3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { private $p1 = "secret"; public function B() { var_dump($this); ${'t' . 'his'} = 'hidden'; // works var_dump($this); echo $this . ' ' . $this->p1; $GLOBALS['this'] = 'lovely'; echo $this . ' ' . $this->p1; } } $a = new A; $a->B();

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)
8.3.60.0040.01116.50
8.3.50.0130.00522.80
8.3.40.0040.01818.68
8.3.30.0140.00018.91
8.3.20.0040.00420.26
8.3.10.0040.00423.66
8.3.00.0080.00417.38
8.2.180.0060.00916.37
8.2.170.0110.00422.96
8.2.160.0030.01120.53
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0040.00420.86
8.2.110.0000.01019.39
8.2.100.0120.00017.66
8.2.90.0000.00819.02
8.2.80.0030.00517.97
8.2.70.0060.00317.38
8.2.60.0080.00517.79
8.2.50.0040.00418.07
8.2.40.0040.00418.22
8.2.30.0000.00717.85
8.2.20.0000.00717.61
8.2.10.0000.00817.91
8.2.00.0050.00217.53
8.1.280.0110.00425.92
8.1.270.0030.00623.96
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0030.00622.02
8.1.230.0000.01120.78
8.1.220.0000.00817.74
8.1.210.0000.00918.77
8.1.200.0030.00617.34
8.1.190.0000.00917.35
8.1.180.0080.00018.10
8.1.170.0030.00718.58
8.1.160.0070.00022.05
8.1.150.0040.00418.94
8.1.140.0050.00317.46
8.1.130.0030.00317.88
8.1.120.0000.00817.48
8.1.110.0070.00017.52
8.1.100.0000.00717.35
8.1.90.0030.00417.34
8.1.80.0000.00717.49
8.1.70.0070.00017.41
8.1.60.0080.00017.62
8.1.50.0040.00417.47
8.1.40.0040.00417.52
8.1.30.0040.00417.67
8.1.20.0000.00817.71
8.1.10.0000.00717.46
8.1.00.0000.00717.50
8.0.300.0030.00618.77
8.0.290.0040.00416.58
8.0.280.0030.00318.45
8.0.270.0070.00017.27
8.0.260.0070.00017.26
8.0.250.0040.00417.08
8.0.240.0000.00816.98
8.0.230.0030.00316.89
8.0.220.0040.00416.94
8.0.210.0000.00716.95
8.0.200.0000.00717.07
8.0.190.0060.00316.88
8.0.180.0040.00416.89
8.0.170.0040.00416.89
8.0.160.0040.00416.95
8.0.150.0000.00716.90
8.0.140.0000.00816.92
8.0.130.0050.00013.44
8.0.120.0040.00416.93
8.0.110.0040.00417.02
8.0.100.0020.00516.78
8.0.90.0070.00016.80
8.0.80.0120.00316.95
8.0.70.0040.00416.84
8.0.60.0000.00716.80
8.0.50.0040.00416.95
8.0.30.0130.00617.19
8.0.20.0110.00817.40
8.0.10.0040.00416.95
8.0.00.0060.01316.67
7.4.330.0050.00015.09
7.4.320.0060.00016.59
7.4.300.0030.00316.50
7.4.290.0040.00416.50
7.4.280.0050.00316.38
7.4.270.0000.00716.55
7.4.260.0000.00716.61
7.4.250.0040.00416.49
7.4.240.0020.00516.58
7.4.230.0030.00316.32
7.4.220.0090.00916.53
7.4.210.0030.01316.71
7.4.200.0030.00416.48
7.4.160.0050.01116.30
7.4.150.0110.00617.40
7.4.140.0050.01417.86
7.4.130.0080.00816.49
