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('N2', $l, $r))[1]; } function decode($float) { $set = unpack('N2', pack('d', $float)); return $set[1] << 32 | $set[2]; } echo decode(encode(10000000000000)).'<br><br>'; $float = encode(10000000000000); echo $float.'<br>'; echo decode($float).'<br>'; echo decode(1.1710299640683E-305).'<br>'; echo 1.1710299640683E-305;echo "<br>"; var_dump(1.1710299640683E-305 == $float);

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)
8.3.70.0100.01016.75
8.3.60.0120.00616.88
8.3.50.0090.00822.07
8.3.40.0070.00718.89
8.3.30.0040.01119.04
8.3.20.0080.00020.32
8.3.10.0090.00023.54
8.3.00.0040.00419.50
8.2.180.0110.01116.75
8.2.170.0150.00422.96
8.2.160.0070.01320.51
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0120.00326.16
8.2.120.0040.00422.23
8.2.110.0060.00320.52
8.2.100.0040.00818.16
8.2.90.0040.00419.11
8.2.80.0040.00418.15
8.2.70.0050.00317.75
8.2.60.0050.00318.05
8.2.50.0000.00818.07
8.2.40.0070.00018.41
8.2.30.0030.00618.21
8.2.20.0050.00217.70
8.2.10.0070.00018.21
8.2.00.0030.00617.72
8.1.280.0070.01125.92
8.1.270.0060.00323.96
8.1.260.0080.00026.35
8.1.250.0080.00028.09
8.1.240.0120.00023.56
8.1.230.0080.00422.82
8.1.220.0000.00817.91
8.1.210.0040.00418.77
8.1.200.0060.00317.13
8.1.190.0080.00417.53
8.1.180.0030.00619.13
8.1.170.0030.00618.63
8.1.160.0070.00022.02
8.1.150.0000.00718.63
8.1.140.0070.00017.57
8.1.130.0040.00417.77
8.1.120.0030.00317.61
8.1.110.0000.01017.54
8.1.100.0000.00717.56
8.1.90.0000.00717.52
8.1.80.0000.00817.59
8.1.70.0000.00717.41
8.1.60.0070.00317.54
8.1.50.0050.00317.54
8.1.40.0000.00817.48
8.1.30.0030.00517.68
8.1.20.0040.00417.64
8.1.10.0040.00417.68
8.1.00.0000.00817.57
8.0.300.0040.00420.85
8.0.290.0060.00317.30
8.0.280.0000.00718.57
8.0.270.0000.00717.21
8.0.260.0000.00617.32
8.0.250.0030.00316.93
8.0.240.0000.00717.09
8.0.230.0070.00017.03
8.0.220.0030.00316.93
8.0.210.0000.00716.86
8.0.200.0030.00317.02
8.0.190.0040.00417.03
8.0.180.0070.00016.89
8.0.170.0080.00017.05
8.0.160.0070.00016.98
8.0.150.0000.00716.98
8.0.140.0050.00216.92
8.0.130.0030.00313.43
8.0.120.0030.00616.83
8.0.110.0040.00416.99
8.0.100.0070.00016.77
8.0.90.0040.00417.00
8.0.80.0180.00416.98
8.0.70.0070.00016.86
8.0.60.0070.00016.98
8.0.50.0040.00416.88
8.0.30.0080.01017.34
8.0.20.0100.00917.40
8.0.10.0040.00416.98
8.0.00.0090.00916.72
7.4.330.0000.00515.21
7.4.320.0060.00016.68
7.4.300.0030.00316.68
7.4.290.0000.00716.67
7.4.280.0000.00816.55
7.4.270.0040.00416.68
7.4.260.0030.00316.58
7.4.250.0040.00416.64
7.4.240.0000.00716.65
7.4.230.0000.00716.77
7.4.220.0070.01016.59
7.4.210.0060.00816.69
7.4.200.0070.00016.53
7.4.190.0030.00316.84
7.4.160.0090.00616.29
7.4.150.0030.01417.40
7.4.140.0120.02617.86
7.4.130.0100.00716.58
7.4.120.0110.01016.63
7.4.110.0070.01016.59
7.4.100.0100.01016.46
7.4.90.0120.00616.49
7.4.80.0140.00519.39
7.4.70.0080.00916.54
7.4.60.0100.01016.78
7.4.50.0050.00316.64
7.4.40.0080.01122.77
7.4.30.0060.01216.48
7.4.00.0070.00714.91
7.3.330.0030.00313.44
7.3.320.0000.00613.37
7.3.310.0000.00716.54
7.3.300.0000.00716.49
7.3.290.0070.00716.46
7.3.280.0050.01016.47
7.3.270.0040.01417.40
7.3.260.0090.01216.41
7.3.250.0120.00916.48
7.3.240.0070.01016.47
7.3.230.0130.00316.45
7.3.210.0080.00916.34
7.3.200.0090.01319.39
7.3.190.0030.01416.81
7.3.180.0080.00816.67
7.3.170.0120.00416.30
7.3.160.0130.00716.55
7.3.120.0110.00714.93
7.2.330.0090.00916.61
7.2.320.0040.01816.88
7.2.310.0120.00916.94
7.2.300.0110.00616.83
7.2.290.0080.00816.84
7.2.00.0040.00819.59
7.1.200.0000.01015.80
7.1.100.0030.00718.04
7.1.70.0000.00917.19
7.1.60.0040.02119.46
