3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php class User { public $username = 'user'; public $test; } class Test { public $here = 'here'; } $user = new User; $test = new Test; $user->test = $test; $string = 'username'; var_dump($user->$string); echo '<br>'; $string = 'test'; var_dump($user->test); echo '<br>'; $string = 'test->here'; echo $user->$string;

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).
Note: hhvm uses a JIT which only kicks in after a few runs. Since we run scripts only once, hhvm always runs slower.

VersionSystem time (s)User time (s)Memory (MiB)
7.3.0rc40.0220.00698.97
7.3.0rc30.0150.00416.53
7.3.0beta10.0030.00313.00
7.3.0alpha10.0050.00512.83
7.2.60.0130.00316.64
7.2.00.0000.01619.50
7.1.200.0000.01215.67
7.1.100.0070.00418.34
7.1.70.0100.00717.22
7.1.60.0030.02019.33
7.1.50.0070.01116.98
7.1.00.0000.08022.48
7.0.200.0040.01116.82
7.0.140.0030.07322.15
7.0.100.0370.07319.96
7.0.90.0030.08019.93
7.0.80.0170.05019.89
7.0.70.0130.07319.85
7.0.60.0130.08019.99
7.0.50.0100.07020.20
7.0.40.0130.06320.13
7.0.30.0030.09320.18
7.0.20.0030.08720.01
7.0.10.0100.07720.08
7.0.00.0070.07720.07
5.6.280.0030.07020.78
5.6.250.0070.08720.59
5.6.240.0100.08020.63
5.6.230.0170.06720.66
5.6.220.0100.07320.51
5.6.210.0100.07320.58
5.6.200.0070.08021.18
5.6.190.0170.07321.07
5.6.180.0130.08320.89
5.6.170.0230.06721.17
5.6.160.0070.08321.08
5.6.150.0100.07020.95
5.6.140.0070.07721.14
5.6.130.0070.09021.04
5.6.120.0070.08721.16
5.6.110.0070.08721.00
5.6.100.0030.07720.91
5.6.90.0130.07321.00
5.6.80.0030.05020.48
5.6.70.0130.07320.45
5.6.60.0100.06720.36
5.6.50.0030.08320.34
5.6.40.0030.07720.30
5.6.30.0130.07720.40
5.6.20.0070.09020.40
5.6.10.0030.08020.30
5.6.00.0030.08720.36
5.5.380.0070.08020.41
5.5.370.0200.06320.36
5.5.360.0100.07020.39
5.5.350.0100.04720.45
5.5.340.0100.06320.78
5.5.330.0030.06020.77
5.5.320.0130.07720.86
5.5.310.0130.07320.82
5.5.300.0030.08020.88
5.5.290.0030.07320.86
5.5.280.0030.08320.82
5.5.270.0100.07720.87
5.5.260.0100.05020.63
5.5.250.0070.07720.67
5.5.240.0130.06320.25
5.5.230.0100.06020.26
5.5.220.0070.08020.28
5.5.210.0130.06720.15
5.5.200.0130.07320.07
5.5.190.0000.08020.24
5.5.180.0070.08020.14
5.5.160.0000.07020.17
5.5.150.0000.08020.21
5.5.140.0070.05720.25
5.5.130.0030.07320.18
5.5.120.0070.05020.19
5.5.110.0030.06320.22
5.5.100.0070.07320.11
5.5.90.0070.07319.94
5.5.80.0030.08320.16
5.5.70.0070.06020.05
5.5.60.0100.07320.02
5.5.50.0030.08019.91
5.5.40.0100.07719.99
5.5.30.0030.05720.03
5.5.20.0030.06720.07
5.5.10.0100.05320.05
5.5.00.0030.08320.02
5.4.450.0070.08019.48
5.4.440.0130.04319.55
5.4.430.0030.07319.39
5.4.420.0100.08019.27
5.4.410.0170.07019.23
