3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php class MyIterator implements Iterator { private $var = array(); public function __construct($array) { if (is_array($array)) { $this->var = $array; } } public function rewind() { echo "rewinding\n"; reset($this->var); } public function current() { $var = current($this->var); echo "current: $var\n"; return $var; } public function key() { $var = key($this->var); echo "key: $var\n"; return $var; } public function next() { $var = next($this->var); echo "next: $var\n"; return $var; } public function valid() { $key = key($this->var); $var = ($key !== NULL && $key !== FALSE); echo "valid: $var\n"; return $var; } } $values = array(1,2,3); $it = new MyIterator($values); foreach ($it as $a => $b) { print "$a: $b\n"; } var_dump($it->value()) ?>

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)
7.2.60.0100.00317.00
7.2.00.0090.00619.62
7.1.200.0060.00615.63
7.1.100.0040.00818.21
7.1.70.0000.00716.93
7.1.60.0030.02019.29
7.1.50.0130.01017.12
7.1.00.0000.08022.36
7.0.200.0040.00416.79
7.0.140.0000.07322.12
7.0.100.0070.08319.92
7.0.90.0030.08019.95
7.0.80.0070.08020.01
7.0.70.0100.07019.87
7.0.60.0070.04020.10
7.0.50.0070.04320.32
7.0.40.0130.03020.13
7.0.30.0000.04720.00
7.0.20.0070.06020.17
7.0.10.0070.04020.10
7.0.00.0070.03719.95
5.6.280.0000.07720.90
5.6.250.0170.05320.82
5.6.240.0030.06320.63
5.6.230.0130.07020.60
5.6.220.0130.06320.59
5.6.210.0100.03720.78
5.6.200.0130.04321.10
5.6.190.0030.04020.95
5.6.180.0070.04021.02
5.6.170.0030.04320.95
5.6.160.0070.08021.09
5.6.150.0000.05321.05
5.6.140.0030.04721.18
5.6.130.0030.06721.18
5.6.120.0070.05720.96
5.6.110.0100.05721.00
5.6.100.0030.03721.13
5.6.90.0030.07021.02
5.6.80.0070.04320.52
5.6.70.0070.03720.42
5.6.60.0030.04020.32
5.6.50.0070.03720.50
5.6.40.0070.03720.39
5.6.30.0030.04320.43
5.6.20.0070.03720.38
5.6.10.0030.04020.44
5.6.00.0000.04320.45
5.5.380.0100.06320.46
5.5.370.0030.08320.42
5.5.360.0070.09020.42
5.5.350.0130.05720.43
5.5.340.0170.04020.82
5.5.330.0000.04320.90
5.5.320.0070.03320.79
5.5.310.0030.06720.89
5.5.300.0100.08720.93
5.5.290.0070.04020.75
5.5.280.0000.04320.63
5.5.270.0130.06020.79
5.5.260.0000.06020.77
5.5.250.0070.03720.62
5.5.240.0070.03720.27
5.5.230.0030.04320.26
5.5.220.0030.04020.16
5.5.210.0070.04020.01
5.5.200.0030.04020.28
5.5.190.0070.03720.29
5.5.180.0030.04020.01
5.5.160.0030.04020.24
5.5.150.0070.03720.23
5.5.140.0030.04020.19
5.5.130.0070.03720.19
5.5.120.0030.03720.23
5.5.110.0070.07720.15
5.5.100.0030.08320.15
5.5.90.0070.08020.14
5.5.80.0000.07320.18
5.5.70.0070.06020.15
5.5.60.0070.07719.97
5.5.50.0030.05720.04
5.5.40.0070.07020.12
5.5.30.0070.07720.08
5.5.20.0070.07720.12
5.5.10.0100.07020.12
5.5.00.0170.06720.13
5.4.450.0030.06319.45
