3v4l.org

run code in 300+ PHP versions simultaneously
<?php class foo { function __construct() { $this->a = "hello"; $this->b = "hi"; $this->val = "howdy"; $val = "val"; echo $this->{$val}; // 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)
8.3.60.0140.00418.52
8.3.50.0070.01222.16
8.3.40.0090.00918.98
8.3.30.0110.00419.11
8.3.20.0040.00420.16
8.3.10.0070.00023.59
8.3.00.0090.00020.86
8.2.180.0040.01916.47
8.2.170.0090.00622.96
8.2.160.0070.00720.38
8.2.150.0050.00324.18
8.2.140.0070.00024.66
8.2.130.0130.00326.16
8.2.120.0040.00419.48
8.2.110.0070.01322.08
8.2.100.0070.00817.78
8.2.90.0030.00619.28
8.2.80.0000.00817.97
8.2.70.0060.00317.50
8.2.60.0040.00417.92
8.2.50.0060.00318.07
8.2.40.0030.00519.88
8.2.30.0070.00018.10
8.2.20.0050.00317.68
8.2.10.0050.00218.10
8.2.00.0000.00817.62
8.1.280.0040.01125.92
8.1.270.0080.00023.96
8.1.260.0070.00026.35
8.1.250.0060.00328.09
8.1.240.0040.00423.91
8.1.230.0080.00318.90
8.1.220.0060.00317.78
8.1.210.0060.00318.77
8.1.200.0060.00317.35
8.1.190.0040.00417.35
8.1.180.0040.00418.10
8.1.170.0060.00318.50
8.1.160.0000.00721.98
8.1.150.0050.00218.64
8.1.140.0000.00817.38
8.1.130.0000.00717.73
8.1.120.0000.00817.50
8.1.110.0080.00017.35
8.1.100.0000.00817.39
8.1.90.0040.00417.48
8.1.80.0040.00417.35
8.1.70.0070.00017.41
8.1.60.0030.00617.47
8.1.50.0000.00817.50
8.1.40.0040.00417.53
8.1.30.0080.00017.66
8.1.20.0030.00617.69
8.1.10.0040.00417.62
8.1.00.0000.00817.46
8.0.300.0070.00018.77
8.0.290.0000.00716.60
8.0.280.0030.00318.48
8.0.270.0000.00717.17
8.0.260.0000.00617.17
8.0.250.0000.00816.99
8.0.240.0050.00316.95
8.0.230.0040.00416.81
8.0.220.0030.00316.89
8.0.210.0070.00016.79
8.0.200.0000.00716.99
8.0.190.0050.00216.86
8.0.180.0050.00316.80
8.0.170.0000.00816.89
8.0.160.0000.00716.97
8.0.150.0000.00816.88
8.0.140.0000.01016.88
8.0.130.0000.00613.32
8.0.120.0040.00416.87
8.0.110.0040.00416.87
8.0.100.0040.00416.95
8.0.90.0030.00616.95
8.0.80.0090.00616.90
8.0.70.0000.00716.86
8.0.60.0040.00416.85
8.0.50.0040.00416.93
8.0.30.0080.01217.11
8.0.20.0070.01317.40
8.0.10.0040.00416.84
8.0.00.0080.00916.82
7.4.330.0050.00015.00
7.4.320.0040.00416.54
7.4.300.0040.00416.40
7.4.290.0030.00316.59
7.4.280.0040.00416.60
7.4.270.0030.00316.55
7.4.260.0030.00616.44
7.4.250.0000.00716.45
7.4.240.0040.00316.53
7.4.230.0000.00716.31
7.4.220.0140.00316.46
7.4.210.0040.01116.62
7.4.200.0070.00016.32
7.4.160.0080.00816.56
7.4.150.0060.01217.40
7.4.140.0120.00817.86
7.4.130.0110.00916.52
7.4.120.0080.00816.47
7.4.110.0120.02516.39
7.4.100.0080.01216.66
7.4.90.0100.00716.40
7.4.80.0100.01019.39
7.4.70.0060.01316.49
7.4.60.0060.00916.50
7.4.50.0030.00516.57
7.4.40.0160.00016.54
7.4.30.0130.00316.77
7.4.00.0050.01114.80
7.3.330.0020.00213.23
7.3.320.0030.00313.36
7.3.310.0000.00716.27
