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"; return $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)
8.3.40.0000.01519.02
8.3.30.0060.00918.84
8.3.20.0030.00518.73
8.3.10.0060.00318.73
8.3.00.0060.00319.38
8.2.170.0110.01122.96
8.2.160.0000.01418.69
8.2.150.0000.00924.18
8.2.140.0060.00324.66
8.2.130.0000.01926.16
8.2.120.0060.00319.45
8.2.110.0040.00421.12
8.2.100.0110.00017.78
8.2.90.0050.00219.53
8.2.80.0000.00817.97
8.2.70.0040.00417.48
8.2.60.0040.00417.63
8.2.50.0030.00517.93
8.2.40.0040.00419.38
8.2.30.0060.00417.74
8.2.20.0050.00517.68
8.2.10.0050.00217.81
8.2.00.0040.00417.61
8.1.270.0040.00423.99
8.1.260.0050.00326.35
8.1.250.0080.00028.09
8.1.240.0040.00422.45
8.1.230.0080.00321.03
8.1.220.0000.00717.77
8.1.210.0000.00918.85
8.1.200.0030.00617.25
8.1.190.0080.00017.23
8.1.180.0060.00318.10
8.1.170.0040.00417.62
8.1.160.0040.00419.01
8.1.150.0000.00818.68
8.1.140.0000.00817.49
8.1.130.0070.00017.40
8.1.120.0050.00317.36
8.1.110.0070.00017.45
8.1.100.0020.00517.47
8.1.90.0070.00017.35
8.1.80.0030.00317.52
8.1.70.0000.00717.33
8.1.60.0060.00317.47
8.1.50.0020.00517.39
8.1.40.0000.00817.53
8.1.30.0040.00417.47
8.1.20.0080.00317.55
8.1.10.0030.00517.55
8.1.00.0000.00717.50
8.0.300.0040.00419.89
8.0.290.0030.00616.75
8.0.280.0030.00318.59
8.0.270.0000.00717.24
8.0.260.0030.00316.81
8.0.250.0040.00416.94
8.0.240.0070.00016.86
8.0.230.0030.00516.98
8.0.220.0000.00716.82
8.0.210.0040.00416.80
8.0.200.0030.00317.01
8.0.190.0040.00416.93
8.0.180.0080.00316.61
8.0.170.0080.00016.86
8.0.160.0050.00317.00
8.0.150.0030.00616.70
8.0.140.0000.00716.72
8.0.130.0040.00413.33
8.0.120.0000.00816.86
8.0.110.0020.00516.82
8.0.100.0040.00417.00
8.0.90.0000.00716.88
8.0.80.0110.00416.84
8.0.70.0000.00716.74
8.0.60.0040.00416.84
8.0.50.0000.00716.79
8.0.30.0070.01017.35
8.0.20.0050.01416.88
8.0.10.0060.00317.00
8.0.00.0120.01316.63
7.4.330.0020.00212.91
7.4.320.0000.00616.53
7.4.300.0000.00716.52
7.4.290.0070.00016.58
7.4.280.0030.00516.57
7.4.270.0070.00016.60
7.4.260.0000.00813.21
7.4.250.0040.00416.50
7.4.240.0030.00316.54
7.4.230.0040.00416.41
7.4.220.0040.01116.57
7.4.210.0130.00316.62
7.4.200.0030.00316.52
7.4.190.0040.00416.68
7.4.160.0130.00316.46
7.4.150.0060.01216.48
7.4.140.0040.01517.86
7.4.130.0140.00716.53
7.4.120.0040.01416.66
7.4.110.0030.01316.37
7.4.100.0090.00816.31
7.4.90.0000.01716.47
7.4.80.0070.01019.39
7.4.70.0030.01316.59
7.4.60.0110.00616.68
7.4.50.0030.00616.50
7.4.40.0000.01816.47
7.4.30.0060.01516.35
7.4.00.0030.00915.09
7.3.330.0030.00313.37
7.3.320.0000.00613.21
7.3.310.0030.00516.39
