3v4l.org

run code in 300+ PHP versions simultaneously
<?php class weird { var $myvar; var $other; var $blee; var $bla; function __construct() { $myvar = 'other'; ${'myvar'} = 'blee'; ${'$myvar'} = 'bla'; $this->myvar = "A"; $this->$myvar = "B"; $this->${'myvar'} = "C"; $this->${'$myvar'} = "D"; echo 'this->myvar: '.$this->myvar."\n"; echo 'this->$myvar: '.$this->$myvar."\n"; echo 'this->${\'myvar\'}: '.$this->${'myvar'}."\n"; echo 'this->${\'$myvar\'}: '.$this->${'$myvar'}."\n"; echo 'this->$$$$$$$myvar: '.$this->$$$$$$$myvar."\n"; echo 'this->$$$$$$${\'$$$myvar\'}: ' . $this->$$$$$$${'$$$myvar'}."\n"; } } $obj = new weird; ?>

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)
8.3.60.0120.00316.50
8.3.50.0100.01016.39
8.3.40.0070.01018.71
8.3.30.0140.00018.68
8.3.20.0040.00420.21
8.3.10.0040.00421.71
8.3.00.0040.00423.65
8.2.180.0080.00816.63
8.2.170.0070.00722.96
8.2.160.0140.00020.35
8.2.150.0030.00624.18
8.2.140.0040.00424.66
8.2.130.0040.00419.76
8.2.120.0000.00826.35
8.2.110.0030.00621.06
8.2.100.0090.00317.70
8.2.90.0030.00717.75
8.2.80.0000.00817.97
8.2.70.0000.00818.04
8.2.60.0050.00317.80
8.2.50.0050.00318.10
8.2.40.0060.00320.46
8.2.30.0000.00819.49
8.2.20.0040.00417.65
8.2.10.0040.00418.11
8.2.00.0080.00018.02
8.1.280.0040.01125.92
8.1.270.0090.00923.92
8.1.260.0070.00328.09
8.1.250.0040.00428.09
8.1.240.0030.00622.10
8.1.230.0060.00618.97
8.1.220.0040.00417.74
8.1.210.0090.00018.77
8.1.200.0030.00617.48
8.1.190.0000.00817.22
8.1.180.0040.00418.10
8.1.170.0000.00818.53
8.1.160.0040.00420.75
8.1.150.0040.00418.77
8.1.140.0000.00919.48
8.1.130.0000.00717.68
8.1.120.0070.00017.32
8.1.110.0000.00817.42
8.1.100.0000.00817.47
8.1.90.0040.00417.35
8.1.80.0040.00417.41
8.1.70.0000.00717.45
8.1.60.0000.00717.50
8.1.50.0080.00017.54
8.1.40.0000.00817.58
8.1.30.0040.00417.54
8.1.20.0000.00917.51
8.1.10.0000.00717.58
8.1.00.0000.00817.37
8.0.300.0000.00719.64
8.0.290.0080.00016.75
8.0.280.0080.00018.41
8.0.270.0030.00317.26
8.0.260.0030.00317.16
8.0.250.0000.00817.03
8.0.240.0040.00416.89
8.0.230.0000.00716.91
8.0.220.0070.00016.96
8.0.210.0070.00016.84
8.0.200.0060.00017.05
8.0.190.0030.00516.91
8.0.180.0000.00717.02
8.0.170.0030.00616.98
8.0.160.0070.00016.95
8.0.150.0070.00016.94
8.0.140.0000.00716.82
8.0.130.0030.00313.34
8.0.120.0050.00316.89
8.0.110.0040.00416.81
8.0.100.0000.00816.82
8.0.90.0070.00016.80
8.0.80.0120.00316.91
8.0.70.0000.00716.90
8.0.60.0040.00416.78
8.0.50.0040.00416.75
8.0.30.0080.01116.94
8.0.20.0090.00917.42
8.0.10.0040.00416.98
8.0.00.0090.00716.76
7.4.330.0060.00016.69
7.4.320.0030.00316.50
7.4.300.0040.00416.64
7.4.290.0030.00316.61
7.4.280.0030.00616.64
7.4.270.0030.00316.49
7.4.260.0040.00416.61
7.4.250.0070.00016.43
7.4.240.0000.00716.55
7.4.230.0040.00416.48
7.4.220.0120.00916.50
7.4.210.0000.01416.63
