3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php // Initial Configuration global $aHash; $i = 0; $tmp = ''; while($i < 10000) { $tmp .= 'a'; ++$i; } $aHash = array_fill(100000000000000000000000, 100, $tmp); unset($i, $tmp); reset($aHash); $size = sizeOf($aHash); for ($i=0; $i<$size; $i++) $tmp[] = $aHash[$i];

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)
7.2.60.0070.00716.82
7.2.00.0100.00319.44
7.1.200.0030.00915.84
7.1.100.0000.01318.30
7.1.70.0030.00516.92
7.1.60.0130.01319.33
7.1.50.0070.01417.04
7.1.00.0000.08022.24
7.0.200.0030.00516.42
7.0.140.0000.07721.90
7.0.100.0200.07720.05
7.0.90.0070.05319.99
7.0.80.0100.03719.99
7.0.70.0070.05020.02
7.0.60.0130.05719.87
7.0.50.0070.05020.25
7.0.40.0170.06720.13
7.0.30.0070.07020.13
7.0.20.0100.09020.07
7.0.10.0130.07320.07
7.0.00.0070.09020.02
5.6.280.0030.07721.25
5.6.250.0070.08020.77
5.6.240.0070.06320.82
5.6.230.0070.08320.81
5.6.220.0100.05720.64
5.6.210.0070.06720.61
5.6.200.0070.06321.20
5.6.190.0100.06721.26
5.6.180.0100.05021.25
5.6.170.0130.08321.16
5.6.160.0200.07721.20
5.6.150.0170.07021.14
5.6.140.0130.07721.23
5.6.130.0130.08721.16
5.6.120.0030.06021.18
5.6.110.0070.07721.13
5.6.100.0030.08321.25
5.6.90.0130.08721.07
5.6.80.0130.07020.43
5.6.70.0130.05720.61
5.6.60.0000.09020.52
5.6.50.0070.07020.53
5.6.40.0130.08020.50
5.6.30.0130.03320.47
5.6.20.0170.07020.64
5.6.10.0130.08020.50
5.6.00.0130.07320.43
5.5.380.0100.08320.69
5.5.370.0100.08320.58
5.5.360.0170.03720.57
5.5.350.0070.08020.54
5.5.340.0130.07320.89
5.5.330.0100.07021.06
5.5.320.0100.08021.04
5.5.310.0070.04020.98
5.5.300.0100.07020.98
5.5.290.0130.08021.04
5.5.280.0030.08720.89
5.5.270.0130.08321.06
5.5.260.0100.06720.96
5.5.250.0070.06020.88
5.5.240.0000.04720.49
5.5.230.0170.06720.45
5.5.220.0070.08320.45
5.5.210.0100.07720.39
5.5.200.0300.05320.38
5.5.190.0100.09020.34
5.5.180.0100.07320.28
5.5.160.0100.06020.25
5.5.150.0030.08720.32
5.5.140.0130.07720.33
5.5.130.0100.07320.34
5.5.120.0130.07020.41
5.5.110.0100.06720.34
5.5.100.0030.06020.27
5.5.90.0130.07020.13
5.5.80.0070.08720.19
5.5.70.0130.06320.22
5.5.60.0070.06320.25
5.5.50.0070.08020.22
5.5.40.0030.08020.26
5.5.30.0100.07020.26
5.5.20.0100.07320.33
5.5.10.0030.07020.23
5.5.00.0100.06320.14
5.4.450.0100.07719.40
5.4.440.0100.05719.45
5.4.430.0070.06019.42
5.4.420.0030.09019.45
5.4.410.0070.08019.34
5.4.400.0030.08318.97
5.4.390.0100.07718.94
5.4.380.0130.07719.03
5.4.370.0100.07319.09
5.4.360.0100.07018.96
5.4.350.0130.06019.10
5.4.340.0070.07318.95