7.4.120.0030.01416.44
7.4.110.0150.00316.51
7.4.100.0130.00316.48
7.4.90.0120.00616.52
7.4.80.0060.01419.39
7.4.70.0080.01116.70
7.4.60.0120.00416.57
7.4.50.0000.00416.58
7.4.40.0070.01016.41
7.4.30.0120.00616.39
7.4.00.0100.00415.06
7.3.330.0030.00313.23
7.3.320.0000.00513.13
7.3.310.0000.00716.46
7.3.300.0080.00016.37
7.3.290.0110.00916.28
7.3.280.0080.00816.32
7.3.270.0130.00717.40
7.3.260.0120.00416.60
7.3.250.0120.00616.34
7.3.240.0160.00016.41
7.3.230.0060.01216.46
7.3.210.0130.00616.61
7.3.200.0070.01319.39
7.3.190.0130.00316.59
7.3.180.0060.01016.58
7.3.170.0120.00816.46
7.3.160.0060.00916.34
7.3.120.0030.01114.80
7.3.110.0140.00314.82
7.3.100.0100.00614.68
7.3.90.0040.01114.74
7.3.80.0030.01014.94
7.3.70.0110.00414.57
7.3.60.0030.00814.87
7.3.50.0000.01114.84
7.3.40.0100.00314.66
7.3.30.0030.01014.81
7.3.20.0050.00516.86
7.3.10.0110.00016.42
7.3.00.0040.00416.62
7.2.330.0110.00816.60
7.2.320.0100.01316.55
7.2.310.0060.01316.65
7.2.300.0030.01516.56
7.2.290.0160.00016.75
7.2.250.0040.01415.00
7.2.240.0000.01915.22
7.2.230.0040.01515.01
7.2.220.0000.01314.88
7.2.210.0060.00314.92
7.2.200.0030.01414.94
7.2.190.0060.00314.97
7.2.180.0090.00314.99
7.2.170.0100.00715.12
7.2.80.0120.00316.58
7.2.60.0000.01516.79
7.2.00.0060.00919.57
7.1.330.0040.01115.93
7.1.320.0100.00315.50
7.1.310.0000.01215.54
7.1.300.0060.00315.74
7.1.290.0090.00615.87
7.1.280.0030.00715.77
7.1.270.0000.01215.62
7.1.260.0080.00515.62
7.1.200.0040.00415.84
7.1.100.0090.00417.91
7.1.70.0060.00616.94
7.1.60.0110.01419.40
7.1.50.0060.01616.79
7.1.00.0030.07722.33
7.0.200.0030.00716.84
7.0.140.0030.07322.04
7.0.60.0000.04319.92
7.0.50.0070.04317.72
7.0.40.0070.04320.05
7.0.30.0270.04020.31
7.0.20.0230.05320.23
7.0.10.0100.08320.32
7.0.00.0270.07020.08
5.6.280.0030.06720.87
5.6.210.0170.07720.54
5.6.200.0100.05018.29
5.6.190.0070.04020.48
5.6.180.0400.08320.63
5.6.170.0300.04320.55
5.6.160.0070.05320.71
5.6.150.0100.06718.18
5.6.140.0070.03318.15
5.6.130.0100.07718.12
5.6.120.0000.05721.00
5.6.110.0100.03321.11
5.6.100.0000.06721.04
5.6.90.0000.09021.05
5.6.80.0070.06720.37
5.5.350.0270.07320.48
5.5.340.0100.04718.02
5.5.330.0130.07320.43
5.5.320.3130.03720.32
5.5.310.0300.06020.24
5.5.300.0070.08018.07
5.5.290.0030.05017.98
5.5.280.0070.04320.88
5.5.270.0070.04020.86
5.5.260.0030.05720.87
5.5.250.0070.03720.68
5.5.240.0030.07720.16
5.4.450.0200.06719.55
5.4.440.0930.04319.53
5.4.430.0130.05019.68
5.4.420.0100.05319.53
5.4.410.0100.06019.02
5.4.400.0230.04018.51
5.4.390.0230.06018.51
5.4.380.0870.05318.50
5.4.370.0100.05018.68