7.3.300.0000.00716.40
7.3.290.0090.00616.34
7.3.280.0100.00416.29
7.3.270.0110.00616.23
7.3.260.0090.00916.49
7.3.240.0150.00316.54
7.3.230.0160.00016.29
7.3.210.0100.01316.35
7.3.200.0030.01316.55
7.3.190.0110.00616.34
7.3.180.0090.00916.25
7.3.170.0120.00316.40
7.3.160.0090.00616.57
7.3.120.0060.01017.15
7.3.110.0060.01017.15
7.3.100.0090.00617.15
7.3.90.0060.00617.15
7.3.80.0080.00317.15
7.3.70.0030.00717.15
7.3.60.0070.01017.15
7.3.50.0120.00317.15
7.3.40.0060.00917.15
7.3.30.0040.01117.15
7.3.20.0100.00717.15
7.3.10.0030.01417.15
7.3.00.0030.00917.15
7.2.330.0160.00616.48
7.2.320.0140.00316.51
7.2.310.0170.00316.65
7.2.300.0130.00316.81
7.2.290.0170.00016.82
7.2.240.0060.00917.15
7.2.230.0000.01417.15
7.2.220.0060.00317.15
7.2.210.0040.01117.15
7.2.200.0120.00417.15
7.2.190.0090.00617.15
7.2.180.0080.00817.15
7.2.170.0030.01317.15
7.2.160.0030.01217.15
7.2.150.0070.01017.15
7.2.140.0000.01617.15
7.2.130.0030.01317.15
7.2.120.0060.00617.15
7.2.110.0090.00617.15
7.2.100.0120.00617.15
7.2.90.0100.00717.15
7.2.80.0100.00717.15
7.2.70.0060.00917.15
7.2.60.0070.00517.07
7.2.50.0070.01017.15
7.2.40.0030.01317.15
7.2.30.0030.00917.15
7.2.20.0030.01017.15
7.2.10.0040.01117.15
7.2.00.0030.01018.09
7.1.330.0070.01017.15
7.1.320.0080.00817.15
7.1.310.0080.00417.15
7.1.300.0040.00817.15
7.1.290.0040.01117.15
7.1.280.0080.00517.15
7.1.270.0110.00017.15
7.1.260.0030.01417.15
7.1.250.0060.01017.15
7.1.200.0030.00915.53
7.1.100.0060.00917.86
7.1.70.0100.00017.32
7.1.60.0100.01319.21
7.1.50.0090.01516.86
7.1.00.0100.06022.39
7.0.200.0050.00516.80
7.0.140.0000.07722.04
7.0.120.0070.07322.02
7.0.60.0070.08719.82
7.0.50.0100.07717.83
7.0.40.0170.08020.40
7.0.30.0300.04320.34
7.0.20.0270.05020.15
7.0.10.0100.08020.23
7.0.00.0030.08720.20
5.6.280.0000.07721.11
5.6.210.0000.04320.56
5.6.200.0100.06318.20
5.6.190.0130.05720.61
5.6.180.0200.07720.67
5.6.170.0130.08320.61
5.6.160.0100.07720.58
5.6.150.0130.07718.17
5.6.140.0130.07318.26
5.6.130.0030.08318.13
5.6.120.0170.08021.14
5.6.110.0070.07021.13
5.6.100.0030.06021.09
5.6.90.0130.08321.00
5.6.80.0000.08320.54
5.5.350.0400.06020.50
5.5.340.0030.04017.98
5.5.330.0170.07020.45
5.5.320.0230.08720.27
5.5.310.0170.04320.27
5.5.300.0000.05718.06
5.5.290.0170.05717.97
5.5.280.0030.08020.73
5.5.270.0000.04720.80
5.5.260.0100.08320.89
5.5.250.0170.07720.68
5.5.240.0070.07320.26
5.4.450.0100.07719.47
5.4.440.0070.08019.47
5.4.430.0070.07719.47
5.4.420.0130.05319.18
5.4.410.0030.08019.27
5.4.400.0070.07318.88
5.4.390.0030.07719.25
5.4.380.0030.05719.14
5.4.370.0070.03719.19
