3v4l.org

run code in 300+ PHP versions simultaneously
<?php class foo { function __construct() { $this->a = "hello"; $this->b = "hi"; $this->val = "howdy"; $val = "a"; 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)
8.3.70.0150.00018.81
8.3.60.0320.00823.47
8.3.50.0140.00623.95
8.3.40.0320.00623.56
8.3.30.0300.00523.63
8.3.20.0310.00324.03
8.3.10.0290.00725.18
8.3.00.0280.00723.80
8.2.190.0100.01016.63
8.2.180.0270.00723.46
8.2.170.0290.00923.58
8.2.160.0270.00924.94
8.2.150.0260.00825.84
8.2.140.0240.01025.50
8.2.130.0210.00726.00
8.2.120.0180.01024.20
8.2.110.0240.00724.71
8.2.100.0250.00523.81
8.2.90.0200.00923.65
8.2.80.0290.00523.27
8.2.70.0300.00523.07
8.2.60.0220.00623.30
8.2.50.0250.00823.30
8.2.40.0220.00623.40
8.2.30.0230.00923.36
8.2.20.0260.00323.13
8.2.10.0250.00723.28
8.2.00.0160.00923.15
8.1.280.0330.00625.92
8.1.270.0300.00625.50
8.1.260.0290.00526.06
8.1.250.0300.00626.64
8.1.240.0220.00925.20
8.1.230.0260.00623.65
8.1.220.0250.01023.19
8.1.210.0240.00823.54
8.1.200.0290.00723.06
8.1.190.0230.00723.03
8.1.180.0180.01123.31
8.1.170.0240.00723.46
8.1.160.0210.00824.63
8.1.150.0200.00823.57
8.1.140.0200.00723.09
8.1.130.0230.00723.22
8.1.120.0260.00523.10
8.1.110.0220.00923.09
8.1.100.0240.00723.07
8.1.90.0210.00421.66
8.1.80.0210.00821.66
8.1.70.0160.01221.67
8.1.60.0280.01021.76
8.1.50.0280.00821.68
8.1.40.0240.00621.70
8.1.30.0240.00521.75
8.1.20.0210.00421.78
8.1.10.0200.00621.72
8.1.00.0170.01121.69
8.0.300.0250.00623.54
8.0.290.0270.00422.86
8.0.280.0240.01023.42
8.0.270.0270.00622.89
8.0.260.0240.00423.04
8.0.250.0240.00622.90
8.0.240.0240.00522.89
8.0.230.0240.00822.93
8.0.220.0250.00321.35
8.0.210.0180.00821.38
8.0.200.0230.00721.39
8.0.190.0230.00621.41
8.0.180.0210.00621.35
8.0.170.0180.00721.34
8.0.160.0230.00621.35
8.0.150.0190.00321.33
8.0.140.0180.00621.35
8.0.130.0160.00720.50
8.0.120.0160.00619.76
8.0.110.0140.00819.72
8.0.100.0180.00619.75
8.0.90.0150.00719.24
8.0.80.0190.00519.26
8.0.70.0170.00419.24
8.0.60.0160.00519.29
8.0.50.0170.00419.27
8.0.30.0130.00818.09
8.0.20.0140.00818.34
8.0.10.0120.00918.41
8.0.00.0090.01017.92
7.4.330.0190.00522.28
7.4.320.0270.00522.77
7.4.300.0160.00521.20
7.4.290.0140.00621.22
7.4.280.0160.00721.22
7.4.270.0130.00921.23
7.4.260.0160.00621.23
7.4.250.0190.00419.64
7.4.240.0160.00519.09
7.4.230.0190.00619.61
7.4.220.0130.01019.10
7.4.210.0140.00618.46
7.4.200.0150.00619.09
7.4.190.0150.00719.70
7.4.180.0180.00419.69
7.4.160.0150.00518.13
7.4.150.0130.00818.15
7.4.140.0120.00817.99
7.4.130.0130.00717.56
7.4.120.0130.00917.55
7.4.110.0130.00817.52
7.4.100.0130.00817.48
7.4.90.0140.00717.28
7.4.80.0120.00917.48
7.4.70.0130.00717.30
7.4.60.0130.00717.32
7.4.50.0120.00917.25
7.4.40.0130.00817.23
7.4.30.0120.00817.19
7.4.20.0140.00717.18
7.4.10.0120.00917.19
7.4.00.0120.00817.15
7.3.330.0160.00618.18
7.3.320.0170.00618.94
7.3.310.0190.00519.54
7.3.300.0190.00419.53
7.3.290.0150.00619.04
7.3.280.0120.00918.32
7.3.270.0130.00818.05
7.3.260.0150.00517.81
7.3.250.0140.00817.54
7.3.240.0110.01017.62
7.3.230.0130.00817.51
7.3.220.0120.01017.48
