3v4l.org

run code in 300+ PHP versions simultaneously
<?php error_reporting(E_ALL); $var = new StdClass(); $var->foo = 'bar'; //$this = $var; // PHP Fatal error: Cannot re-assign $this $GLOBALS['this'] = $var; var_dump($this); $var->foo = 'baz'; $foo = 'this'; $$foo = $var; var_dump($this); foo($this); function foo($this){ var_dump($this); $GLOBALS['this']->foo = 'baw'; $$GLOBALS['foo'] = $GLOBALS['this']; var_dump($this); }

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)
8.3.60.0090.00618.68
8.3.50.0110.00721.07
8.3.40.0140.00318.67
8.3.30.0060.00918.74
8.3.20.0070.00020.27
8.3.10.0040.00421.91
8.3.00.0050.00220.29
8.2.180.0040.01218.18
8.2.170.0110.00422.96
8.2.160.0120.00620.37
8.2.150.0040.00424.18
8.2.140.0000.00724.66
8.2.130.0030.00526.16
8.2.120.0060.00319.36
8.2.110.0080.00319.07
8.2.100.0040.00717.78
8.2.90.0050.00317.84
8.2.80.0000.00817.97
8.2.70.0040.00417.25
8.2.60.0040.00417.80
8.2.50.0030.00618.07
8.2.40.0000.00819.38
8.2.30.0000.00920.50
8.2.20.0080.00017.47
8.2.10.0040.00417.80
8.2.00.0070.00317.93
8.1.280.0050.01025.92
8.1.270.0090.00923.82
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0060.00322.53
8.1.230.0000.01020.97
8.1.220.0040.00417.74
8.1.210.0030.00518.96
8.1.200.0030.00617.23
8.1.190.0000.00817.10
8.1.180.0040.00418.10
8.1.170.0040.00418.49
8.1.160.0030.00321.96
8.1.150.0000.00818.76
8.1.140.0060.00317.38
8.1.130.0050.00217.49
8.1.120.0070.00017.37
8.1.110.0040.00417.32
8.1.100.0040.00417.36
8.1.90.0070.00017.22
8.1.80.0000.00817.27
8.1.70.0000.00617.24
8.1.60.0000.00817.44
8.1.50.0030.00517.36
8.1.40.0020.00517.41
8.1.30.0030.00517.55
8.1.20.0050.00217.52
8.1.10.0040.00417.44
8.1.00.0040.00417.34
8.0.300.0070.00019.81
8.0.290.0040.00416.63
8.0.280.0030.00318.31
8.0.270.0030.00317.14
8.0.260.0030.00317.12
8.0.250.0070.00016.88
8.0.240.0000.00916.78
8.0.230.0000.00716.77
8.0.220.0030.00316.86
8.0.210.0070.00016.78
8.0.200.0070.00016.81
8.0.190.0070.00416.88
8.0.180.0040.00416.77
8.0.170.0000.00816.82
8.0.160.0040.00416.73
8.0.150.0030.00516.70
8.0.140.0040.00416.69
8.0.130.0030.00313.26
8.0.120.0080.00016.84
8.0.110.0000.00816.81
8.0.100.0000.00716.88
8.0.90.0050.00316.78
8.0.80.0060.00916.71
8.0.70.0040.00416.67
8.0.60.0040.00416.86
8.0.50.0040.00416.65
8.0.30.0100.00816.92
8.0.20.0090.00917.40
8.0.10.0080.00016.86
8.0.00.0120.00516.66
7.4.330.0000.00515.08
7.4.320.0060.00016.31
7.4.300.0030.00316.27
7.4.290.0030.00316.42
7.4.280.0030.00716.45
7.4.270.0000.00616.49
7.4.260.0000.00716.43
7.4.250.0030.00516.43
7.4.240.0050.00216.41
7.4.230.0030.00316.28
7.4.220.0060.01316.41
7.4.210.0030.01716.42
7.4.200.0000.00716.28
7.4.160.0080.00816.32
7.4.150.0180.00617.40
