3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $match = preg_replace_callback(array('/\d/', '/a/'), function($matches)use(&$result){ $result[] = $matches; return '_'; }, 'ada2d1', 1); print_r($match);

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)
7.2.60.0070.00716.86
7.2.00.0060.00919.63
7.1.200.0070.00315.98
7.1.100.0040.00818.59
7.1.70.0000.00717.13
7.1.60.0070.01619.46
7.1.50.0100.01617.28
7.1.00.0030.07722.59
7.0.200.0070.00016.60
7.0.140.0030.07321.95
7.0.110.0070.04319.92
7.0.100.0030.04020.09
7.0.90.0070.04319.95
7.0.80.0130.07019.91
7.0.70.0070.04719.95
7.0.60.0100.07019.96
7.0.50.0130.04320.09
7.0.40.0070.08719.74
7.0.30.0100.07319.78
7.0.20.0070.08719.81
7.0.10.0070.07019.75
7.0.00.0030.04319.74
5.6.280.0000.07320.82
5.6.260.0030.06320.74
5.6.250.0130.07720.70
5.6.240.0030.08720.70
5.6.230.0030.05020.66
5.6.220.0070.07720.65
5.6.210.0030.07020.73
5.6.200.0030.08320.63
5.6.190.0030.06020.64
5.6.180.0070.08320.64
5.6.170.0100.07020.62
5.6.160.0170.08720.66
5.6.150.0030.07720.59
5.6.140.0000.08320.57
5.6.130.0070.08020.55
5.6.120.0000.08320.70
5.6.110.0100.05720.57
5.6.100.0030.08320.84
5.6.90.0030.08020.68
5.6.80.0030.07720.24
5.6.70.0070.08019.92
5.6.60.0100.04320.08
5.6.50.0070.04319.97
5.6.40.0100.06319.91
5.6.30.0070.07020.00
5.6.20.0070.07719.97
5.6.10.0100.05320.21
5.6.00.0070.03319.97
5.5.380.0070.03017.70
5.5.370.0170.02317.56
5.5.360.0100.06317.68
5.5.350.0100.07717.47
5.5.340.0070.05018.13
5.5.330.0070.07317.80
5.5.320.0100.08017.93
5.5.310.0130.04018.25
5.5.300.0130.04017.95
5.5.290.0130.07718.09
5.5.280.0070.04318.10
5.5.270.0000.05018.04
5.5.260.0130.04017.90
5.5.250.0100.04317.73
5.5.240.0070.07717.30
5.5.230.0130.07717.43
5.5.220.0000.07317.28
5.5.210.0070.05717.43
5.5.200.0030.08017.29
5.5.190.0130.04717.49
5.5.180.0130.07017.27
5.5.160.0130.07017.28
5.5.150.0070.06317.18
5.5.140.0030.08317.40
5.5.130.0100.07317.18
5.5.120.0070.07017.28
5.5.110.0100.07317.30
5.5.100.0130.06317.09
5.5.90.0070.07017.16
5.5.80.0100.07017.18
5.5.70.0070.07717.34
5.5.60.0000.08717.29
5.5.50.0030.06317.46
5.5.40.0070.04317.20
5.5.30.0000.08317.16
5.5.20.0100.04317.07
5.5.10.0070.07317.29
5.5.00.0100.06317.36
5.4.450.0130.06319.49
5.4.440.0030.09019.33
5.4.430.0000.08319.48
5.4.420.0100.07719.31
5.4.410.0100.05319.29
5.4.400.0200.05719.32
5.4.390.0100.07719.09
5.4.380.0030.04719.14
5.4.370.0130.07019.19
5.4.360.0070.05719.17
5.4.350.0100.04019.14
5.4.340.0030.04719.31
5.4.320.0100.06019.00