7.3.300.0000.00716.26
7.3.290.0090.00416.38
7.3.280.0090.00916.36
7.3.270.0120.00817.40
7.3.260.0120.01216.35
7.3.250.0080.01416.30
7.3.240.0100.01016.37
7.3.230.0130.00716.55
7.3.210.0070.01016.29
7.3.200.0080.00819.39
7.3.190.0100.01416.56
7.3.180.0030.01216.66
7.3.170.0220.00016.46
7.3.160.0100.00616.40
7.3.120.0000.01614.69
7.3.110.0130.00314.86
7.3.100.0070.01014.80
7.3.90.0130.00314.79
7.3.80.0070.00714.98
7.3.70.0050.00314.63
7.3.60.0060.00614.82
7.3.50.0060.00914.90
7.3.40.0030.01314.86
7.3.30.0060.00614.84
7.3.20.0040.01116.48
7.3.10.0080.00416.86
7.3.00.0000.01416.42
7.2.330.0030.01916.44
7.2.320.0030.02016.79
7.2.310.0130.01016.78
7.2.300.0130.01016.78
7.2.290.0140.00716.61
7.2.250.0040.01415.09
7.2.240.0060.01215.18
7.2.230.0030.01614.81
7.2.220.0030.01415.02
7.2.210.0100.00315.26
7.2.200.0030.01015.07
7.2.190.0110.00414.94
7.2.180.0040.01114.72
7.2.170.0000.00915.16
7.2.00.0030.01019.44
7.1.330.0030.01015.57
7.1.320.0060.00915.55
7.1.310.0140.00015.93
7.1.300.0060.00315.76
7.1.290.0030.01015.63
7.1.280.0070.00315.85
7.1.270.0050.00515.62
7.1.260.0070.00715.56
7.1.100.0150.00418.13
7.1.70.0040.00417.19
7.1.60.0070.01819.70
7.1.50.0150.00616.93
7.1.00.0030.07722.47
7.0.200.0000.00916.74
7.0.140.0070.07022.02
7.0.70.0070.08321.80
7.0.60.0070.07721.66
7.0.50.0100.08022.12
7.0.40.0000.08019.95
7.0.30.0030.06020.11
7.0.20.0030.05720.13
7.0.10.0070.05720.17
7.0.00.0070.07720.10
5.6.280.0030.07320.82
5.6.220.0000.08320.62
5.6.210.0030.04720.63
5.6.200.0000.08720.95
5.6.190.0000.08021.04
5.6.180.0000.06021.04
5.6.170.0030.09021.13
5.6.160.0030.08321.09
5.6.150.0000.08720.97
5.6.140.0130.05320.97
5.6.130.0070.08021.07
5.6.120.0000.09021.00
5.6.110.0030.06321.01
5.6.100.0000.05021.07
5.6.90.0000.06321.00
5.6.80.0030.06020.53
5.6.70.0030.07720.44
5.6.60.0070.04720.42
5.6.50.0100.05020.48
5.6.40.0030.08020.38
5.6.30.0000.08020.41
5.6.20.0070.07320.40
5.6.10.0030.05320.36
5.6.00.0070.08020.42
5.5.360.0030.07720.41
5.5.350.0000.08720.48
5.5.340.0130.06020.91
5.5.330.0130.07320.88
5.5.320.0030.04320.87
5.5.310.0030.08020.91
5.5.300.0030.05020.80
5.5.290.0170.06020.78
5.5.280.0100.08020.79
5.5.270.0070.06320.91
5.5.260.0030.08720.88
5.5.250.0030.05720.70
5.5.240.0000.08020.02
5.5.230.0000.08320.26
5.5.220.0000.08320.26
5.5.210.0070.07720.18
5.5.200.0070.04320.15
5.5.190.0030.08320.18
5.5.180.0070.08020.26
5.5.160.0070.04720.25
5.5.150.0030.08320.18
5.5.140.0130.07020.17
5.5.130.0070.08320.10
5.5.120.0070.07720.18
5.5.110.0070.08020.25
5.5.100.0130.07020.18
5.5.90.0130.08020.13
5.5.80.0030.05319.97
5.5.70.0030.04020.09
5.5.60.0070.06320.05
5.5.50.0000.04020.10
5.5.40.0000.04020.14
5.5.30.0000.04320.05
5.5.20.0000.04020.14
5.5.10.0030.03720.07
5.5.00.0000.04319.95
5.4.450.0030.08719.18
5.4.440.0030.06319.17
