3v4l.org

run code in 300+ PHP versions simultaneously
<?php class foo { function __construct() { $this->a = "hello"; $this->b = "hif"; $this->val = "hoswdy"; $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)
8.3.60.0110.01118.43
8.3.50.0150.00221.09
8.3.40.0040.01118.79
8.3.30.0080.00619.23
8.3.20.0040.00420.18
8.3.10.0000.00721.80
8.3.00.0080.00022.43
8.2.180.0070.00716.38
8.2.170.0140.00722.96
8.2.160.0070.00719.27
8.2.150.0080.00024.18
8.2.140.0030.00624.66
8.2.130.0040.00426.16
8.2.120.0040.00419.63
8.2.110.0060.00321.89
8.2.100.0110.00018.16
8.2.90.0030.00619.05
8.2.80.0040.00417.97
8.2.70.0040.00417.59
8.2.60.0080.00018.03
8.2.50.0000.00818.07
8.2.40.0040.00418.16
8.2.30.0070.00017.95
8.2.20.0000.00817.79
8.2.10.0090.00017.73
8.2.00.0030.00617.79
8.1.280.0070.01125.92
8.1.270.0080.00022.23
8.1.260.0000.01026.35
8.1.250.0000.00828.09
8.1.240.0060.00323.73
8.1.230.0040.00719.03
8.1.220.0000.00817.77
8.1.210.0080.00018.77
8.1.200.0090.00017.48
8.1.190.0040.00417.52
8.1.180.0040.00420.54
8.1.170.0050.00318.67
8.1.160.0000.00722.05
8.1.150.0000.00718.59
8.1.140.0040.00417.38
8.1.130.0050.00317.91
8.1.120.0000.00717.37
8.1.110.0040.00417.34
8.1.100.0000.00717.29
8.1.90.0040.00417.49
8.1.80.0030.00317.52
8.1.70.0000.00717.35
8.1.60.0000.00817.55
8.1.50.0060.00317.50
8.1.40.0030.00517.37
8.1.30.0030.00517.61
8.1.20.0080.00017.63
8.1.10.0000.00917.48
8.1.00.0040.00417.52
8.0.300.0060.00318.77
8.0.290.0040.00417.05
8.0.280.0000.00718.39
8.0.270.0050.00217.18
8.0.260.0070.00016.83
8.0.250.0080.00016.92
8.0.240.0000.00816.91
8.0.230.0000.00716.99
8.0.220.0000.00716.88
8.0.210.0020.00516.90
8.0.200.0030.00517.05
8.0.190.0030.00616.86
8.0.180.0040.00416.93
8.0.170.0040.00416.88
8.0.160.0000.00716.82
8.0.150.0040.00416.79
8.0.140.0000.00816.84
8.0.130.0030.00313.32
8.0.120.0000.00716.73
8.0.110.0040.00416.75
8.0.100.0000.00816.77
8.0.90.0040.00416.76
8.0.80.0070.01416.83
8.0.70.0050.00216.84
8.0.60.0000.00716.86
8.0.50.0030.00316.72
8.0.30.0090.01016.95
8.0.20.0040.01417.40
8.0.10.0000.00717.05
8.0.00.0130.00616.73
7.4.330.0000.00515.00
7.4.320.0060.00016.57
7.4.300.0030.00316.63
7.4.290.0020.00516.55
7.4.280.0030.00316.63
7.4.270.0000.00616.58
7.4.260.0000.00716.57
7.4.250.0000.00716.51
7.4.240.0050.00216.50
7.4.230.0030.00316.41
7.4.220.0090.00916.50
7.4.210.0040.01316.60
7.4.200.0030.00316.57
7.4.190.0030.00316.46
7.4.160.0110.00616.38
7.4.150.0130.01017.40
7.4.140.0090.00917.86
7.4.130.0100.01116.53
7.4.120.0130.00316.42
7.4.110.0030.01316.25
7.4.100.0040.01416.62
7.4.90.0030.01416.74
7.4.80.0160.00619.39
7.4.70.0030.01416.31
7.4.60.0120.00916.58
7.4.50.0000.00916.53
7.4.40.0060.00922.77
7.4.30.0160.00416.42
7.4.00.0030.01014.67
7.3.330.0050.00013.29
7.3.320.0050.00013.21
7.3.310.0070.00016.40
7.3.300.0000.00616.33
7.3.290.0100.00316.38
7.3.280.0080.00816.37
7.3.270.0230.00017.40
7.3.260.0120.00616.34
7.3.250.0080.01316.44
7.3.240.0190.00316.37
7.3.230.0110.01116.39
7.3.210.0040.01216.39
7.3.200.0090.00919.39
7.3.190.0120.00916.66
7.3.180.0030.01616.22
7.3.170.0090.00616.50
7.3.160.0060.00916.22
7.3.120.0110.00414.58
7.2.330.0110.00616.68
7.2.320.0100.00716.67
7.2.310.0030.02016.38
7.2.300.0060.01216.87
7.2.290.0140.00316.50
7.2.00.0060.01019.41
7.1.70.0030.00617.19
7.1.60.0000.01117.25
7.1.50.0070.01416.96
7.1.00.0000.04022.30
7.0.200.0120.00616.39
7.0.140.0030.09322.07
7.0.60.0100.08019.92
7.0.50.0070.07317.80
7.0.40.0000.09020.21
7.0.30.0330.06720.16
