3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php class Collection implements IteratorAggregate { public function __construct(array $data) { $this->data = $data; } public function getIterator() { krsort($this->data); return new RecursiveIteratorIterator(new RecursiveArrayIterator($this->data)); } } $c = new Collection([ 10 => ['a', 'b'], 20 => ['c'], ]); var_dump(iterator_to_array($c));

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)
7.3.10.0110.00416.70
7.3.00.0090.00316.39
7.2.130.0100.00716.86
7.2.120.0060.00316.96
7.2.110.0100.00717.14
7.2.100.0130.00316.79
7.2.90.0070.00316.93
7.2.80.0030.01116.81
7.2.70.0000.01016.57
7.2.60.0070.01116.99
7.2.50.0080.00617.10
7.2.40.0070.01016.85
7.2.30.0050.00516.91
7.2.20.0060.00617.09
7.2.10.0100.00316.88
7.2.00.0050.01018.08
7.1.250.0070.00715.52
7.1.100.0080.00318.17
7.1.70.0090.00017.27
7.1.60.0040.01919.70
7.1.50.0190.00016.92
7.1.00.0130.06722.48
7.0.200.1350.00316.53
7.0.140.0000.07022.21
7.0.110.0100.06321.78
7.0.100.0030.08721.83
7.0.90.0000.08721.82
7.0.80.0070.08321.72
7.0.70.0070.05021.67
7.0.60.0030.08021.64
7.0.50.0170.06722.19
7.0.40.0070.07720.07
7.0.30.0000.08320.23
7.0.20.0030.07320.07
7.0.10.0100.07020.09
7.0.00.0000.08320.07
5.6.280.0030.07021.11
5.6.260.0100.07020.55
5.6.250.0030.05020.61
5.6.240.0070.07720.81
5.6.230.0070.06720.65
5.6.220.0030.08020.63
5.6.210.0130.05720.68
5.6.200.0030.08721.04
5.6.190.0030.07721.07
5.6.180.0100.07021.03
5.6.170.0000.05321.11
5.6.160.0070.07721.25
5.6.150.0030.08320.91
5.6.140.0100.07721.04
5.6.130.0170.06321.22
5.6.120.0030.08321.04
5.6.110.0070.08721.03
5.6.100.0030.08020.97
5.6.90.0070.09720.95
5.6.80.0030.04720.30
5.6.70.0030.07720.48
5.6.60.0100.06720.51
5.6.50.0000.05720.61
5.6.40.0030.05020.43
5.6.30.0070.03720.37
5.6.20.0000.04020.45
5.6.10.0000.04020.24
5.6.00.0070.03020.43
5.5.380.0100.07720.21
5.5.370.0070.07320.32
5.5.360.0070.05720.49
5.5.350.0030.09020.40
5.5.340.0100.07320.70
5.5.330.0070.07020.99
5.5.320.0070.07020.75
5.5.310.0030.08320.99
5.5.300.0000.07720.66
5.5.290.0100.08020.76
5.5.280.0100.07720.76
5.5.270.0070.07720.76
5.5.260.0070.05320.85
5.5.250.0070.07020.53
5.5.240.0100.07320.21
5.5.230.0000.07720.20
5.5.220.0130.06720.30
5.5.210.0070.06320.23
5.5.200.0070.04020.34
5.5.190.0030.04020.21
5.5.180.0030.04020.28
5.5.160.0000.04320.29
5.5.150.0030.03720.03
5.5.140.0000.04020.20
5.5.130.0030.03720.08
5.5.120.0030.03720.14
5.5.110.0000.03720.18
5.5.100.0070.03319.89
5.5.90.0000.03720.00
5.5.80.0070.05320.09
5.5.70.0000.05720.19
5.5.60.0030.04019.96
5.5.50.0000.05719.96
5.5.40.0030.07020.08
5.5.30.0000.05320.02
5.5.20.0000.04319.98
5.5.10.0030.03720.07
5.5.00.0000.04319.98
5.4.450.0100.07719.57
5.4.440.0000.08319.26
