.30.0330.07020.16
7.0.20.0270.05320.23
7.0.10.0100.08020.10
7.0.00.0100.08020.18
5.6.280.0030.07321.09
5.6.210.0030.07720.63
5.6.200.0070.09018.24
5.6.190.0000.05720.77
5.6.180.0270.06320.67
5.6.170.0200.05720.48
5.6.160.0000.09320.46
5.6.150.0070.07718.25
5.6.140.0030.04718.15
5.6.130.0100.08018.16
5.6.120.0130.08021.15
5.6.110.0100.04021.08
5.6.100.0030.08721.00
5.6.90.0100.08021.04
5.6.80.0070.08320.46
5.6.70.4300.03720.44
5.5.350.0170.08020.48
5.5.340.0030.05018.00
5.5.330.0130.05020.42
5.5.320.0270.04320.30
5.5.310.0170.05320.32
5.5.300.0070.03717.98
5.5.290.0100.07717.98
5.5.280.0170.07720.88
5.5.270.0100.08320.68
5.5.260.0200.06720.87
5.5.250.0130.03020.69
5.5.240.0170.04320.36
5.4.450.0830.06719.67
5.4.440.0130.05719.58
5.4.430.0830.05719.46
5.4.420.0170.06319.54
5.4.410.0900.05319.35
5.4.400.0630.06319.05
5.4.390.0830.06319.29
5.4.380.0400.04318.75
5.4.370.0200.07018.73
5.4.360.0430.04718.76
5.4.350.0300.05318.51
5.4.340.0370.06718.81
5.4.320.0080.03812.51
5.4.310.0060.04012.50
5.4.300.0080.04412.51
5.4.290.0140.05412.49
5.4.280.0070.03712.39
5.4.270.0110.03512.38
5.4.260.0100.03712.39
5.4.250.0090.03712.39
5.4.240.0100.03412.39
5.4.230.0060.04312.38
5.4.220.0090.03712.38
5.4.210.0070.03712.38
5.4.200.0080.03912.38
5.4.190.0050.04012.38
5.4.180.0080.03912.38
5.4.170.0090.03612.39
5.4.160.0050.04012.38
5.4.150.0150.03212.37
5.4.140.0090.03712.06
5.4.130.0080.03512.05
5.4.120.0050.04112.01
5.4.110.0080.03612.00
5.4.100.0080.03512.00
5.4.90.0070.03812.00
5.4.80.0100.05112.00
5.4.70.0070.03712.00
5.4.60.0070.03812.00
5.4.50.0070.03512.00
5.4.40.0060.03611.98
5.4.30.0070.04211.98
5.4.20.0160.04311.98
5.4.10.0080.04911.98
5.4.00.0090.04811.47
5.3.290.0040.04112.80
5.3.280.0110.04412.71
5.3.270.0100.05012.72
5.3.260.0090.05712.72
5.3.250.0050.04112.72
5.3.240.0110.03412.71
5.3.230.0110.03512.71
5.3.220.0060.04312.68
5.3.210.0070.03912.68
5.3.200.0030.04112.68
5.3.190.0050.03912.68
5.3.180.0060.04012.68
5.3.170.0100.04912.67
5.3.160.0100.03612.67
5.3.150.0100.03712.68
5.3.140.0110.04912.66
5.3.130.0060.05212.65
5.3.120.0110.03712.66
5.3.110.0080.04012.66
5.3.100.0070.04112.13
5.3.90.0070.05212.11
5.3.80.0110.05012.10
5.3.70.0050.03712.09
5.3.60.0060.03812.08
5.3.50.0060.03912.02
5.3.40.0070.04312.03
5.3.30.0070.03711.98
5.3.20.0090.04011.77
5.3.10.0080.03511.74
5.3.00.0100.05011.72
5.2.170.0060.0429.23
5.2.160.0130.0339.22
5.2.150.0060.0349.22
5.2.140.0070.0389.21
5.2.130.0070.0379.18
5.2.120.0090.0289.18
5.2.110.0090.0299.18
5.2.100.0090.0259.18
5.2.90.0100.0269.18
5.2.80.0040.0369.17
5.2.70.0090.0269.17
5.2.60.0060.0309.13
5.2.50.0060.0329.09
5.2.40.0080.0299.07
5.2.30.0060.0319.05
5.2.20.0070.0419.04
5.2.10.0040.0418.95
5.2.00.0060.0428.80
5.1.60.0080.0268.09
5.1.50.0060.0298.09
5.1.40.0070.0268.07
5.1.30.0060.0278.43
5.1.20.0090.0268.45
5.1.10.0050.0298.16
5.1.00.0050.0378.17
5.0.50.0000.0256.64
5.0.40.0030.0216.50
5.0.30.0040.0326.31
5.0.20.0030.0206.29
5.0.10.0040.0206.26
5.0.00.0050.0366.25
4.4.90.0040.0184.78
4.4.80.0060.0214.76
4.4.70.0090.0154.75
4.4.60.0090.0194.75
4.4.50.0040.0164.77
4.4.40.0050.0254.71
4.4.30.0030.0164.76
4.4.20.0050.0304.84
4.4.10.0020.0214.85
4.4.00.0080.0264.76
4.3.110.0040.0184.67
4.3.100.0060.0204.66
4.3.90.0130.0244.63
4.3.80.0060.0264.59
4.3.70.0060.0204.63
4.3.60.0080.0114.63
4.3.50.0070.0144.63
4.3.40.0030.0284.54
4.3.30.0040.0173.30
4.3.20.0060.0203.28
4.3.10.0020.0203.24
4.3.00.0100.01710.31

preferences:
34.04 ms | 401 KiB | 5 Q