5.4.400.0100.07019.04
5.4.390.0100.05719.03
5.4.380.0030.07719.14
5.4.370.0170.06319.23
5.4.360.0070.04718.87
5.4.350.0070.07319.13
5.4.340.0170.06019.18
5.4.320.0030.06718.85
5.4.310.0000.05019.13
5.4.300.0170.04019.02
5.4.290.0000.04019.16
5.4.280.0070.07719.20
5.4.270.0070.07318.95
5.4.260.0070.03319.12
5.4.250.0030.04719.11
5.4.240.0070.07018.85
5.4.230.0170.06319.14
5.4.220.0000.05018.87
5.4.210.0030.08719.12
5.4.200.0130.04319.04
5.4.190.0100.06719.04
5.4.180.0100.06718.94
5.4.170.0070.07718.91
5.4.160.0130.07019.00
5.4.150.0130.07319.21
5.4.140.0100.06016.25
5.4.130.0070.05316.50
5.4.120.0000.07716.54
5.4.110.0000.07016.39
5.4.100.0030.03316.38
5.4.90.0100.07316.49
5.4.80.0100.06316.55
5.4.70.0000.03716.43
5.4.60.0030.07316.34
5.4.50.0030.08716.52
5.4.40.0030.06316.52
5.4.30.0070.06316.46
5.4.20.0030.05716.46
5.4.10.0070.07016.32
5.4.00.0070.05715.85
5.3.290.0100.07714.59
5.3.280.0030.07714.61
5.3.270.0070.08014.71
5.3.260.0030.07014.59
5.3.250.0070.06314.72
5.3.240.0130.06714.62
5.3.230.0030.08014.57
5.3.220.0130.06714.53
5.3.210.0100.07714.62
5.3.200.0070.07314.53
5.3.190.0000.06014.50
5.3.180.0000.05014.57
5.3.170.0100.07014.64
5.3.160.0070.07714.65
5.3.150.0100.03314.67
5.3.140.0030.07714.62
5.3.130.0030.07714.51
5.3.120.0030.08014.59
5.3.110.0070.08014.65
5.3.100.0130.07014.06
5.3.90.0030.07714.06
5.3.80.0030.04313.89
5.3.70.0000.08013.99
5.3.60.0130.06314.05
5.3.50.0030.04713.88
5.3.40.0070.07013.95
5.3.30.0030.07713.96
5.3.20.0000.05013.77
5.3.10.0030.04013.57
5.3.00.0030.06313.55
5.2.170.0100.06011.56
5.2.160.0030.05311.56
5.2.150.0030.05011.56
5.2.140.0030.06311.56
5.2.130.0030.05711.56
5.2.120.0000.05011.56
5.2.110.0030.05711.56
5.2.100.0030.06311.56
5.2.90.0100.03311.56
5.2.80.0100.05311.56
5.2.70.0030.06311.56
5.2.60.0030.06311.56
5.2.50.0030.04311.56
5.2.40.0100.05311.56
5.2.30.0030.06311.56
5.2.20.0000.03711.56
5.2.10.0070.03711.56
5.2.00.0070.02711.56
5.1.60.0070.05311.56
5.1.50.0030.05011.56
5.1.40.0030.05011.56
5.1.30.0030.03011.56
5.1.20.0030.05711.56
5.1.10.0000.05011.56
5.1.00.0030.05011.56
5.0.50.0030.04711.56
5.0.40.0070.03711.56
5.0.30.0070.05011.56
5.0.20.0000.02711.56
5.0.10.0130.03311.56
5.0.00.0070.04711.56
4.4.90.0000.04011.56
4.4.80.0030.03011.56
4.4.70.0070.03011.56
4.4.60.0000.03711.56
4.4.50.0030.02711.56
4.4.40.0000.05711.56
4.4.30.0000.03311.56
4.4.20.0030.01711.56
4.4.10.0000.01711.56
4.4.00.0030.04011.56
4.3.110.0000.03711.56
4.3.100.0030.01311.56
4.3.90.0030.01311.56
4.3.80.0000.04711.56
4.3.70.0000.03011.56
4.3.60.0030.03311.56
4.3.50.0000.03711.56
4.3.40.0070.03311.56
4.3.30.0000.03711.56
4.3.20.0070.03011.56
4.3.10.0030.02311.56
4.3.00.0000.02011.56