3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $ar1 = array(); for($i = 0; $i < 1000; $i++){ $ar1[] = 'a' . $i; } unset($ar1['775']); unset($ar1['175']); unset($ar1['75']);

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)
7.3.0rc40.0480.01098.97
7.3.0rc30.0070.00716.71
7.3.0beta10.0050.00512.57
7.3.0alpha10.0140.00012.59
7.2.60.0100.00316.85
7.2.00.0070.01119.48
7.1.200.0090.00615.88
7.1.100.0040.00717.73
7.1.70.0000.01017.13
7.1.60.0140.01119.08
7.1.50.0150.00917.02
7.1.00.0070.03022.54
7.0.200.0120.00516.79
7.0.140.0170.06022.18
7.0.70.0100.08319.94
7.0.60.0070.08019.98
7.0.50.0130.07020.31
7.0.40.0070.08720.00
7.0.30.0170.07719.95
7.0.20.0070.08320.09
7.0.10.0000.09720.07
7.0.00.0130.06020.04
5.6.280.0030.07320.95
5.6.220.0130.06320.62
5.6.210.0130.08020.65
5.6.200.0100.08321.15
5.6.190.0030.04321.11
5.6.180.0130.08321.05
5.6.170.0070.07721.08
5.6.160.0070.07321.07
5.6.150.0070.06021.05
5.6.140.0030.08721.20
5.6.130.0100.08021.09
5.6.120.0030.09021.16
5.6.110.0030.05321.16
5.6.100.0070.07321.06
5.6.90.0070.06320.95
5.6.80.0070.08720.43
5.6.70.0030.04720.45
5.6.60.0070.03720.52
5.6.50.0100.06720.51
5.6.40.0070.03720.44
5.6.30.0070.04320.46
5.6.20.0070.06020.44
5.6.10.0000.04320.52
5.6.00.0200.05020.33
5.5.360.0030.04720.53
5.5.350.0100.07720.46
5.5.340.0170.07720.95
5.5.330.0030.04320.96
5.5.320.0030.09020.89
5.5.310.0130.07720.95
5.5.300.0130.07020.90
5.5.290.0000.05720.79
5.5.280.0100.07720.67
5.5.270.0100.04720.83
5.5.260.0100.08020.82
5.5.250.0200.07020.64
5.5.240.0070.07320.05
5.5.230.0030.08320.21
5.5.220.0100.07720.31
5.5.210.0100.05320.27
5.5.200.0070.05720.28
5.5.190.0030.04020.27
5.5.180.0030.07720.29
5.5.160.0070.07320.12
5.5.150.0130.07720.26
5.5.140.0170.07020.25
5.5.130.0030.06020.29
5.5.120.0030.07720.14
5.5.110.0170.04720.13
5.5.100.0000.08320.17
5.5.90.0070.08320.04
5.5.80.0070.07320.10
5.5.70.0100.07719.97
5.5.60.0070.08320.16
5.5.50.0030.08020.09
5.5.40.0070.06320.06
5.5.30.0070.08720.18
5.5.20.0200.06720.09
5.5.10.0130.07020.08
5.5.00.0100.07720.06
5.4.450.0070.08019.42
5.4.440.0030.08019.37
5.4.430.0130.07719.38
5.4.420.0170.06719.27
5.4.410.0070.05319.25
5.4.400.0200.06318.90
5.4.390.0030.04718.81
5.4.380.0070.07319.05
5.4.370.0100.07318.96
5.4.360.0070.04319.14
5.4.350.0100.07719.04
5.4.340.0000.08018.98
5.4.320.0070.08019.03
5.4.310.0030.03719.07
5.4.300.0000.04019.22
5.4.290.0130.02719.05
5.4.280.0070.03318.78
5.4.270.0070.08318.90
5.4.260.0000.08719.07
5.4.250.0100.07719.11
5.4.240.0130.06019.01
5.4.230.0100.07319.12
5.4.220.0070.05019.09
5.4.210.0030.04318.95
5.4.200.0030.06718.97
5.4.190.0070.07718.89
5.4.180.0030.07319.22
5.4.170.0030.08019.11
5.4.160.0070.07319.12
5.4.150.0030.07718.76
5.4.140.0030.05016.34
5.4.130.0100.07316.41
5.4.120.0000.08316.41
5.4.110.0070.07716.26
5.4.100.0100.07316.49
5.4.90.0030.06016.40
5.4.80.0070.05716.41
5.4.70.0100.07016.25
5.4.60.0030.07716.20
5.4.50.0070.07716.37
5.4.40.0100.07316.39
5.4.30.0130.06016.24
5.4.20.0100.07316.45
5.4.10.0100.07716.24
5.4.00.0030.07315.77
5.3.290.0030.04014.82
5.3.280.0130.03314.61
5.3.270.0030.08314.77
5.3.260.0030.07314.73
5.3.250.0000.08314.75
5.3.240.0030.08014.73
5.3.230.0000.07014.75
5.3.220.0030.07014.73
5.3.210.0030.08014.72
5.3.200.0030.08014.57
5.3.190.0130.04314.72
5.3.180.0030.05314.58
5.3.170.0130.07314.70
5.3.160.0100.05714.69
5.3.150.0070.04314.61
5.3.140.0030.04714.65
5.3.130.0130.07314.56
5.3.120.0070.08014.70
5.3.110.0070.06314.71
5.3.100.0130.07014.06
5.3.90.0000.08014.20
5.3.80.0000.08314.04
5.3.70.0100.07314.18
5.3.60.0030.08013.93
5.3.50.0100.07314.10
5.3.40.0030.08013.96
5.3.30.0130.06714.07
5.3.20.0000.08313.86
5.3.10.0130.06713.77
5.3.00.0100.05013.65
5.2.170.0030.06712.27
5.2.160.0030.06312.27
5.2.150.0000.04712.27
5.2.140.0070.06012.27
5.2.130.0200.05012.27
5.2.120.0030.06712.27
5.2.110.0070.06012.27
5.2.100.0100.05712.27
5.2.90.0030.06712.27
5.2.80.0000.07012.27
5.2.70.0070.05012.27
5.2.60.0030.06712.27
5.2.50.0130.04712.27
5.2.40.0070.05312.27
5.2.30.0030.06712.27
5.2.20.0070.06312.27
5.2.10.0100.05312.27
5.2.00.0030.06012.27
5.1.60.0000.04312.27
5.1.50.0030.04712.27
5.1.40.0000.05012.27
5.1.30.0170.04312.27
5.1.20.0030.06012.27
5.1.10.0000.05712.27
5.1.00.0000.05712.27
5.0.50.0070.04312.27
5.0.40.0030.04312.27
5.0.30.0100.05712.27
5.0.20.0030.03312.27
5.0.10.0070.04012.27
5.0.00.0030.05312.27
4.4.90.0030.02312.27
4.4.80.0070.03312.27
4.4.70.0000.02312.27
4.4.60.0030.03712.27
4.4.50.0070.03312.27
4.4.40.0070.05012.27
4.4.30.0000.04012.27
4.4.20.0030.03312.27
4.4.10.0000.03712.27
4.4.00.0000.05012.27
4.3.110.0000.03712.27
4.3.100.0000.03312.27
4.3.90.0000.02712.27
4.3.80.0030.05012.27
4.3.70.0000.02712.27
4.3.60.0030.02012.27
4.3.50.0000.02312.27
4.3.40.0070.04312.27
4.3.30.0000.01712.27
4.3.20.0030.01712.27
4.3.10.0000.03712.27
4.3.00.0000.03012.27