5.4.440.0070.08019.37
5.4.430.0030.05319.37
5.4.420.0030.04019.36
5.4.410.0100.05019.32
5.4.400.0070.03319.21
5.4.390.0030.03719.05
5.4.380.0100.03319.13
5.4.370.0070.03319.13
5.4.360.0070.03719.13
5.4.350.0000.04019.05
5.4.340.0000.04319.17
5.4.320.0030.03719.18
5.4.310.0030.03719.02
5.4.300.0030.03718.86
5.4.290.0030.03318.87
5.4.280.0000.04318.87
5.4.270.0070.03719.02
5.4.260.0130.07319.16
5.4.250.0100.05318.87
5.4.240.0000.06319.09
5.4.230.0070.06718.95
5.4.220.0030.07319.02
5.4.210.0100.07319.02
5.4.200.0070.06018.87
5.4.190.0200.05719.03
5.4.180.0100.06718.87
5.4.170.0070.06019.20
5.4.160.0130.07018.87
5.4.150.0100.08019.16
5.4.140.0030.07716.33
5.4.130.0030.07016.38
5.4.120.0030.07316.41
5.4.110.0100.06016.50
5.4.100.0070.08016.36
5.4.90.0030.07716.47
5.4.80.0070.06316.45
5.4.70.0170.05016.38
5.4.60.0030.06316.42
5.4.50.0070.05316.33
5.4.40.0100.06716.54
5.4.30.0030.05716.43
5.4.20.0100.07016.53
5.4.10.0130.05316.32
5.4.00.0030.04315.90
5.3.290.0000.04315.72
5.3.280.0100.04015.72
5.3.270.0070.07715.72
5.3.260.0070.08315.72
5.3.250.0030.04315.72
5.3.240.0100.07315.72
5.3.230.0100.04015.72
5.3.220.0030.06315.72
5.3.210.0000.08015.72
5.3.200.0130.06315.72
5.3.190.0070.04315.72
5.3.180.0100.07015.72
5.3.170.0070.07315.72
5.3.160.0100.05315.72
5.3.150.0100.07315.72
5.3.140.0030.04315.72
5.3.130.0070.05015.72
5.3.120.0100.05715.72
5.3.110.0070.08315.72
5.3.100.0070.05715.72
5.3.90.0130.07015.72
5.3.80.0030.08015.72
5.3.70.0000.08015.72
5.3.60.0070.07015.72
5.3.50.0130.06315.72
5.3.40.0030.08015.72
5.3.30.0070.07315.72
5.3.20.0030.08015.72
5.3.10.0030.07315.72
5.3.00.0000.07015.72
5.2.170.0030.06315.72
5.2.160.0030.05315.72
5.2.150.0100.02715.72
5.2.140.0070.05315.72
5.2.130.0000.06015.72
5.2.120.0100.06015.72
5.2.110.0100.05715.72
5.2.100.0000.06315.72
5.2.90.0030.06715.72
5.2.80.0000.05715.72
5.2.70.0070.03015.72
5.2.60.0100.03015.72
5.2.50.0100.05715.72
5.2.40.0000.03315.72
5.2.30.0030.04715.72
5.2.20.0030.05315.72
5.2.10.0070.03015.72
5.2.00.0100.03015.72
5.1.60.0130.02015.72
5.1.50.0100.03715.72
5.1.40.0130.04315.72
5.1.30.0030.04015.72
5.1.20.0070.04015.72
5.1.10.0030.05015.72
5.1.00.0070.05315.72
5.0.50.0030.04015.72
5.0.40.0000.04015.72
5.0.30.0030.05015.72
5.0.20.0030.02715.72
5.0.10.0030.02315.72
5.0.00.0030.03315.72
4.4.90.0030.02315.72
4.4.80.0000.03315.72
4.4.70.0070.03015.72
4.4.60.0030.01315.72
4.4.50.0000.03015.72
4.4.40.0000.04315.72
4.4.30.0000.02315.72
4.4.20.0000.03715.72
4.4.10.0030.02015.72
4.4.00.0000.04015.72
4.3.110.0000.01715.72
4.3.100.0000.01715.72
4.3.90.0030.02015.72
4.3.80.0000.05315.72
4.3.70.0000.02315.72
4.3.60.0030.02315.72
4.3.50.0030.02715.72
4.3.40.0070.05015.72
4.3.30.0030.03015.72
4.3.20.0000.03715.72
4.3.10.0000.02315.72
4.3.00.0000.02015.72