7.3.210.0130.00917.18
7.3.200.0130.00817.40
7.3.190.0130.00817.27
7.3.180.0130.00817.23
7.3.170.0140.00817.16
7.3.160.0120.00817.18
7.3.150.0140.00717.16
7.3.140.0120.00817.16
7.3.130.0120.00817.13
7.3.120.0120.00717.06
7.3.110.0140.00817.12
7.3.100.0120.00917.10
7.3.90.0120.00717.27
7.3.80.0120.00817.18
7.3.70.0120.00716.91
7.3.60.0110.01016.92
7.3.50.0100.00916.96
7.3.40.0110.00816.74
7.3.30.0110.00816.65
7.3.20.0190.00817.12
7.3.10.0200.00817.13
7.3.00.0220.00717.04
7.2.340.0150.00817.66
7.2.330.0130.00917.32
7.2.320.0130.00917.34
7.2.310.0180.00517.33
7.2.300.0110.01017.34
7.2.290.0140.00817.19
7.2.280.0120.00917.25
7.2.270.0120.00917.28
7.2.260.0130.00917.21
7.2.250.0130.00917.26
7.2.240.0130.00817.28
7.2.230.0140.00717.31
7.2.220.0120.00917.30
7.2.210.0130.00917.25
7.2.200.0130.00917.08
7.2.190.0120.00917.06
7.2.180.0110.01117.07
7.2.170.0130.00816.89
7.2.160.0120.01016.83
7.2.150.0210.00917.34
7.2.140.0200.00817.34
7.2.130.0240.00817.27
7.2.120.0140.00817.28
7.2.110.0230.00817.29
7.2.100.0220.00717.28
7.2.90.0190.00917.24
7.2.80.0190.00917.26
7.2.70.0140.00917.24
7.2.60.0180.00817.26
7.2.50.0170.00917.28
7.2.40.0220.00717.28
7.2.30.0210.01017.32
7.2.20.0180.00917.31
7.2.10.0210.01017.33
7.2.00.0170.00817.41
7.1.330.0140.00816.45
7.1.320.0170.00816.42
7.1.310.0150.00816.45
7.1.300.0150.00816.47
7.1.290.0210.00716.44
7.1.280.0160.00716.39
7.1.270.0210.00616.28
7.1.260.0220.00716.29
7.1.250.0220.00816.21
7.1.240.0240.00816.13
7.1.230.0220.00816.17
7.1.220.0230.00816.19
7.1.210.0210.00916.16
7.1.200.0260.00616.14
7.1.190.0210.00816.17
7.1.180.0240.00716.14
7.1.170.0220.00716.12
7.1.160.0230.00816.18
7.1.150.0230.00716.21
7.1.140.0220.00816.21
7.1.130.0240.00816.19
7.1.120.0240.00716.24
7.1.110.0200.00816.17
7.1.100.0220.00716.19
7.1.90.0240.00916.12
7.1.80.0210.00716.14
7.1.70.0200.00816.10
7.1.60.0210.00917.35
7.1.50.0190.00917.44
7.1.40.0200.00817.37
7.1.30.0200.00817.39
7.1.20.0220.00917.41
7.1.10.0250.00716.15
7.1.00.0180.00816.11
7.0.330.0250.00815.96
7.0.320.0220.00815.89
7.0.310.0230.00815.91
7.0.300.0230.00915.93
7.0.290.0210.00815.91
7.0.280.0220.00715.91
7.0.270.0220.00715.91
7.0.260.0240.00715.93
7.0.250.0220.00815.92
7.0.240.0200.00915.90
7.0.230.0200.00915.96
7.0.220.0200.00715.93
7.0.210.0210.00715.85
7.0.200.0180.00815.87
7.0.190.0190.00915.97
7.0.180.0200.00815.91
7.0.170.0200.00815.92
7.0.160.0200.00815.90
7.0.150.0190.00915.86
7.0.140.0200.00715.84
7.0.130.0180.00815.95
7.0.120.0190.00815.95
7.0.110.0180.00815.92
7.0.100.0180.00815.88
7.0.90.0180.00815.91
7.0.80.0180.00815.86
7.0.70.0190.00815.78
7.0.60.0190.00815.76
7.0.50.0170.00915.79
7.0.40.0270.00815.82
7.0.30.0190.00915.81
7.0.20.0200.00715.79
7.0.10.0220.00915.83
7.0.00.0180.00715.75
5.6.400.0150.01016.26
5.6.390.0140.00916.29
5.6.380.0150.00816.18
5.6.370.0170.00816.11
5.6.360.0140.01116.17
5.6.350.0160.00916.21
5.6.340.0140.01116.22
5.6.330.0150.01016.20
5.6.320.0160.00816.17
5.6.310.0150.00816.17
5.6.300.0160.01316.65
5.6.290.0150.01316.69
5.6.280.0140.01416.69
5.6.270.0140.01516.71
5.6.260.0150.01416.65
5.6.250.0160.01316.62
5.6.240.0140.01716.62