7.0.20.0130.08720.20
7.0.10.0030.06720.15
7.0.00.0000.05320.20
5.6.280.0030.07321.02
5.6.210.0230.05720.55
5.6.200.0030.04018.23
5.6.190.0100.06320.67
5.6.180.0330.03720.66
5.6.170.0330.07720.57
5.6.160.0030.08320.45
5.6.150.0070.07318.24
5.6.140.0030.04018.15
5.6.130.0100.07718.18
5.6.120.0100.08021.09
5.6.110.0130.08320.94
5.6.100.0100.08020.97
5.6.90.0100.03720.88
5.6.80.0100.03720.29
5.5.350.0170.08020.43
5.5.340.0030.05718.06
5.5.330.0100.07320.41
5.5.320.0230.04720.37
5.5.310.0270.04020.30
5.5.300.0170.06717.95
5.5.290.0130.07717.94
5.5.280.0000.05020.80
5.5.270.0000.04320.96
5.5.260.0130.07020.77
5.5.250.0100.07720.79
5.5.240.0000.05020.23
5.4.450.0270.05319.51
5.4.440.0670.05319.55
5.4.430.0070.06019.46
5.4.420.0100.05319.52
5.4.410.0070.05319.48
5.4.400.0130.05318.79
5.4.390.1130.05318.61
5.4.380.0330.07018.63
5.4.370.0200.04718.84
5.4.360.0100.05718.59
5.4.350.0130.05318.81
5.4.340.0070.06018.81
5.4.320.0070.03812.50
5.4.310.0070.03512.50
5.4.300.0070.03612.50
5.4.290.0030.04112.50
5.4.280.0020.03912.39
5.4.270.0030.04712.39
5.4.260.0070.07318.80
5.4.250.0000.07719.09
5.4.240.0030.07718.90
5.4.230.0100.05318.80
5.4.220.0200.04718.65
5.4.210.0070.07318.96
5.4.200.0100.05718.95
5.4.190.0100.06318.94
5.4.180.0130.06319.09
5.4.170.0030.06718.99
5.4.160.0070.05718.76
5.4.150.0130.07718.83
5.4.140.0030.06316.39
5.4.130.0100.06316.46
5.4.120.0100.07316.38
5.4.110.0070.07016.47
5.4.100.0030.05716.62
5.4.90.0170.06016.49
5.4.80.0170.04716.32
5.4.70.0170.04716.49
5.4.60.0230.05316.47
5.4.50.0130.05016.45
5.4.40.0070.05016.54
5.4.30.0100.06716.59
5.4.20.0230.05716.48
5.4.10.0100.07016.35
5.4.00.0030.05015.91
5.3.290.0100.04012.80
5.3.280.0030.06714.50
5.3.270.0170.07014.58
5.3.260.0230.04014.51
5.3.250.0030.05714.43
5.3.240.0230.05714.74
5.3.230.0200.05714.66
5.3.220.0130.05014.55
5.3.210.0130.06714.65
5.3.200.0200.06714.58
5.3.190.0170.04314.64
5.3.180.0130.06014.64
5.3.170.0100.07014.74
5.3.160.0130.06714.39
5.3.150.0030.07314.39
5.3.140.0070.05314.63
5.3.130.0100.07314.62
5.3.120.0130.04714.62
5.3.110.0130.07314.56
5.3.100.0030.07014.20
5.3.90.0170.06014.02
5.3.80.0100.06713.92
5.3.70.0070.06313.84
5.3.60.0130.06014.08
5.3.50.0130.05314.17
5.3.40.0100.06314.17
5.3.30.0100.05314.12
5.3.20.0070.04713.66
5.3.10.0100.06313.73
5.3.00.0000.05713.62
5.2.170.0100.05010.97
5.2.160.0100.04011.13
5.2.150.0030.05711.36
5.2.140.0070.04011.21
5.2.130.0030.06011.17
5.2.120.0070.03711.17
5.2.110.0030.04311.18
5.2.100.0170.05011.07
5.2.90.0030.04711.19
5.2.80.0170.04011.16
5.2.70.0000.06011.07
5.2.60.0030.05011.13
5.2.50.0100.05311.08
5.2.40.0100.04711.08
5.2.30.0100.05710.80
5.2.20.0030.05311.04
5.2.10.0030.05710.96
5.2.00.0070.05710.63
5.1.60.0070.03310.05
5.1.50.0030.0439.99
5.1.40.0030.03310.04
5.1.30.0000.04010.31
5.1.20.0100.03010.18
5.1.10.0130.02710.16
5.1.00.0100.03010.10
5.0.50.0030.0308.70
5.0.40.0070.0238.47
5.0.30.0070.0408.46
5.0.20.0070.0238.43
5.0.10.0000.0408.13
5.0.00.0030.0438.19
4.4.90.0000.0278.13
4.4.80.0000.0238.13
4.4.70.0030.0308.13
4.4.60.0070.0278.13
4.4.50.0030.0378.13
4.4.40.0130.0238.13
4.4.30.0030.0208.13
4.4.20.0030.0238.13
4.4.10.0000.0278.13
4.4.00.0030.0378.13
4.3.110.0000.0238.13
4.3.100.0030.0208.13
4.3.90.0000.0208.13
4.3.80.0030.0338.13
4.3.70.0070.0278.13
4.3.60.0070.0178.13
4.3.50.0070.0278.13
4.3.40.0030.0308.13
4.3.30.0000.0238.13
4.3.20.0030.0208.13
4.3.10.0000.0238.13
4.3.00.0030.0237.63

preferences:
44.8 ms | 401 KiB | 5 Q