3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $x = ''; while (strlen($x) < 255) { $x .= 'x'; }

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)
7.2.60.0040.01116.73
7.2.00.0150.00419.24
7.1.200.0060.00615.63
7.1.100.0000.01118.06
7.1.70.0000.01617.14
7.1.60.0000.01017.06
7.1.50.0000.01016.65
7.1.00.0030.07722.30
7.0.200.0090.00616.60
7.0.140.0030.08322.15
7.0.100.0170.08319.92
7.0.90.0170.04319.89
7.0.80.0070.04019.88
7.0.70.0030.03719.89
7.0.60.0130.08019.95
7.0.50.0030.06720.38
7.0.40.0070.04020.18
7.0.30.0070.03320.08
7.0.20.0030.07720.10
7.0.10.0070.04320.06
7.0.00.0070.04020.02
5.6.280.0000.07721.09
5.6.250.0100.07720.48
5.6.240.0170.03720.59
5.6.230.0070.04020.70
5.6.220.0070.03720.57
5.6.210.0030.05320.55
5.6.200.0100.08321.16
5.6.190.0070.05721.07
5.6.180.0070.04021.04
5.6.170.0030.05321.01
5.6.160.0130.03021.07
5.6.150.0130.06720.98
5.6.140.0070.03721.12
5.6.130.0070.04021.16
5.6.120.0000.04721.05
5.6.110.0000.06021.04
5.6.100.0100.03721.07
5.6.90.0000.04720.99
5.6.80.0070.03720.31
5.6.70.0070.04020.46
5.6.60.0070.03720.50
5.6.50.0000.04320.42
5.6.40.0000.04320.29
5.6.30.0070.03720.40
5.6.20.0030.08320.41
5.6.10.0100.06020.36
5.6.00.0030.08320.34
5.5.380.0000.04320.40
5.5.370.0070.04020.31
5.5.360.0070.04020.38
5.5.350.0000.04320.41
5.5.340.0070.04720.87
5.5.330.0100.03020.90
5.5.320.0000.04020.79
5.5.310.0070.06320.77
5.5.300.0000.05320.90
5.5.290.0100.03320.88
5.5.280.0070.03720.76
5.5.270.0030.06020.74
5.5.260.0030.04320.90
5.5.250.0030.05320.57
5.5.240.0100.04320.30
5.5.230.0000.04320.29
5.5.220.0030.03720.28
5.5.210.0000.04320.15
5.5.200.0130.04720.09
5.5.190.0030.04020.17
5.5.180.0130.07320.25
5.5.160.0100.07720.25
5.5.150.0000.05320.24
5.5.140.0130.07320.13
5.5.130.0100.07720.20
5.5.120.0200.06020.25
5.5.110.0030.08020.13
5.5.100.0130.07019.97
5.5.90.0130.07019.97
5.5.80.0030.06720.06
5.5.70.0230.05719.93
5.5.60.0200.03320.13
5.5.50.0000.07019.99
5.5.40.0100.07720.07
5.5.30.0130.07019.98
5.5.20.0070.08320.04
5.5.10.0130.07320.02
5.5.00.0030.07320.11
5.4.450.0000.04319.36
5.4.440.0030.04019.46
5.4.430.0030.04019.32
5.4.420.0170.02719.15
5.4.410.0030.03319.42
5.4.400.0030.04018.91
5.4.390.0030.03719.23
5.4.380.0000.04318.95
5.4.370.0070.03019.23
5.4.360.0100.04319.05
5.4.350.0000.04018.96
5.4.340.0000.06018.79
5.4.320.0100.07318.81
5.4.310.0100.05319.07
5.4.300.0030.07318.94
5.4.290.0000.06319.17
5.4.280.0030.08019.16
5.4.270.0130.07319.24
5.4.260.0130.06718.98
5.4.250.0100.05718.78
5.4.240.0100.07318.98
5.4.230.0030.05718.93
5.4.220.0130.07018.98
5.4.210.0100.07018.77
5.4.200.0100.07719.12
5.4.190.0170.06319.09
5.4.180.0070.05719.05
5.4.170.0030.08018.80
5.4.160.0100.07719.09
5.4.150.0070.08019.10
5.4.140.0100.07316.24
5.4.130.0070.06716.29
5.4.120.0030.05016.31
5.4.110.0070.07316.26
5.4.100.0070.07316.36
5.4.90.0130.04316.32
5.4.80.0030.07716.32
5.4.70.0030.07016.22
5.4.60.0070.07016.28
5.4.50.0130.06716.31
5.4.40.0100.04716.19
5.4.30.0100.06716.38
5.4.20.0130.06316.28
5.4.10.0070.07716.40
5.4.00.0130.05715.74
5.3.290.0070.07014.57
5.3.280.0100.05714.50
5.3.270.0030.05314.45
5.3.260.0030.07714.57
5.3.250.0100.07714.59
5.3.240.0030.06714.59
5.3.230.0130.06714.57
5.3.220.0100.08014.55
5.3.210.0100.07014.38
5.3.200.0100.04714.54
5.3.190.0170.06314.55
5.3.180.0070.06714.55
5.3.170.0130.07314.38
5.3.160.0100.06314.52
5.3.150.0100.07314.52
5.3.140.0070.07714.41
5.3.130.0070.07314.40
5.3.120.0070.08014.50
5.3.110.0030.06314.50
5.3.100.0100.07714.01
5.3.90.0070.07014.02
5.3.80.0070.07713.97
5.3.70.0130.06713.99
5.3.60.0030.07713.97
5.3.50.0100.07313.95
5.3.40.0070.07313.92
5.3.30.0170.06313.85
5.3.20.0070.05713.45
5.3.10.0030.07013.52
5.3.00.0100.06713.49
5.2.170.0030.06311.84
5.2.160.0000.04311.84
5.2.150.0030.04011.84
5.2.140.0030.05711.84
5.2.130.0070.06711.84
5.2.120.0070.05711.84
5.2.110.0030.06311.84
5.2.100.0070.02711.84
5.2.90.0070.03011.84
5.2.80.0000.06711.84
5.2.70.0100.05711.84
5.2.60.0030.06011.84
5.2.50.0100.04311.84
5.2.40.0070.06011.84
5.2.30.0070.05011.84
5.2.20.0030.05011.84
5.2.10.0030.06011.84
5.2.00.0070.05311.84
5.1.60.0030.05011.84
5.1.50.0030.02711.84
5.1.40.0030.05711.84
5.1.30.0070.05011.84
5.1.20.0070.05311.84
5.1.10.0100.04711.84
5.1.00.0070.03011.84
5.0.50.0000.02311.84
5.0.40.0000.02311.84
5.0.30.0000.07011.84
5.0.20.0070.04311.84
5.0.10.0030.03011.84
5.0.00.0030.06311.84
4.4.90.0030.02711.84
4.4.80.0070.03311.84
4.4.70.0070.03011.84
4.4.60.0000.04011.84
4.4.50.0030.01711.84
4.4.40.0000.03711.84
4.4.30.0070.03011.84
4.4.20.0000.03711.84
4.4.10.0070.02011.84
4.4.00.0030.04711.84
4.3.110.0000.02311.84
4.3.100.0000.02011.84
4.3.90.0030.03311.84
4.3.80.0070.05011.84
4.3.70.0000.03311.84
4.3.60.0000.03011.84
4.3.50.0070.03311.84
4.3.40.0000.04011.84
4.3.30.0030.03311.84
4.3.20.0030.03311.84
4.3.10.0000.03711.84
4.3.00.0070.02711.84