5.6.230.0150.01516.67
5.6.220.0150.01516.66
5.6.210.0150.01416.66
5.6.200.0150.01616.65
5.6.190.0170.01216.68
5.6.180.0140.01416.67
5.6.170.0150.01416.67
5.6.160.0150.01616.69
5.6.150.0150.01316.67
5.6.140.0160.01416.68
5.6.130.0160.01316.67
5.6.120.0150.01516.68
5.6.110.0140.01416.62
5.6.100.0150.01616.67
5.6.90.0160.01616.63
5.6.80.0150.01516.51
5.6.70.0150.01516.56
5.6.60.0150.01416.56
5.6.50.0140.01616.50
5.6.40.0140.01616.53
5.6.30.0150.01316.50
5.6.20.0130.01516.48
5.6.10.0130.01416.51
5.6.00.0150.01316.49
5.5.380.0140.01516.16
5.5.370.0140.01616.23
5.5.360.0160.01316.07
5.5.350.0150.01316.13
5.5.340.0150.01516.15
5.5.330.0150.01416.18
5.5.320.0150.01416.17
5.5.310.0150.01516.20
5.5.300.0160.01416.16
5.5.290.0170.01416.18
5.5.280.0150.01416.16
5.5.270.0150.01616.13
5.5.260.0160.01416.15
5.5.250.0160.01616.21
5.5.240.0150.01616.12
5.5.230.0160.01316.08
5.5.220.0150.01316.08
5.5.210.0150.01416.14
5.5.200.0150.01516.03
5.5.190.0160.01216.05
5.5.180.0160.01416.06
5.5.170.0150.00915.89
5.5.160.0130.01616.04
5.5.150.0150.01315.98
5.5.140.0150.01416.01
5.5.130.0150.01516.02
5.5.120.0160.01316.02
5.5.110.0150.01516.03
5.5.100.0150.01416.04
5.5.90.0140.01415.99
5.5.80.0150.01316.08
5.5.70.0160.01316.09
5.5.60.0150.01416.04
5.5.50.0150.01316.04
5.5.40.0140.01416.07
5.5.30.0140.01416.06
5.5.20.0150.01416.06
5.5.10.0150.01316.04
5.5.00.0150.01416.07
5.4.450.0130.01414.08
5.4.440.0130.01214.09
5.4.430.0130.01214.07
5.4.420.0120.01414.06
5.4.410.0120.01314.05
5.4.400.0120.01413.97
5.4.390.0130.01213.97
5.4.380.0120.01213.97
5.4.370.0120.01214.00
5.4.360.0120.01213.98
5.4.350.0110.01213.99
5.4.340.0110.01214.02
5.4.330.0130.00613.42
5.4.320.0120.01214.00
5.4.310.0130.01014.00
5.4.300.0130.01214.02
5.4.290.0130.01314.01
5.4.280.0130.01114.01
5.4.270.0120.01214.00
5.4.260.0120.01414.00
5.4.250.0140.01013.96
5.4.240.0120.01113.96
5.4.230.0120.01313.93
5.4.220.0120.01313.96
5.4.210.0130.01113.92
5.4.200.0110.01213.95
5.4.190.0130.01113.91
5.4.180.0120.01213.91
5.4.170.0120.01113.95
5.4.160.0120.01113.94
5.4.150.0120.01213.95
5.4.140.0120.01113.75
5.4.130.0130.01213.76
5.4.120.0120.01213.79
5.4.110.0130.01013.81
5.4.100.0150.01013.78
5.4.90.0110.01213.75
5.4.80.0120.01213.81
5.4.70.0120.01113.85
5.4.60.0130.01013.80
5.4.50.0130.01013.79
5.4.40.0120.01113.80
5.4.30.0110.01213.82
5.4.20.0130.01013.82
5.4.10.0130.01113.79
5.4.00.0120.01213.70
5.3.290.0120.01213.91
5.3.280.0120.01213.82
5.3.270.0120.01113.88
5.3.260.0130.01313.85
5.3.250.0120.01313.88
5.3.240.0120.01113.78
5.3.230.0130.01113.83
5.3.220.0120.01313.63
5.3.210.0120.01213.67
5.3.200.0120.01313.64
5.3.190.0110.01313.68
5.3.180.0110.01313.77
5.3.170.0120.01113.76
5.3.160.0120.01213.75
5.3.150.0120.01213.78
5.3.140.0130.01113.75
5.3.130.0120.01313.75
5.3.120.0130.01313.75
5.3.110.0120.01213.75
5.3.100.0130.01113.70
5.3.90.0120.01213.81
5.3.80.0120.01213.67
5.3.70.0130.01113.68
5.3.60.0120.01113.72
5.3.50.0110.01313.66
5.3.40.0130.01313.66
5.3.30.0110.01213.69
5.3.20.0120.01113.64
5.3.10.0110.01113.54
5.3.00.0130.01113.49

preferences:
46.55 ms | 401 KiB | 5 Q