7.4.140.0130.00817.86
7.4.130.0090.01116.30
7.4.120.0080.01016.37
7.4.110.0150.00416.24
7.4.100.0110.01116.48
7.4.90.0130.00316.36
7.4.80.0170.00319.39
7.4.70.0090.00616.21
7.4.60.0100.00716.51
7.4.50.0000.00916.32
7.4.40.0100.00716.38
7.4.30.0170.01016.30
7.4.00.0070.01014.90
7.3.330.0000.00513.10
7.3.320.0050.00013.06
7.3.310.0070.00016.24
7.3.300.0040.00416.24
7.3.290.0060.00816.19
7.3.280.0090.00816.19
7.3.270.0060.01217.40
7.3.260.0110.01116.45
7.3.250.0070.01016.31
7.3.240.0090.00916.35
7.3.230.0130.00316.39
7.3.210.0030.01316.41
7.3.200.0060.00916.29
7.3.190.0090.00616.20
7.3.180.0110.00416.30
7.3.170.0070.01016.27
7.3.160.0100.00616.23
7.2.330.0100.00716.58
7.2.320.0150.00616.50
7.2.310.0030.01816.32
7.2.300.0110.00616.58
7.2.290.0070.01016.28
7.2.60.0030.00916.62
7.2.00.0100.00319.30
7.1.200.0030.00715.73
7.1.100.0070.00718.02
7.1.70.0030.00617.09
7.1.60.0100.01319.14
7.1.50.0040.00816.83
7.1.00.0030.07722.42
7.0.200.0030.00616.79
7.0.60.0130.06020.04
7.0.50.0000.05017.84
7.0.40.0130.05320.04
7.0.30.0470.07320.10
7.0.20.0370.07320.06
7.0.10.0000.05020.15
7.0.00.0000.06020.07
5.6.280.0030.03021.13
5.6.210.0070.08320.53
5.6.200.0070.07018.18
5.6.190.0030.06320.58
5.6.180.0330.07320.61
5.6.170.0300.07720.53
5.6.160.0030.04320.50
5.6.150.0070.07318.17
5.6.140.0030.04018.18
5.6.130.0070.08718.17
5.6.120.0070.06721.13
5.6.110.0070.09021.12
5.6.100.0130.08021.12
5.6.90.0100.08321.01
5.6.80.0100.04720.38
5.5.350.0100.07020.41
5.5.340.0070.08017.99
5.5.330.0230.07020.39
5.5.320.3870.04720.35
5.5.310.0200.04320.51
5.5.300.0070.04317.96
5.5.290.0130.06317.97
5.5.280.0030.04320.73
5.5.270.0030.06320.75
5.5.260.0070.06720.88
5.5.250.0070.03720.58
5.5.240.0070.03320.15
5.4.450.0700.06019.41
5.4.440.0700.06019.25
5.4.430.0770.06319.15
5.4.420.1100.03719.39
5.4.410.0870.06319.46
5.4.400.1070.06019.05
5.4.390.0730.05719.32
5.4.380.0830.05319.00
5.4.370.0770.06019.25
5.4.360.0770.05719.31
5.4.350.0970.04018.83
5.4.340.0770.07019.05
5.4.320.0800.05718.91
5.4.310.0970.05019.21
5.4.300.0700.05319.19
5.4.290.0700.06719.26
5.4.280.0770.05719.08
5.4.270.0700.05719.26
5.4.260.1070.04319.24
5.4.250.0800.06319.08
5.4.240.0670.05719.00
5.4.230.0700.05719.30
5.4.220.0900.07018.86
5.4.210.0770.06019.09
5.4.200.0800.05019.07
5.4.190.0870.05019.24
5.4.180.0930.06018.99
5.4.170.0800.06319.16
5.4.160.0700.05319.04
5.4.150.0730.06019.18
5.4.140.0730.06016.66
5.4.130.0870.04016.36
5.4.120.0800.06016.34
5.4.110.0730.05316.57
5.4.100.0800.04716.59
5.4.90.0830.04716.45
5.4.80.0830.04016.55
5.4.70.0230.03316.52
5.4.60.0070.07016.48
5.4.50.0000.07716.33
5.4.40.0200.04016.32
5.4.30.0200.03316.42
5.4.20.0200.04016.53

preferences:
57.4 ms | 401 KiB | 5 Q