3v4l.org

run code in 300+ PHP versions simultaneously
<?php class C { private $x = 'x'; function __get($key) {return $this->x;} function __isset($key) {return TRUE;} } $c = new C; print_r(empty($c->__get('k')));

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)
8.3.40.0040.01118.77
8.3.30.0120.00319.09
8.3.20.0000.00720.13
8.3.10.0050.00321.60
8.3.00.0080.00019.13
8.2.170.0070.00722.96
8.2.160.0000.01320.35
8.2.150.0150.00424.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0040.00422.05
8.2.110.0000.00922.12
8.2.100.0090.00317.50
8.2.90.0000.00819.06
8.2.80.0000.00917.97
8.2.70.0040.00417.50
8.2.60.0080.00018.04
8.2.50.0040.00418.07
8.2.40.0000.00819.95
8.2.30.0040.00418.09
8.2.20.0040.00417.61
8.2.10.0050.00217.94
8.2.00.0040.00417.70
8.1.270.0070.01122.05
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0090.00023.80
8.1.230.0080.00319.12
8.1.220.0040.00417.74
8.1.210.0050.00318.77
8.1.200.0060.00317.25
8.1.190.0040.00417.22
8.1.180.0000.00918.10
8.1.170.0030.00618.65
8.1.160.0050.00222.00
8.1.150.0000.00718.77
8.1.140.0040.00417.46
8.1.130.0000.00717.74
8.1.120.0030.00317.34
8.1.110.0000.00717.43
8.1.100.0030.00617.35
8.1.90.0000.00817.44
8.1.80.0000.00717.47
8.1.70.0080.00017.41
8.1.60.0060.00317.48
8.1.50.0030.00517.47
8.1.40.0040.00417.48
8.1.30.0030.00517.49
8.1.20.0000.00717.64
8.1.10.0060.00317.50
8.1.00.0050.00317.37
8.0.300.0040.00418.77
8.0.290.0060.00316.75
8.0.280.0000.00818.43
8.0.270.0030.00317.13
8.0.260.0060.00017.25
8.0.250.0030.00316.96
8.0.240.0060.00316.95
8.0.230.0030.00316.92
8.0.220.0040.00416.93
8.0.210.0030.00316.87
8.0.200.0070.00016.95
8.0.190.0080.00016.86
8.0.180.0000.00716.80
8.0.170.0040.00416.96
8.0.160.0060.00316.79
8.0.150.0070.00316.71
8.0.140.0000.00716.83
8.0.130.0030.00313.19
8.0.120.0040.00416.91
8.0.110.0000.00816.87
8.0.100.0000.00716.82
8.0.90.0020.00516.79
8.0.80.0090.01216.83
8.0.70.0000.00816.70
8.0.60.0040.00416.84
8.0.50.0070.00016.78
8.0.30.0100.01117.06
8.0.20.0110.00917.40
8.0.10.0080.00016.79
8.0.00.0090.01316.83
7.4.330.0050.00015.00
7.4.320.0000.00616.59
7.4.300.0000.00716.40
7.4.290.0030.00616.55
7.4.280.0050.00216.58
7.4.270.0000.00616.49
7.4.260.0030.00316.50
7.4.250.0040.00416.56
7.4.240.0020.00516.54
7.4.230.0070.00016.49
7.4.220.0060.01216.68
7.4.210.0070.00716.38
7.4.200.0070.00016.41
7.4.160.0140.00916.64
7.4.150.0000.02117.40
7.4.140.0120.00717.86
7.4.130.0080.01616.56
7.4.120.0050.01216.61
7.4.110.0150.00616.58
7.4.100.0110.00716.39
7.4.90.0100.00716.45
7.4.80.0070.01119.39
7.4.70.0150.00716.53
7.4.60.0080.00816.40
7.4.50.0030.00316.28
7.4.40.0100.00716.50
7.4.30.0080.00816.48
7.4.00.0130.00315.01
7.3.330.0000.00513.05
7.3.320.0000.00713.03
7.3.310.0000.00716.20
7.3.300.0000.00716.28
7.3.290.0130.00316.27
7.3.280.0090.00716.24
7.3.270.0070.01817.40
7.3.260.0080.00916.24
7.3.250.0090.00716.34
7.3.240.0090.00916.40
7.3.230.0110.01116.42
7.3.210.0100.01316.14
7.3.200.0160.00619.39
7.3.190.0080.00916.41
7.3.180.0060.00916.18
7.3.170.0080.00816.27
7.3.160.0080.01216.20
7.2.330.0130.00616.39
7.2.320.0140.00716.38
7.2.310.0130.00616.54
7.2.300.0130.00416.42
7.2.290.0070.01116.48
7.2.00.0060.00919.65
7.1.100.0040.00718.19
7.1.70.0100.00616.80
7.1.60.0100.00619.32
7.1.50.0160.01016.89
7.1.00.0000.08022.45
7.0.200.0070.00316.40
7.0.140.0030.07321.95
7.0.60.0100.07719.93
7.0.50.0100.08017.89
7.0.40.0170.04320.18
7.0.30.0330.07020.33
7.0.20.0230.07020.12