5.4.430.0070.07319.33
5.4.420.0030.08019.66
5.4.410.0030.07719.14
5.4.400.0000.04719.04
5.4.390.0000.07719.09
5.4.380.0030.07318.99
5.4.370.0070.03719.01
5.4.360.0030.04018.99
5.4.350.0030.04318.99
5.4.340.0030.03718.99
5.4.320.0000.04019.22
5.4.310.0000.03719.03
5.4.300.0000.03719.01
5.4.290.0000.04319.01
5.4.280.0000.04018.95
5.4.270.0070.05019.00
5.4.260.0000.04319.00
5.4.250.0030.04019.00
5.4.240.0070.03319.03
5.4.230.0000.06719.02
5.4.220.0070.04019.02
5.4.210.0000.03719.18
5.4.200.0030.05319.02
5.4.190.0000.03719.17
5.4.180.0070.05019.00
5.4.170.0000.03719.13
5.4.160.0000.04019.16
5.4.150.0000.04018.99
5.4.140.0030.03316.45
5.4.130.0000.03716.48
5.4.120.0000.03716.48
5.4.110.0000.04016.61
5.4.100.0000.03316.36
5.4.90.0000.03716.50
5.4.80.0000.03716.45
5.4.70.0030.03316.46
5.4.60.0070.05016.24
5.4.50.0000.07716.52
5.4.40.0000.07016.57
5.4.30.0000.04016.30
5.4.20.0030.04016.43
5.4.10.0030.03716.40
5.4.00.0000.04715.69
5.3.290.0000.03714.69
5.3.280.0000.05314.59
5.3.270.0030.03314.84
5.3.260.0000.04014.61
5.3.250.0000.04314.76
5.3.240.0030.05014.74
5.3.230.0000.03714.63
5.3.220.0000.03714.57
5.3.210.0030.03314.55
5.3.200.0000.03714.66
5.3.190.0000.04714.56
5.3.180.0000.04314.59
5.3.170.0000.04014.59
5.3.160.0000.03314.43
5.3.150.0000.03314.59
5.3.140.0030.03314.59
5.3.130.0070.03314.55
5.3.120.0000.03714.69
5.3.110.0000.06014.53
5.3.100.0030.04014.27
5.3.90.0000.07314.04
5.3.80.0070.05714.14
5.3.70.0000.03714.25
5.3.60.0000.06314.14
5.3.50.0070.06713.98
5.3.40.0000.06014.09
5.3.30.0030.06713.98
5.3.20.0000.07713.70
5.3.10.0070.06313.64
5.3.00.0000.05713.66
5.2.170.0000.06713.42
5.2.160.0030.05713.42
5.2.150.0070.03013.42
5.2.140.0000.03313.42
5.2.130.0030.06313.42
5.2.120.0030.06013.42
5.2.110.0030.06013.42
5.2.100.0070.05313.42
5.2.90.0070.06013.42
5.2.80.0000.05713.42
5.2.70.0030.06013.42
5.2.60.0000.06313.42
5.2.50.0030.05713.42
5.2.40.0070.05313.42
5.2.30.0030.06013.42
5.2.20.0030.06713.42
5.2.10.0000.06313.42
5.2.00.0000.06013.42
5.1.60.0070.04013.42
5.1.50.0030.05013.42
5.1.40.0070.05013.42
5.1.30.0000.05313.42
5.1.20.0030.05313.42
5.1.10.0000.05713.42
5.1.00.0030.05013.42
5.0.50.0000.04713.42
5.0.40.0000.04313.42
5.0.30.0070.05713.42
5.0.20.0070.03713.42
5.0.10.0070.03713.42
5.0.00.0000.06313.42
4.4.90.0000.03313.42
4.4.80.0000.03713.42
4.4.70.0030.02713.42
4.4.60.0030.03013.42
4.4.50.0000.03713.42
4.4.40.0000.05313.42
4.4.30.0000.03713.42
4.4.20.0030.03313.42
4.4.10.0000.03713.42
4.4.00.0000.05713.42
4.3.110.0000.03713.42
4.3.100.0000.02313.42
4.3.90.0000.03313.42
4.3.80.0000.05313.42
4.3.70.0030.03013.42
4.3.60.0000.03713.42
4.3.50.0000.03313.42
4.3.40.0000.05313.42
4.3.30.0030.03013.42
4.3.20.0030.03013.42
4.3.10.0030.03313.42
4.3.00.0000.03713.42