3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $subject = "3rd from last"; preg_match('~^(?P<index>([0-9]+))rd|st from (?P<position>(last|end|start|beginning)+)$~', $subject, $matches); var_dump($matches);

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)
7.2.00.0030.01319.21
7.1.100.0050.00518.21
7.1.70.0110.00417.34
7.1.60.0030.02119.46
7.1.50.0080.01117.03
7.1.00.0100.07022.34
7.0.200.0040.00416.68
7.0.140.0070.07021.93
7.0.70.0070.05721.69
7.0.60.0100.08021.73
7.0.50.0070.07722.14
7.0.40.0100.07720.09
7.0.30.0000.04720.04
7.0.20.0130.08020.03
7.0.10.0070.05320.12
7.0.00.0100.07719.95
5.6.280.0070.07021.06
5.6.220.0030.06720.55
5.6.210.0030.08320.66
5.6.200.0100.08321.03
5.6.190.0070.07321.02
5.6.180.0070.07721.05
5.6.170.0070.06321.07
5.6.160.0030.08320.94
5.6.150.0070.08021.10
5.6.140.0030.09021.10
5.6.130.0030.05321.05
5.6.120.0100.07721.00
5.6.110.0000.06721.04
5.6.100.0070.08321.11
5.6.90.0000.04721.07
5.6.80.0030.04020.48
5.6.70.0030.05720.41
5.6.60.0070.04020.44
5.6.50.0100.03320.48
5.6.40.0000.04720.45
5.6.30.0030.04020.36
5.6.20.0000.04320.48
5.6.10.0030.04020.46
5.6.00.0070.03720.38
5.5.360.0000.08720.36
5.5.350.0100.07320.41
5.5.340.0200.07320.75
5.5.330.0000.07320.91
5.5.320.0100.08320.86
5.5.310.0070.05320.87
5.5.300.0030.07720.73
5.5.290.0000.08720.79
5.5.280.0100.06720.85
5.5.270.0070.05320.90
5.5.260.0130.03720.75
5.5.250.0000.05020.60
5.5.240.0000.04720.11
5.5.230.0000.04320.17
5.5.220.0000.04320.25
5.5.210.0000.04020.20
5.5.200.0000.04320.20
5.5.190.0030.04020.07
5.5.180.0070.05320.23
5.5.160.0030.04020.11
5.5.150.0070.04320.09
5.5.140.0030.07720.27
5.5.130.0030.04720.14
5.5.120.0030.03720.06
5.5.110.0070.03320.20
5.5.100.0070.03320.07
5.5.90.0030.05320.06
5.5.80.0000.04720.11
5.5.70.0030.04020.14
5.5.60.0000.03319.95
5.5.50.0070.03320.13
5.5.40.0070.02720.09
5.5.30.0100.02720.06
5.5.20.0030.03720.13
5.5.10.0030.03720.12
5.5.00.0070.03720.04
5.4.450.0000.05319.37
5.4.440.0000.06319.35
5.4.430.0030.07319.48
5.4.420.0000.07719.22
5.4.410.0030.04019.14
5.4.400.0030.03719.13
5.4.390.0000.04018.81
5.4.380.0000.04019.11
5.4.370.0000.04019.02
5.4.360.0030.04019.03
5.4.350.0070.03718.98
5.4.340.0000.04019.11
5.4.320.0030.04019.07
5.4.310.0000.06319.23
5.4.300.0000.06719.07
5.4.290.0030.05718.96
5.4.280.0030.04019.02
5.4.270.0070.07318.90
5.4.260.0000.05019.09
5.4.250.0000.07719.02
5.4.240.0070.02719.09
5.4.230.0070.04019.24
5.4.220.0000.04018.90
5.4.210.0000.03718.80
5.4.200.0030.03319.06
5.4.190.0030.03718.97
5.4.180.0000.05319.07
5.4.170.0070.03018.89
5.4.160.0070.02719.02
5.4.150.0030.03719.12
5.4.140.0070.03316.35
5.4.130.0070.04316.36
5.4.120.0030.03316.32
5.4.110.0000.03316.41
5.4.100.0070.05016.34
5.4.90.0030.03316.31
5.4.80.0000.07316.42
5.4.70.0170.06316.41
5.4.60.0070.07316.45
5.4.50.0000.05716.42
5.4.40.0070.05716.46
5.4.30.0030.07316.30
5.4.20.0070.07316.32
5.4.10.0030.07316.20
5.4.00.0030.03715.71
5.3.290.0000.04314.51
5.3.280.0000.04314.54
5.3.270.0000.05714.51
5.3.260.0030.03014.42
5.3.250.0030.03014.59
5.3.240.0070.03014.59
5.3.230.0000.04014.58
5.3.220.0070.04314.55
5.3.210.0070.02714.39
5.3.200.0030.04014.54
5.3.190.0030.04714.55
5.3.180.0100.02314.55
5.3.170.0030.07014.39
5.3.160.0100.07014.52
5.3.150.0070.07314.56
5.3.140.0030.07714.46
5.3.130.0000.07714.40
5.3.120.0070.07314.38
5.3.110.0030.05314.50
5.3.100.0030.05313.99
5.3.90.0130.07013.83
5.3.80.0100.06714.02
5.3.70.0200.06713.78
5.3.60.0070.06313.86
5.3.50.0000.07713.90
5.3.40.0030.07313.88
5.3.30.0200.05313.91
5.3.20.0100.06713.46
5.3.10.0000.05313.64
5.3.00.0000.05013.59
5.2.170.0030.06012.37
5.2.160.0030.05012.37
5.2.150.0070.06712.37
5.2.140.0100.05712.37
5.2.130.0000.06012.37
5.2.120.0000.06712.37
5.2.110.0000.03712.37
5.2.100.0030.04712.37
5.2.90.0000.03712.37
5.2.80.0030.06312.37
5.2.70.0030.04712.37
5.2.60.0000.05712.37
5.2.50.0030.06712.37
5.2.40.0030.05012.37
5.2.30.0000.05012.37
5.2.20.0000.03312.37
5.2.10.0030.06312.37
5.2.00.0070.06012.37
5.1.60.0000.05712.37
5.1.50.0070.04712.37
5.1.40.0030.03012.37
5.1.30.0000.05712.37
5.1.20.0000.03712.37
5.1.10.0070.05012.37
5.1.00.0000.06012.37
5.0.50.0070.04312.37
5.0.40.0030.04312.37
5.0.30.0030.06712.37
5.0.20.0000.04012.37
5.0.10.0170.03712.37
5.0.00.0000.06712.37
4.4.90.0000.04012.37
4.4.80.0000.03312.37
4.4.70.0030.02312.37
4.4.60.0000.03312.37
4.4.50.0030.02012.37
4.4.40.0000.04312.37
4.4.30.0000.03312.37
4.4.20.0000.02012.37
4.4.10.0000.03712.37
4.4.00.0000.05312.37
4.3.110.0030.02312.37
4.3.100.0000.03312.37
4.3.90.0070.02712.37
4.3.80.0000.05712.37
4.3.70.0000.03712.37
4.3.60.0030.03712.37
4.3.50.0070.02312.37
4.3.40.0030.03312.37
4.3.30.0000.02012.37
4.3.20.0030.02712.37
4.3.10.0000.04012.37
4.3.00.0070.02712.37