5.4.360.0030.04319.21
5.4.350.0030.07719.24
5.4.340.0100.04319.01
5.4.320.0070.07318.89
5.4.310.0030.03719.08
5.4.300.0030.08319.10
5.4.290.0100.04318.85
5.4.280.0100.05319.15
5.4.270.0070.06719.26
5.4.260.0100.07019.23
5.4.250.0030.04718.84
5.4.240.0030.06318.84
5.4.230.0100.04318.86
5.4.220.0100.04319.23
5.4.210.0070.04718.99
5.4.200.0030.04018.87
5.4.190.0000.07719.13
5.4.180.0200.05719.13
5.4.170.0070.04319.11
5.4.160.0100.07318.96
5.4.150.0070.06719.05
5.4.140.0100.07316.38
5.4.130.0030.05016.41
5.4.120.0030.07016.32
5.4.110.0030.04716.43
5.4.100.0030.04316.43
5.4.90.0070.07716.66
5.4.80.0030.07716.29
5.4.70.0000.06316.29
5.4.60.0070.07316.51
5.4.50.0030.04716.39
5.4.40.0070.06016.45
5.4.30.0100.07716.36
5.4.20.0130.03716.34
5.4.10.0100.04016.27
5.4.00.0070.07015.95
5.3.290.0070.07314.71
5.3.280.0070.04014.59
5.3.270.0070.04714.49
5.3.260.0100.07314.60
5.3.250.0100.06714.76
5.3.240.0000.08014.65
5.3.230.0100.06314.63
5.3.220.0070.07314.58
5.3.210.0130.05714.59
5.3.200.0030.05714.57
5.3.190.0130.05314.62
5.3.180.0070.08014.61
5.3.170.0070.04314.44
5.3.160.0030.04714.65
5.3.150.0070.03714.59
5.3.140.0130.05714.70
5.3.130.0100.04714.54
5.3.120.0070.08314.61
5.3.110.0000.07014.57
5.3.100.0170.04714.05
5.3.90.0070.06314.04
5.3.80.0070.07314.17
5.3.70.0030.07714.04
5.3.60.0030.06014.05
5.3.50.0100.06714.00
5.3.40.0070.06313.95
5.3.30.0030.07713.98
5.3.20.0100.07013.75
5.3.10.0070.05713.57
5.3.00.0030.04013.64
5.2.170.0030.04011.32
5.2.160.0100.05711.04
5.2.150.0070.05711.20
5.2.140.0070.04711.29
5.2.130.0030.04311.05
5.2.120.0030.04311.25
5.2.110.0130.05711.25
5.2.100.0070.06311.15
5.2.90.0070.02711.14
5.2.80.0070.03311.06
5.2.70.0030.06011.01
5.2.60.0030.03311.10
5.2.50.0070.04011.00
5.2.40.0130.05711.05
5.2.30.0070.05010.97
5.2.20.0100.06011.03
5.2.10.0030.06310.86
5.2.00.0070.03710.63
5.1.60.0030.05310.06
5.1.50.0030.05310.14
5.1.40.0070.02710.00
5.1.30.0100.05010.37
5.1.20.0030.06010.34
5.1.10.0030.05010.21
5.1.00.0070.0409.98
5.0.50.0000.0278.55
5.0.40.0000.0238.36
5.0.30.0000.0678.13
5.0.20.0070.0438.26
5.0.10.0070.0438.14
5.0.00.0000.0378.07
4.4.90.0000.0307.64
4.4.80.0030.0337.64
4.4.70.0070.0337.64
4.4.60.0030.0337.64
4.4.50.0030.0337.64
4.4.40.0000.0277.64
4.4.30.0070.0277.64
4.4.20.0030.0377.64
4.4.10.0030.0377.64
4.4.00.0000.0307.64
4.3.110.0030.0377.64
4.3.100.0000.0207.64
4.3.90.0030.0277.64
4.3.80.0030.0507.64
4.3.70.0030.0377.64
4.3.60.0070.0307.64
4.3.50.0030.0277.64
4.3.40.0000.0507.64
4.3.30.0000.0237.64
4.3.20.0030.0177.64
4.3.10.0030.0177.64
4.3.00.0000.0377.64

preferences:
44.46 ms | 400 KiB | 5 Q