7.1.50.0130.01016.77
7.1.00.0030.07322.55
7.0.200.0370.01314.99
7.0.140.0070.07022.08
7.0.60.0070.06320.00
7.0.50.0070.07017.99
7.0.40.0130.08720.25
7.0.30.0400.07020.29
7.0.20.0270.03720.32
7.0.10.0170.08020.29
7.0.00.0070.05020.25
5.6.280.0030.07020.81
5.6.210.0070.07720.76
5.6.200.0030.09018.32
5.6.190.0070.05020.64
5.6.180.0330.04720.56
5.6.170.0330.07020.65
5.6.160.0070.03720.73
5.6.150.0000.09018.23
5.6.140.0070.08318.22
5.6.130.0000.04318.24
5.6.120.0100.08321.12
5.6.110.0130.07721.08
5.6.100.0030.04721.16
5.6.90.0130.06721.05
5.6.80.0100.06320.55
5.5.350.4370.04320.48
5.5.340.0070.06318.07
5.5.330.0100.04020.27
5.5.320.0200.08720.34
5.5.310.0170.04320.47
5.5.300.0100.04018.04
5.5.290.0070.06718.13
5.5.280.0030.08020.89
5.5.270.0130.05721.13
5.5.260.0030.04021.13
5.5.250.0100.03320.93
5.5.240.0030.05720.36
5.4.450.0700.06719.55
5.4.440.0630.06019.45
5.4.430.0700.06319.48
5.4.420.0130.05019.56
5.4.410.0100.05719.41
5.4.400.0100.05319.22
5.4.390.0130.06019.04
5.4.380.0200.06718.51
5.4.370.0370.06318.59
5.4.360.0470.07318.79
5.4.350.0270.06718.75
5.4.340.0270.06018.77
5.4.320.0110.03912.51
5.4.310.0090.04612.50
5.4.300.0040.03812.51
5.4.290.0090.05112.49
5.4.280.0140.07412.39
5.4.270.0090.04712.39
5.4.260.0100.06912.38
5.4.250.0090.05712.39
5.4.240.0170.05212.39
5.4.230.0150.08412.38
5.4.220.0120.06812.38
5.4.210.0090.05212.38
5.4.200.0100.05212.38
5.4.190.0100.05012.37
5.4.180.0050.04612.38
5.4.170.0120.05212.39
5.4.160.0090.03912.38
5.4.150.0050.04312.38
5.4.140.0120.05212.06
5.4.130.0070.04312.05
5.4.120.0110.04812.01
5.4.110.0130.04712.00
5.4.100.0080.03512.01
5.4.90.0100.04612.01
5.4.80.0070.05212.01
5.4.70.0060.05012.00
5.4.60.0090.03912.00
5.4.50.0110.03612.00
5.4.40.0080.03711.98
5.4.30.0100.04311.98
5.4.20.0050.03811.98
5.4.10.0060.04811.98
5.4.00.0080.03811.47
5.3.290.0050.04112.80
5.3.280.0130.03912.71
5.3.270.0100.03612.73
5.3.260.0080.04912.72
5.3.250.0070.05612.72
5.3.240.0110.04012.72
5.3.230.0100.04212.71
5.3.220.0090.03712.68
5.3.210.0110.04312.68
5.3.200.0140.04712.68
5.3.190.0120.06512.68
5.3.180.0070.05112.67
5.3.170.0140.05112.67
5.3.160.0100.05412.67
5.3.150.0100.05312.68
5.3.140.0120.07412.66
5.3.130.0090.05612.66
5.3.120.0120.05012.65
5.3.110.0170.06512.66
5.3.100.0090.05312.13
5.3.90.0110.04912.11
5.3.80.0110.04712.10
5.3.70.0070.03812.09
5.3.60.0080.03812.09
5.3.50.0080.03912.03
5.3.40.0080.04112.02
5.3.30.0110.04411.98
5.3.20.0090.03511.77
5.3.10.0090.03511.74
5.3.00.0070.03811.72
5.2.170.0070.0379.22
5.2.160.0170.0499.22
5.2.150.0110.0409.22
5.2.140.0070.0439.22
5.2.130.0040.0349.18
5.2.120.0070.0299.18
5.2.110.0050.0319.18
5.2.100.0040.0329.18
5.2.90.0060.0319.18
5.2.80.0070.0329.17
5.2.70.0060.0349.18
5.2.60.0070.0339.13
5.2.50.0100.0299.10
5.2.40.0100.0489.07
5.2.30.0030.0349.05
5.2.20.0050.0339.04
5.2.10.0080.0328.95
5.2.00.0060.0318.81
5.1.60.0060.0268.09
5.1.50.0090.0348.09
5.1.40.0090.0248.07
5.1.30.0060.0278.42
5.1.20.0130.0388.45
5.1.10.0050.0338.16
5.1.00.0050.0318.16
5.0.50.0300.0696.65
5.0.40.0130.0336.50
5.0.30.0060.0396.31
5.0.20.0080.0266.29
5.0.10.0110.0406.27
5.0.00.0080.0476.25
4.4.90.0080.0464.78
4.4.80.0060.0434.76
4.4.70.0060.0234.76
4.4.60.0040.0224.75
4.4.50.0080.0274.77
4.4.40.0090.0544.71
4.4.30.0050.0374.76
4.4.20.0060.0374.84
4.4.10.0050.0274.85
4.4.00.0060.0354.76
4.3.110.0030.0234.67
4.3.100.0060.0204.67
4.3.90.0030.0224.64
4.3.80.0050.0334.59
4.3.70.0020.0234.63
4.3.60.0060.0194.63
4.3.50.0030.0264.63
4.3.40.0050.0294.54
4.3.30.0020.0223.30
4.3.20.0030.0213.28
4.3.10.0040.0203.24
4.3.00.0170.0237.16

preferences:
57.09 ms | 401 KiB | 5 Q