5.4.430.0030.08019.44
5.4.420.0100.07019.32
5.4.410.0030.04319.10
5.4.400.0000.08319.19
5.4.390.0070.05318.85
5.4.380.0100.06719.03
5.4.370.0100.06719.14
5.4.360.0000.05319.04
5.4.350.0130.07019.13
5.4.340.0070.05319.16
5.4.320.0130.07019.21
5.4.310.0070.08019.14
5.4.300.0000.08319.20
5.4.290.0070.07019.13
5.4.280.0030.05018.88
5.4.270.0000.05318.84
5.4.260.0130.06719.14
5.4.250.0000.07019.12
5.4.240.0000.04019.09
5.4.230.0130.06318.95
5.4.220.0030.05319.02
5.4.210.0030.03719.11
5.4.200.0000.04319.02
5.4.190.0030.06719.02
5.4.180.0030.03718.83
5.4.170.0000.03719.14
5.4.160.0030.03719.11
5.4.150.0030.06319.12
5.4.140.0000.04316.25
5.4.130.0070.05016.24
5.4.120.0000.04316.18
5.4.110.0100.02716.50
5.4.100.0000.03716.50
5.4.90.0030.03316.50
5.4.80.0000.03716.50
5.4.70.0030.03316.39
5.4.60.0070.03016.34
5.4.50.0030.05716.52
5.4.40.0000.03716.37
5.4.30.0030.03316.46
5.4.20.0070.03316.46
5.4.10.0030.05316.45
5.4.00.0000.03715.87
5.3.290.0070.08014.75
5.3.280.0030.07714.62
5.3.270.0070.05714.57
5.3.260.0070.03314.72
5.3.250.0000.03714.61
5.3.240.0000.03714.63
5.3.230.0000.05014.63
5.3.220.0000.07314.53
5.3.210.0030.05314.68
5.3.200.0000.03714.58
5.3.190.0070.04314.53
5.3.180.0000.04014.61
5.3.170.0030.03314.57
5.3.160.0030.06714.68
5.3.150.0000.04014.62
5.3.140.0000.05714.67
5.3.130.0070.03314.53
5.3.120.0000.04014.56
5.3.110.0030.04014.54
5.3.100.0000.03714.14
5.3.90.0000.03713.99
5.3.80.0030.03314.16
5.3.70.0030.05713.90
5.3.60.0070.03013.89
5.3.50.0000.04314.00
5.3.40.0070.03013.97
5.3.30.0070.03014.02
5.3.20.0030.03313.61
5.3.10.0000.03713.57
5.3.00.0070.03713.70
5.2.170.0000.03012.25
5.2.160.0000.03012.25
5.2.150.0000.03312.25
5.2.140.0030.02712.25
5.2.130.0000.03312.25
5.2.120.0000.03012.25
5.2.110.0000.03712.25
5.2.100.0030.05012.25
5.2.90.0000.03712.25
5.2.80.0070.02312.25
5.2.70.0000.03012.25
5.2.60.0030.02712.25
5.2.50.0030.02712.25
5.2.40.0030.03712.25
5.2.30.0000.03012.25
5.2.20.0070.02312.25
5.2.10.0000.03012.25
5.2.00.0000.03012.25
5.1.60.0030.02312.25
5.1.50.0000.02712.25
5.1.40.0070.04312.25
5.1.30.0000.03712.25
5.1.20.0030.02312.25
5.1.10.0000.02712.25
5.1.00.0070.02012.25
5.0.50.0030.03012.25
5.0.40.0000.02012.25
5.0.30.0030.02712.25
5.0.20.0030.01712.25
5.0.10.0000.02012.25
5.0.00.0000.04012.25
4.4.90.0000.01712.25
4.4.80.0030.03012.25
4.4.70.0000.01712.25
4.4.60.0030.01312.25
4.4.50.0000.02712.25
4.4.40.0000.02312.25
4.4.30.0030.01312.25
4.4.20.0000.01712.25
4.4.10.0030.01312.25
4.4.00.0000.02712.25
4.3.110.0000.01712.25
4.3.100.0000.01712.25
4.3.90.0000.01312.25
4.3.80.0000.03712.25
4.3.70.0070.02712.25
4.3.60.0070.02012.25
4.3.50.0000.03712.25
4.3.40.0000.04712.25
4.3.30.0000.02312.25
4.3.20.0000.02712.25
4.3.10.0030.03312.25
4.3.00.0070.03312.25

preferences:
28.16 ms | 401 KiB | 5 Q