3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = ['x', 'y', 'z']; $mask = 5; $count = count($arr); $mask &= pow(2, $count) - 1; $offset = $count - 1; $result = []; foreach ($arr as $k => $v) { var_dump($offset, $k); if (($mask >> ($offset - $k)) & 0x1) { $result[] = $v; } } var_dump($result);

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)
8.3.60.0070.01416.50
8.3.50.0130.00721.21
8.3.40.0080.00818.59
8.3.30.0180.00018.80
8.3.20.0020.00520.07
8.3.10.0070.00021.85
8.3.00.0030.00517.68
8.2.180.0170.00316.75
8.2.170.0140.00722.96
8.2.160.0030.01020.52
8.2.150.0050.00324.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0050.00221.15
8.2.110.0060.00322.26
8.2.100.0060.00620.40
8.2.90.0060.00319.21
8.2.80.0080.00017.97
8.2.70.0000.00817.63
8.2.60.0040.00418.04
8.2.50.0060.00318.07
8.2.40.0000.00818.22
8.2.30.0030.00718.30
8.2.20.0050.00217.74
8.2.10.0000.00718.13
8.2.00.0000.00817.66
8.1.280.0110.00425.92
8.1.270.0090.00023.79
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0060.00322.05
8.1.230.0070.00319.11
8.1.220.0060.00317.78
8.1.210.0040.00418.77
8.1.200.0060.00317.35
8.1.190.0000.00817.00
8.1.180.0030.00518.10
8.1.170.0040.00418.41
8.1.160.0040.00422.00
8.1.150.0030.00518.97
8.1.140.0070.00017.44
8.1.130.0070.00017.78
8.1.120.0040.00417.34
8.1.110.0000.00917.41
8.1.100.0050.00317.46
8.1.90.0100.00217.41
8.1.80.0070.00017.34
8.1.70.0030.00517.46
8.1.60.0060.00317.50
8.1.50.0040.00417.50
8.1.40.0040.00417.51
8.1.30.0000.00817.63
8.1.20.0040.00417.63
8.1.10.0000.00817.42
8.1.00.0040.00417.39
8.0.300.0000.00718.77
8.0.290.0000.00716.63
8.0.280.0000.00818.43
8.0.270.0040.00417.29
8.0.260.0040.00417.23
8.0.250.0000.00716.95
8.0.240.0040.00416.97
8.0.230.0000.00716.81
8.0.220.0030.00416.79
8.0.210.0000.00816.77
8.0.200.0000.00716.99
8.0.190.0050.00216.93
8.0.180.0040.00416.96
8.0.170.0030.00616.94
8.0.160.0030.00316.75
8.0.150.0040.00416.70
8.0.140.0000.00716.90
8.0.130.0050.00013.27
8.0.120.0060.00316.87
8.0.110.0000.00816.95
8.0.100.0000.00716.92
8.0.90.0070.00016.84
8.0.80.0030.01416.79
8.0.70.0050.00316.84
8.0.60.0000.00716.75
8.0.50.0070.00016.88
8.0.30.0090.01117.09
8.0.20.0140.00817.40
8.0.10.0070.00016.96
8.0.00.0080.01116.71
7.4.330.0050.00015.09
7.4.320.0000.00616.43
7.4.300.0060.00016.61
7.4.290.0070.00016.48
7.4.280.0040.00416.48
7.4.270.0030.00316.41
7.4.260.0000.00716.48
7.4.250.0040.00416.49
7.4.240.0030.00316.50
7.4.230.0070.00016.62
7.4.220.0040.01116.57
7.4.210.0060.01316.59
7.4.200.0030.00316.50
7.4.160.0090.00616.68
7.4.150.0090.00917.40
7.4.140.0120.00617.86
7.4.130.0060.01016.54
7.4.120.0090.00816.53
7.4.110.0120.00916.55
7.4.100.0170.00716.44
7.4.90.0030.01316.54
7.4.80.0120.00719.39
7.4.70.0070.01016.64
7.4.60.0090.01516.60
7.4.50.0070.00016.36
7.4.40.0130.00316.63
7.4.30.0090.00616.57
7.4.00.0060.00914.84
7.3.330.0030.00513.00
7.3.320.0000.00512.97
7.3.310.0000.00616.26
7.3.300.0030.00316.26
7.3.290.0090.00616.36
7.3.280.0060.01116.25
7.3.270.0110.00817.40
7.3.260.0150.00316.57
7.3.250.0150.00516.40
7.3.240.0080.00816.43
7.3.230.0040.01216.59
7.3.210.0150.00616.32
7.3.200.0000.01819.39
7.3.190.0060.01116.33
7.3.180.0040.01116.32
7.3.170.0100.00716.36
7.3.160.0070.00716.17
7.3.120.0000.01114.82
7.2.330.0090.00916.62
7.2.320.0120.00616.72
7.2.310.0090.00916.39
7.2.300.0100.00716.59
7.2.290.0060.01516.61
7.1.100.0070.00718.03
7.1.70.0060.00617.05
7.1.60.0140.01019.25
7.1.50.0090.01216.85
7.1.00.0030.07722.56
7.0.200.0040.00416.84
7.0.140.0070.07022.15
7.0.60.0070.04320.00