5.4.360.0030.06018.71
5.4.350.0140.05712.02
5.4.340.0080.04712.02
5.4.320.0070.03712.50
5.4.310.0060.05012.50
5.4.300.0070.03412.50
5.4.290.0050.03712.50
5.4.280.0130.03712.39
5.4.270.0090.04212.40
5.4.260.0070.03912.39
5.4.250.0060.03912.39
5.4.240.0060.03412.39
5.4.230.0080.04112.39
5.4.220.0050.03912.39
5.4.210.0090.04212.39
5.4.200.0040.03912.39
5.4.190.0080.04312.38
5.4.180.0120.03312.38
5.4.170.0110.03712.39
5.4.160.0070.03712.39
5.4.150.0040.03912.39
5.4.140.0050.03812.07
5.4.130.0050.03812.06
5.4.120.0050.03912.02
5.4.110.0040.03812.02
5.4.100.0060.03512.02
5.4.90.0050.03712.01
5.4.80.0070.03612.01
5.4.70.0090.03112.01
5.4.60.0060.03512.01
5.4.50.0060.03512.01
5.4.40.0090.03012.00
5.4.30.0050.03611.99
5.4.20.0050.03511.99
5.4.10.0040.03511.99
5.4.00.0090.03711.48
5.3.290.0080.04212.80
5.3.280.0050.04612.70
5.3.270.0090.04012.72
5.3.260.0060.04212.71
5.3.250.0120.03912.72
5.3.240.0050.04912.72
5.3.230.0080.04512.71
5.3.220.0050.03912.68
5.3.210.0060.03912.68
5.3.200.0040.03812.68
5.3.190.0100.04012.68
5.3.180.0050.04112.67
5.3.170.0080.03512.67
5.3.160.0080.04012.67
5.3.150.0050.03912.67
5.3.140.0110.04312.66
5.3.130.0060.04612.66
5.3.120.0050.04012.66
5.3.110.0070.04612.66
5.3.100.0110.04312.12
5.3.90.0060.04212.10
5.3.80.0040.04812.09
5.3.70.0080.04012.09
5.3.60.0070.04612.08
5.3.50.0100.03812.02
5.3.40.0060.04312.02
5.3.30.0070.03511.98
5.3.20.0060.04411.76
5.3.10.0050.04311.73
5.3.00.0040.03611.71
5.2.170.0070.0349.22
5.2.160.0030.0389.22
5.2.150.0020.0339.22
5.2.140.0050.0299.22
5.2.130.0060.0339.18
5.2.120.0050.0289.18
5.2.110.0060.0329.18
5.2.100.0070.0329.18
5.2.90.0060.0279.17
5.2.80.0050.0319.17
5.2.70.0050.0319.16
5.2.60.0090.0399.12
5.2.50.0080.0289.10
5.2.40.0060.0299.07
5.2.30.0060.0299.04
5.2.20.0040.0419.03
5.2.10.0040.0328.94
5.2.00.0060.0378.80
5.1.60.0060.0258.09
5.1.50.0040.0278.09
5.1.40.0080.0208.07
5.1.30.0050.0328.41
5.1.20.0060.0298.44
5.1.10.0040.0298.16
5.1.00.0030.0288.16
5.0.50.0020.0276.64
5.0.40.0020.0266.50
5.0.30.0030.0356.31
5.0.20.0040.0256.27
5.0.10.0030.0276.25
5.0.00.0030.0316.25
4.4.90.0030.0144.77
4.4.80.0040.0134.75
4.4.70.0020.0154.75
4.4.60.0040.0214.75
4.4.50.0030.0194.77
4.4.40.0040.0294.71
4.4.30.0040.0144.76
4.4.20.0020.0154.84
4.4.10.0020.0174.85
4.4.00.0040.0334.76
4.3.110.0040.0154.67
4.3.100.0030.0174.67
4.3.90.0050.0144.63
4.3.80.0040.0274.59
4.3.70.0050.0124.63
4.3.60.0050.0124.63
4.3.50.0040.0144.63
4.3.40.0020.0254.54
4.3.30.0020.0163.30
4.3.20.0030.0143.28
4.3.10.0050.0123.23
4.3.00.0030.0206.82

preferences:
36.34 ms | 401 KiB | 5 Q