3v4l.org

run code in 300+ PHP versions simultaneously
<?php class foo { function __construct() { $this->a = "hello"; $this->b = "hi"; $this->val = "howdy"; $vae = "a"; echo $this->$vae; // outputs "hello" echo "\n"; $val = "b"; echo $this->{$val}; // outputs "hi" echo "\n"; echo $this->val; //outputs "howdy" echo "\n"; echo $this->{"val"}; } } $foo = new foo();

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)
8.3.60.0090.00916.61
8.3.50.0070.00922.90
8.3.40.0070.01118.64
8.3.30.0170.00319.07
8.3.20.0040.00420.28
8.3.10.0050.00323.70
8.3.00.0060.00319.51
8.2.180.0110.00416.63
8.2.170.0000.01422.96
8.2.160.0030.01020.52
8.2.150.0080.00024.18
8.2.140.0070.00024.66
8.2.130.0040.00426.16
8.2.120.0000.00719.77
8.2.110.0060.00322.20
8.2.100.0000.01417.84
8.2.90.0050.00319.01
8.2.80.0000.00917.97
8.2.70.0080.00017.50
8.2.60.0030.00517.80
8.2.50.0080.00018.07
8.2.40.0070.00018.22
8.2.30.0040.00418.05
8.2.20.0000.00817.56
8.2.10.0050.00318.18
8.2.00.0000.00717.68
8.1.280.0130.00725.92
8.1.270.0000.00924.01
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0060.00323.85
8.1.230.0120.00019.12
8.1.220.0060.00317.78
8.1.210.0000.00818.77
8.1.200.0030.00617.23
8.1.190.0040.00417.35
8.1.180.0060.00318.10
8.1.170.0080.00018.67
8.1.160.0050.00221.92
8.1.150.0040.00418.73
8.1.140.0040.00417.50
8.1.130.0030.00317.93
8.1.120.0000.00717.38
8.1.110.0000.00917.37
8.1.100.0000.00717.48
8.1.90.0040.00417.43
8.1.80.0030.00317.36
8.1.70.0000.00717.32
8.1.60.0050.00317.62
8.1.50.0050.00317.55
8.1.40.0050.00317.47
8.1.30.0040.00417.57
8.1.20.0030.00517.61
8.1.10.0050.00317.55
8.1.00.0060.00317.54
8.0.300.0080.00018.77
8.0.290.0000.00816.75
8.0.280.0070.00018.46
8.0.270.0000.00817.20
8.0.260.0030.00317.30
8.0.250.0070.00016.82
8.0.240.0040.00416.92
8.0.230.0040.00416.94
8.0.220.0030.00316.89
8.0.210.0070.00016.93
8.0.200.0000.00716.97
8.0.190.0000.00816.96
8.0.180.0070.00316.91
8.0.170.0000.00816.91
8.0.160.0070.00016.96
8.0.150.0070.00016.82
8.0.140.0040.00416.77
8.0.130.0090.00013.39
8.0.120.0070.00016.85
8.0.110.0000.00716.90
8.0.100.0040.00416.71
8.0.90.0000.00816.78
8.0.80.0120.00916.90
8.0.70.0000.00816.95
8.0.60.0070.00016.96
8.0.50.0040.00416.88
8.0.30.0100.01217.12
8.0.20.0150.00717.40
8.0.10.0000.00717.05
8.0.00.0090.00816.76
7.4.330.0000.00515.00
7.4.320.0030.00316.39
7.4.300.0060.00016.57
7.4.290.0030.00316.58
7.4.280.0070.00016.46
7.4.270.0040.00416.55
7.4.260.0020.00516.39
7.4.250.0030.00516.58
7.4.240.0020.00516.57
7.4.230.0080.00016.50
7.4.220.0100.01016.50
7.4.210.0070.00716.54
7.4.200.0000.00716.64
7.4.160.0120.00316.73
7.4.150.0120.01217.40
7.4.140.0130.00417.86
7.4.130.0060.01016.61
7.4.120.0090.01016.48
7.4.110.0130.00316.35
7.4.100.0100.00716.46
7.4.90.0130.00316.32
7.4.80.0070.01119.39
7.4.70.0090.00616.44
7.4.60.0070.01016.49
7.4.50.0040.00416.35
7.4.40.0060.01016.39
7.4.30.0140.00716.31
7.4.00.0080.00814.87
7.3.330.0050.00013.38
7.3.320.0000.00613.31
7.3.310.0040.00416.40
7.3.300.0030.00316.38
7.3.290.0040.01516.38
7.3.280.0100.00916.31
7.3.270.0120.00917.40
7.3.260.0090.00916.53
7.3.250.0090.00916.49
7.3.240.0040.01216.36
7.3.230.0100.00816.68
7.3.210.0100.01416.49
7.3.200.0190.00319.39
7.3.190.0060.01016.65
7.3.180.0090.00616.38
7.3.170.0090.01316.59
7.3.160.0130.00316.29
7.2.330.0080.01216.48
7.2.320.0040.01216.79
7.2.310.0110.00616.80
7.2.300.0120.00616.85
7.2.290.0070.01016.59
7.2.00.0030.00919.54
7.1.100.0100.01018.17
7.1.70.0060.00617.27
7.1.60.0130.00919.40
7.1.50.0100.01416.85
7.1.00.0070.07022.54
7.0.200.0000.00716.59