7.0.50.0100.08017.86
7.0.40.0100.08720.35
7.0.30.0370.06320.13
7.0.20.0270.08320.04
7.0.10.0070.04020.17
7.0.00.0030.09020.19
5.6.280.0030.07321.15
5.6.210.0030.08720.54
5.6.200.0030.05018.18
5.6.190.0100.05720.45
5.6.180.0430.04720.45
5.6.170.0230.04720.47
5.6.160.0100.08020.38
5.6.150.0100.08318.18
5.6.140.0070.07318.11
5.6.130.0000.04318.14
5.6.120.0070.08021.03
5.6.110.0170.06320.97
5.6.100.0170.07320.97
5.6.90.0070.08021.12
5.6.80.0100.07020.29
5.5.350.0170.04320.40
5.5.340.0100.07018.00
5.5.330.0070.04320.57
5.5.320.0230.06020.36
5.5.310.0170.04020.16
5.5.300.0170.06317.91
5.5.290.0100.08717.95
5.5.280.0130.07720.96
5.5.270.0030.06720.86
5.5.260.0100.06020.86
5.5.250.0000.08320.67
5.5.240.0030.08020.15
5.4.450.0170.05019.54
5.4.440.0770.05719.46
5.4.430.0530.05719.10
5.4.420.0570.05319.24
5.4.410.0130.05018.91
5.4.400.0270.05318.82
5.4.390.0470.06318.61
5.4.380.0300.04718.50
5.4.370.0000.04718.71
5.4.360.0030.04018.77
5.4.350.0080.06011.98
5.4.340.0070.04311.97
5.4.320.0100.03212.46
5.4.310.0050.04012.45
5.4.300.0030.04012.46
5.4.290.0040.04012.45
5.4.280.0040.03712.35
5.4.270.0060.03912.35
5.4.260.0060.03812.35
5.4.250.0050.04012.35
5.4.240.0030.03912.35
5.4.230.0080.03612.34
5.4.220.0060.03612.34
5.4.210.0050.03712.34
5.4.200.0050.03912.34
5.4.190.0050.03712.34
5.4.180.0090.03412.34
5.4.170.0050.03612.35
5.4.160.0060.03612.34
5.4.150.0060.03612.34
5.4.140.0070.04212.02
5.4.130.0060.03512.02
5.4.120.0070.03411.97
5.4.110.0050.03611.96
5.4.100.0050.03711.96
5.4.90.0040.03911.97
5.4.80.0050.03711.97
5.4.70.0110.02911.96
5.4.60.0040.03611.96
5.4.50.0090.04411.96
5.4.40.0040.03711.95
5.4.30.0050.03611.95
5.4.20.0070.03411.95
5.4.10.0040.03711.95
5.4.00.0070.03411.44
5.3.290.0060.03912.80
5.3.280.0090.04012.71
5.3.270.0050.04112.73
5.3.260.0060.04012.72
5.3.250.0040.04012.72
5.3.240.0060.03812.72
5.3.230.0060.03712.71
5.3.220.0070.03612.68
5.3.210.0060.03912.68
5.3.200.0050.03812.68
5.3.190.0080.03612.68
5.3.180.0050.03912.67
5.3.170.0050.03812.67
5.3.160.0080.03512.67
5.3.150.0060.03712.68
5.3.140.0050.03712.66
5.3.130.0090.03512.66
5.3.120.0090.03512.66
5.3.110.0070.03712.66
5.3.100.0050.03812.12
5.3.90.0040.03812.09
5.3.80.0100.03212.07
5.3.70.0050.04212.07
5.3.60.0050.03912.07
5.3.50.0050.03812.00
5.3.40.0070.03712.00
5.3.30.0050.03711.95
5.3.20.0050.03711.73
5.3.10.0080.03211.70
5.3.00.0070.03511.68
5.2.170.0040.0309.18
5.2.160.0070.0269.18
5.2.150.0060.0309.18
5.2.140.0030.0339.18
5.2.130.0040.0299.14
5.2.120.0040.0299.14
5.2.110.0030.0319.15
5.2.100.0040.0299.14
5.2.90.0050.0299.14
5.2.80.0040.0309.14
5.2.70.0040.0319.14
5.2.60.0040.0319.09
5.2.50.0060.0299.05
5.2.40.0040.0309.04
5.2.30.0050.0299.02
5.2.20.0060.0279.00
5.2.10.0050.0288.92
5.2.00.0030.0318.79
5.1.60.0050.0238.07
5.1.50.0070.0248.06
5.1.40.0070.0298.05
5.1.30.0070.0238.40
5.1.20.0040.0278.41
5.1.10.0030.0288.14
5.1.00.0050.0298.14
5.0.50.0040.0206.62
5.0.40.0010.0226.48
5.0.30.0030.0326.29
5.0.20.0040.0196.27
5.0.10.0060.0176.23
5.0.00.0030.0316.23
4.4.90.0030.0154.78
4.4.80.0020.0164.75
4.4.70.0030.0154.75
4.4.60.0020.0174.75
4.4.50.0030.0154.77
4.4.40.0010.0274.71
4.4.30.0020.0174.76
4.4.20.0060.0194.84
4.4.10.0040.0154.85
4.4.00.0020.0264.76
4.3.110.0030.0154.67
4.3.100.0020.0154.66
4.3.90.0040.0144.63
4.3.80.0030.0254.59
4.3.70.0030.0144.63
4.3.60.0030.0144.63
4.3.50.0060.0134.63
4.3.40.0000.0274.54
4.3.30.0040.0143.29
4.3.20.0020.0173.26
4.3.10.0020.0163.22
4.3.00.0030.0207.02

preferences:
49.26 ms | 401 KiB | 5 Q