5.4.320.0130.04319.02
5.4.310.0100.07718.95
5.4.300.0200.05319.23
5.4.290.0100.07319.00
5.4.280.0030.05019.12
5.4.270.0100.07318.96
5.4.260.0130.05719.17
5.4.250.0170.06019.11
5.4.240.0070.06719.14
5.4.230.0130.06719.05
5.4.220.0000.08019.07
5.4.210.0030.08019.09
5.4.200.0100.05319.05
5.4.190.0070.06719.09
5.4.180.0130.07319.21
5.4.170.0030.08019.02
5.4.160.0100.04318.94
5.4.150.0070.07718.92
5.4.140.0070.04716.34
5.4.130.0100.06316.32
5.4.120.0130.07316.32
5.4.110.0070.07316.32
5.4.100.0100.06716.29
5.4.90.0070.04316.31
5.4.80.0130.07016.25
5.4.70.0070.04016.42
5.4.60.0170.06716.42
5.4.50.0070.07016.28
5.4.40.0030.06316.39
5.4.30.0070.06716.32
5.4.20.0130.06016.38
5.4.10.0100.06316.32
5.4.00.0070.07015.83
5.3.290.0100.07314.70
5.3.280.0070.06314.57
5.3.270.0070.07714.58
5.3.260.0070.07714.62
5.3.250.0070.07314.59
5.3.240.0070.07714.57
5.3.230.0030.08014.61
5.3.220.0070.06314.59
5.3.210.0000.08714.55
5.3.200.0130.07314.58
5.3.190.0070.08014.45
5.3.180.0030.08014.57
5.3.170.0000.05314.55
5.3.160.0100.06714.45
5.3.150.0070.07714.57
5.3.140.0170.07014.44
5.3.130.0100.05714.48
5.3.120.0070.07714.54
5.3.110.0030.06314.54
5.3.100.0100.03313.89
5.3.90.0070.07014.04
5.3.80.0030.06014.03
5.3.70.0000.07714.02
5.3.60.0130.06713.96
5.3.50.0000.07713.93
5.3.40.0130.07313.88
5.3.30.0100.07313.87
5.3.20.0070.07313.72
5.3.10.0070.07013.59
5.3.00.0000.06713.64
5.2.170.0100.04712.37
5.2.160.0000.05312.37
5.2.150.0030.05712.37
5.2.140.0030.06012.37
5.2.130.0100.05712.37
5.2.120.0030.06012.37
5.2.110.0030.05712.37
5.2.100.0030.06312.37
5.2.90.0070.05312.37
5.2.80.0000.04312.37
5.2.70.0100.05712.37
5.2.60.0070.05312.37
5.2.50.0070.04012.37
5.2.40.0030.04712.37
5.2.30.0100.05312.37
5.2.20.0070.06312.37
5.2.10.0100.05312.37
5.2.00.0100.05712.37
5.1.60.0030.04712.37
5.1.50.0070.05012.37
5.1.40.0030.03712.37
5.1.30.0100.04312.37
5.1.20.0030.02712.37
5.1.10.0130.04712.37
5.1.00.0100.05012.37
5.0.50.0000.04712.37
5.0.40.0000.04012.37
5.0.30.0030.06312.37
5.0.20.0070.04312.37
5.0.10.0070.04312.37
5.0.00.0070.06312.37
4.4.90.0030.03712.37
4.4.80.0030.03012.37
4.4.70.0030.02712.37
4.4.60.0000.02012.37
4.4.50.0000.04012.37
4.4.40.0000.05012.37
4.4.30.0000.04012.37
4.4.20.0030.03712.37
4.4.10.0030.03712.37
4.4.00.0030.04012.37
4.3.110.0030.02712.37
4.3.100.0000.04012.37
4.3.90.0070.03312.37
4.3.80.0070.05312.37
4.3.70.0030.03712.37
4.3.60.0030.02712.37
4.3.50.0030.03712.37
4.3.40.0000.04712.37
4.3.30.0000.02312.37
4.3.20.0000.01712.37
4.3.10.0030.03312.37
4.3.00.0000.02312.37