7.4.200.0040.00416.49
7.4.160.0080.00816.43
7.4.150.0160.00617.40
7.4.140.0130.01017.86
7.4.130.0080.01216.70
7.4.120.0080.01216.62
7.4.110.0070.01116.57
7.4.100.0120.01016.73
7.4.90.0090.01016.57
7.4.80.0060.01119.39
7.4.70.0080.00916.56
7.4.60.0070.01016.55
7.4.50.0070.00716.30
7.4.40.0070.01016.47
7.4.30.0160.00616.70
7.4.00.0080.00815.03
7.3.330.0060.00013.43
7.3.320.0060.00013.41
7.3.310.0030.00416.31
7.3.300.0030.00316.33
7.3.290.0100.00716.42
7.3.280.0070.00916.39
7.3.270.0090.00917.40
7.3.260.0140.00316.38
7.3.250.0110.00616.46
7.3.240.0140.00716.48
7.3.230.0050.01316.39
7.3.210.0100.01316.53
7.3.200.0060.01619.39
7.3.190.0120.01216.43
7.3.180.0130.00416.35
7.3.170.0130.00316.48
7.3.160.0060.01416.39
7.3.120.0080.00814.89
7.3.110.0050.01014.90
7.3.100.0070.00514.80
7.3.90.0040.01114.83
7.3.80.0030.01015.01
7.3.70.0100.00514.85
7.3.60.0060.00714.71
7.3.50.0100.00514.94
7.3.40.0000.01514.69
7.3.30.0080.00814.82
7.3.20.0050.01016.77
7.3.10.0060.00716.76
7.3.00.0060.00916.72
7.2.330.0130.00516.71
7.2.320.0070.01016.87
7.2.310.0060.01616.71
7.2.300.0140.00516.66
7.2.290.0100.00716.68
7.2.250.0030.01715.31
7.2.240.0060.01115.01
7.2.230.0040.00915.04
7.2.220.0040.00914.97
7.2.210.0130.00315.00
7.2.200.0050.01115.04
7.2.190.0070.00515.08
7.2.180.0090.00714.87
7.2.170.0070.00514.96
7.2.160.0060.01114.88
7.2.150.0030.01316.85
7.2.140.0070.01016.70
7.2.130.0060.00916.68
7.2.120.0070.01116.84
7.2.110.0140.00417.04
7.2.100.0070.01117.11
7.2.90.0060.00616.98
7.2.80.0030.01416.94
7.2.70.0060.01017.03
7.2.60.0060.00716.90
7.2.50.0070.01116.99
7.2.40.0070.00416.89
7.2.30.0070.01017.11
7.2.20.0100.00717.00
7.2.10.0060.00617.10
7.2.00.0030.01318.22
7.1.330.0070.00715.79
7.1.320.0030.01115.86
7.1.310.0030.01015.76
7.1.300.0030.01215.59
7.1.290.0020.01415.63
7.1.280.0070.00615.80
7.1.270.0050.00515.83
7.1.260.0070.00615.78
7.1.250.0090.00615.87
7.1.200.0090.00615.64
7.1.100.0150.00318.08
7.1.70.0040.01117.30
7.1.60.0060.00919.27
7.1.50.0030.01617.14
7.1.00.0030.07322.28
7.0.200.0030.00616.73
7.0.60.0270.02719.80
7.0.50.0130.04317.86
7.0.40.0000.04720.30
7.0.30.0300.07720.27
7.0.20.0430.07320.09
7.0.10.0100.08720.06
7.0.00.0030.09320.30
5.6.280.0030.03320.87
5.6.210.0070.04720.66
5.6.200.0170.06718.14
5.6.190.0130.03720.48
5.6.180.0200.05020.52
5.6.170.0230.03720.48
5.6.160.0000.04320.39
5.6.150.0100.06018.20
5.6.140.0030.04718.22
5.6.130.0070.08718.14
5.6.120.0070.04021.14
5.6.110.0070.08721.14
5.6.100.0030.06021.11
5.6.90.0070.04721.04
5.6.80.0070.03320.41
5.5.350.0070.06020.38
5.5.340.0070.08017.97
5.5.330.0070.08020.29
5.5.320.0600.05720.27
5.5.310.0330.04320.37
5.5.300.0000.04717.96
5.5.290.0000.05018.07
5.5.280.0100.08020.99
5.5.270.0100.07320.85
5.5.260.0030.05020.98
5.5.250.0070.09320.63
5.5.240.0100.06720.36

preferences:
61.79 ms | 401 KiB | 5 Q