7.0.10.0000.04720.15
7.0.00.0070.08020.18
5.6.280.0000.07320.79
5.6.210.0130.07320.49
5.6.200.0070.05318.19
5.6.190.0100.03720.68
5.6.180.0270.05020.34
5.6.170.0330.07020.44
5.6.160.0130.07720.55
5.6.150.0030.04718.28
5.6.140.0030.06318.12
5.6.130.0070.03718.16
5.6.120.0070.08020.89
5.6.110.0100.08321.02
5.6.100.0030.06720.99
5.6.90.0130.07721.10
5.6.80.0200.07020.43
5.5.350.0070.06020.41
5.5.340.0030.03717.95
5.5.330.0100.07020.47
5.5.320.0300.05320.24
5.5.310.0400.06320.27
5.5.300.0030.06717.97
5.5.290.0030.08317.94
5.5.280.0100.04020.78
5.5.270.0030.09020.76
5.5.260.0070.08320.80
5.5.250.0130.08020.58
5.5.240.0270.06020.27
5.4.450.0870.05719.71
5.4.440.0930.05019.70
5.4.430.1030.04319.72
5.4.420.0670.00019.51
5.4.410.0630.00019.42
5.4.400.0700.00019.39
5.4.390.0600.00019.04
5.4.380.0670.00019.04
5.4.370.0600.00019.26
5.4.360.0600.00019.12
5.4.350.0630.00019.11
5.4.340.0070.03312.03
5.4.320.0070.03512.52
5.4.310.0050.03912.52
5.4.300.0050.03712.51
5.4.290.0090.03512.51
5.4.280.0040.03712.41
5.4.270.0060.03512.41
5.4.260.0050.03912.41
5.4.250.0040.03812.41
5.4.240.0060.03412.41
5.4.230.0040.03812.40
5.4.220.0100.03312.40
5.4.210.0040.03712.40
5.4.200.0070.03612.40
5.4.190.0060.03612.40
5.4.180.0030.03712.39
5.4.170.0060.03512.41
5.4.160.0080.03312.40
5.4.150.0050.03712.40
5.4.140.0060.03712.08
5.4.130.0060.03612.07
5.4.120.0070.03412.03
5.4.110.0050.04612.02
5.4.100.0060.03612.02
5.4.90.0100.04712.02
5.4.80.0080.03512.03
5.4.70.0030.04412.02
5.4.60.0060.03712.02
5.4.50.0070.03412.02
5.4.40.0070.03412.01
5.4.30.0040.03712.01
5.4.20.0090.03212.01
5.4.10.0030.03612.00
5.4.00.0050.03611.50
5.3.290.0050.04412.80
5.3.280.0070.03612.71
5.3.270.0050.04012.72
5.3.260.0060.04712.72
5.3.250.0040.03912.72
5.3.240.0090.03912.72
5.3.230.0100.04412.71
5.3.220.0050.03812.68
5.3.210.0050.04012.68
5.3.200.0080.03412.68
5.3.190.0090.03412.68
5.3.180.0040.03812.67
5.3.170.0090.03212.66
5.3.160.0070.03512.67
5.3.150.0050.03712.67
5.3.140.0080.03412.66
5.3.130.0040.04212.65
5.3.120.0050.04012.66
5.3.110.0110.03312.66
5.3.100.0080.03412.12
5.3.90.0080.04412.10
5.3.80.0100.03912.09
5.3.70.0070.04312.09
5.3.60.0040.04112.08
5.3.50.0110.03612.03
5.3.40.0060.04212.03
5.3.30.0080.03311.99
5.3.20.0070.03311.77
5.3.10.0100.03011.73
5.3.00.0060.04211.72
5.2.170.0060.0289.23
5.2.160.0030.0419.23
5.2.150.0050.0389.22
5.2.140.0040.0309.22
5.2.130.0060.0279.18
5.2.120.0030.0309.18
5.2.110.0020.0329.19
5.2.100.0070.0269.19
5.2.90.0050.0289.19
5.2.80.0050.0309.18
5.2.70.0040.0309.18
5.2.60.0030.0319.13
5.2.50.0050.0289.10
5.2.40.0090.0299.07
5.2.30.0080.0479.05
5.2.20.0040.0399.04
5.2.10.0060.0318.95
5.2.00.0070.0428.82
5.1.60.0110.0208.09
5.1.50.0090.0278.09
5.1.40.0050.0248.07
5.1.30.0070.0318.42
5.1.20.0050.0268.44
5.1.10.0050.0248.17
5.1.00.0030.0268.17
5.0.50.0050.0306.65
5.0.40.0040.0216.50
5.0.30.0050.0286.32
5.0.20.0030.0206.29
5.0.10.0030.0206.26
5.0.00.0040.0416.25
4.4.90.0020.0224.78
4.4.80.0060.0224.75
4.4.70.0040.0204.75
4.4.60.0030.0154.75
4.4.50.0030.0214.77
4.4.40.0040.0234.70
4.4.30.0030.0164.76
4.4.20.0060.0204.84
4.4.10.0030.0144.85
4.4.00.0050.0304.75
4.3.110.0040.0214.67
4.3.100.0030.0144.66
4.3.90.0030.0134.63
4.3.80.0050.0274.58
4.3.70.0050.0274.63
4.3.60.0040.0184.63
4.3.50.0010.0164.63
4.3.40.0010.0354.54
4.3.30.0030.0143.30
4.3.20.0020.0153.28
4.3.10.0010.0163.24
4.3.00.0070.0237.20

preferences:
40.4 ms | 400 KiB | 5 Q