5.4.310.0030.03719.00
5.4.300.0070.05719.24
5.4.290.0070.04018.96
5.4.280.0030.08719.14
5.4.270.0070.03719.25
5.4.260.0030.06319.17
5.4.250.0000.06719.18
5.4.240.0100.07019.18
5.4.230.0070.07319.00
5.4.220.0100.07019.16
5.4.210.0130.06719.18
5.4.200.0070.07019.16
5.4.190.0100.04719.00
5.4.180.0100.08019.00
5.4.170.0130.07019.25
5.4.160.0130.04319.07
5.4.150.0030.07319.21
5.4.140.0070.07716.34
5.4.130.0100.06716.34
5.4.120.0070.07016.43
5.4.110.0030.07716.44
5.4.100.0100.04016.41
5.4.90.0070.07016.65
5.4.80.0070.04016.39
5.4.70.0070.06316.24
5.4.60.0070.07016.63
5.4.50.0000.07016.64
5.4.40.0070.06716.39
5.4.30.0070.07316.23
5.4.20.0030.04016.39
5.4.10.0000.04016.54
5.4.00.0100.06315.74
5.3.290.0100.07314.66
5.3.280.0100.06314.57
5.3.270.0070.07714.59
5.3.260.0070.08014.73
5.3.250.0100.07014.83
5.3.240.0100.06714.62
5.3.230.0070.07714.62
5.3.220.0130.06714.69
5.3.210.0030.05314.69
5.3.200.0100.03714.42
5.3.190.0070.07314.57
5.3.180.0070.06314.58
5.3.170.0130.04714.56
5.3.160.0130.04314.58
5.3.150.0070.07314.70
5.3.140.0070.07314.68
5.3.130.0070.07014.54
5.3.120.0100.07014.68
5.3.110.0000.05014.54
5.3.100.0100.07014.06
5.3.90.0000.08013.98
5.3.80.0100.07013.99
5.3.70.0070.06014.03
5.3.60.0030.07714.14
5.3.50.0070.05313.96
5.3.40.0070.06714.03
5.3.30.0070.03013.76
5.3.20.0100.06013.92
5.3.10.0030.06313.51
5.3.00.0030.07313.60
5.2.170.0030.02712.28
5.2.160.0030.06012.28
5.2.150.0100.05312.28
5.2.140.0030.07012.28
5.2.130.0030.06012.28
5.2.120.0070.02312.28
5.2.110.0000.03012.28
5.2.100.0000.04312.28
5.2.90.0000.03312.28
5.2.80.0070.05312.28
5.2.70.0000.03712.28
5.2.60.0070.06012.28
5.2.50.0070.05312.28
5.2.40.0100.03312.28
5.2.30.0000.03312.28
5.2.20.0070.04712.28
5.2.10.0030.06312.28
5.2.00.0100.05012.28
5.1.60.0030.05312.28
5.1.50.0070.02712.28
5.1.40.0030.02712.28
5.1.30.0000.05712.28
5.1.20.0030.05312.28
5.1.10.0130.04712.28
5.1.00.0030.03012.28
5.0.50.0070.04312.28
5.0.40.0030.03312.28
5.0.30.0030.06312.28
5.0.20.0100.03712.28
5.0.10.0030.03712.28
5.0.00.0070.06012.28
4.4.90.0000.03712.28
4.4.80.0000.03712.28
4.4.70.0030.02012.28
4.4.60.0000.03712.28
4.4.50.0000.03712.28
4.4.40.0030.05012.28
4.4.30.0000.02012.28
4.4.20.0000.03712.28
4.4.10.0030.01712.28
4.4.00.0000.05312.28
4.3.110.0000.03312.28
4.3.100.0070.02312.28
4.3.90.0070.01312.28
4.3.80.0070.02312.28
4.3.70.0000.03312.28
4.3.60.0030.03312.28
4.3.50.0100.02312.28
4.3.40.0070.03312.28
4.3.30.0000.01712.28
4.3.20.0000.03312.28
4.3.10.0000.02312.28
4.3.00.0000.02012.28