7.0.140.0000.07721.97
7.0.60.0130.07319.96
7.0.50.0000.06017.85
7.0.40.0130.05020.30
7.0.30.0130.04720.09
7.0.20.0370.04020.26
7.0.10.0070.06720.15
7.0.00.0070.08020.09
5.6.280.0030.07321.06
5.6.210.0170.07320.67
5.6.200.0100.08018.23
5.6.190.0100.08720.61
5.6.180.0330.08020.55
5.6.170.0200.07320.44
5.6.160.0100.08320.71
5.6.150.0030.04018.15
5.6.140.0030.04018.24
5.6.130.0030.07318.18
5.6.120.0000.08720.99
5.6.110.0070.08021.14
5.6.100.0070.08720.99
5.6.90.0030.04721.00
5.6.80.0070.06320.54
5.5.350.0030.04320.41
5.5.340.0070.07018.01
5.5.330.0070.06320.38
5.5.320.0130.08320.30
5.5.310.0230.03720.29
5.5.300.0070.07017.96
5.5.290.0070.09017.99
5.5.280.0070.04020.65
5.5.270.0070.08020.84
5.5.260.0070.04320.86
5.5.250.0130.06720.59
5.5.240.0170.07720.26
5.4.450.0170.04019.55
5.4.440.0170.04719.29
5.4.430.0430.03719.40
5.4.420.0430.04319.48
5.4.410.0130.03719.43
5.4.400.0270.03319.13
5.4.390.0270.04719.09
5.4.380.1070.05318.77
5.4.370.0800.05718.47
5.4.360.1070.04718.75
5.4.350.0970.05718.77
5.4.340.0870.05718.55
5.4.320.0030.03912.50
5.4.310.0050.03912.50
5.4.300.0060.03712.50
5.4.290.0070.03712.50
5.4.280.0060.04312.39
5.4.270.0050.04412.40
5.4.260.0070.03912.39
5.4.250.0060.03812.39
5.4.240.0070.03512.39
5.4.230.0060.03712.39
5.4.220.0080.03312.39
5.4.210.0070.03412.38
5.4.200.0070.03612.39
5.4.190.0040.03812.38
5.4.180.0060.03512.38
5.4.170.0040.03812.39
5.4.160.0070.03512.39
5.4.150.0080.03312.39
5.4.140.0100.03312.07
5.4.130.0060.03612.06
5.4.120.0060.03612.02
5.4.110.0080.03412.01
5.4.100.0100.03112.02
5.4.90.0060.04212.02
5.4.80.0040.03912.01
5.4.70.0060.03512.01
5.4.60.0050.03512.01
5.4.50.0070.03312.01
5.4.40.0060.03411.99
5.4.30.0060.03612.00
5.4.20.0080.03311.99
5.4.10.0060.03311.99
5.4.00.0040.03711.48
5.3.290.0060.03912.80
5.3.280.0100.03412.71
5.3.270.0050.03912.72
5.3.260.0040.04012.72
5.3.250.0030.03912.72
5.3.240.0030.04112.71
5.3.230.0060.03712.71
5.3.220.0040.04412.68
5.3.210.0050.03912.68
5.3.200.0090.03312.68
5.3.190.0070.03612.68
5.3.180.0090.03312.68
5.3.170.0080.03412.67
5.3.160.0060.03612.68
5.3.150.0080.03512.67
5.3.140.0080.03512.66
5.3.130.0050.03912.66
5.3.120.0050.03912.66
5.3.110.0080.03812.66
5.3.100.0090.03312.12
5.3.90.0050.03712.10
5.3.80.0070.03412.09
5.3.70.0030.03912.09
5.3.60.0060.03612.07
5.3.50.0090.03312.02
5.3.40.0050.03712.02
5.3.30.0090.03211.98
5.3.20.0070.03411.76
5.3.10.0030.03811.73
5.3.00.0070.03511.71
5.2.170.0090.0269.22
5.2.160.0050.0319.22
5.2.150.0050.0359.22
5.2.140.0070.0339.21
5.2.130.0060.0279.18
5.2.120.0060.0279.18
5.2.110.0050.0299.18
5.2.100.0040.0299.18
5.2.90.0050.0289.18
5.2.80.0030.0319.17
5.2.70.0040.0319.17
5.2.60.0040.0329.13
5.2.50.0040.0309.10
5.2.40.0040.0359.07
5.2.30.0050.0289.04
5.2.20.0050.0309.03
5.2.10.0060.0378.94
5.2.00.0050.0298.80
5.1.60.0020.0278.09
5.1.50.0040.0258.08
5.1.40.0040.0248.06
5.1.30.0040.0288.41
5.1.20.0050.0258.43
5.1.10.0070.0228.16
5.1.00.0030.0268.16
5.0.50.0020.0226.64
5.0.40.0040.0186.50
5.0.30.0020.0366.31
5.0.20.0040.0186.27
5.0.10.0010.0226.25
5.0.00.0040.0306.25
4.4.90.0030.0154.78
4.4.80.0010.0174.75
4.4.70.0060.0124.75
4.4.60.0020.0164.75
4.4.50.0030.0154.77
4.4.40.0040.0234.71
4.4.30.0050.0134.76
4.4.20.0020.0164.85
4.4.10.0020.0164.85
4.4.00.0030.0244.76
4.3.110.0030.0164.67
4.3.100.0060.0144.66
4.3.90.0020.0154.63
4.3.80.0040.0234.58
4.3.70.0040.0134.63
4.3.60.0030.0144.63
4.3.50.0030.0154.62
4.3.40.0030.0294.53
4.3.30.0010.0163.30
4.3.20.0030.0153.28
4.3.10.0050.0133.24
4.3.00.0100.01316.03

preferences:
41.58 ms | 401 KiB | 5 Q