3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump(json_encode(['foo' => '<p>bar</p>'], \JSON_HEX_TAG));
based on GnB5o

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)
7.2.00.0040.00819.21
7.1.100.0040.00418.14
7.1.70.0030.00517.13
7.1.60.0070.01719.40
7.1.50.0040.01816.79
7.1.00.0030.07722.30
7.0.200.0080.00316.29
7.0.140.0030.07322.21
7.0.90.0170.07719.89
7.0.80.0030.07319.84
7.0.70.0070.07719.88
7.0.60.0070.08019.95
7.0.50.0070.07320.25
7.0.40.0100.08020.11
7.0.30.0130.08020.18
7.0.20.0130.04320.05
7.0.10.0070.08320.09
7.0.00.0000.06720.12
5.6.280.0100.06721.12
5.6.240.0100.07320.59
5.6.230.0030.08020.53
5.6.220.0100.08020.73
5.6.210.0100.08020.65
5.6.200.0030.08320.95
5.6.190.0070.08320.95
5.6.180.0130.07720.93
5.6.170.0030.08721.07
5.6.160.0100.08321.03
5.6.150.0170.07020.95
5.6.140.0170.07321.04
5.6.130.0000.08321.07
5.6.120.0030.05020.99
5.6.110.0200.05321.09
5.6.100.0030.06020.93
5.6.90.0030.09321.06
5.6.80.0030.04720.39
5.6.70.0130.07320.47
5.6.60.0070.08720.38
5.6.50.0130.07720.26
5.6.40.0200.07020.42
5.6.30.0030.07320.39
5.6.20.0130.07720.36
5.6.10.0030.08020.44
5.6.00.0030.08320.25
5.5.380.0070.07320.38
5.5.370.0030.04320.33
5.5.360.0030.08320.40
5.5.350.0030.09020.41
5.5.340.0100.08020.64
5.5.330.0130.07020.91
5.5.320.0100.07720.91
5.5.310.0000.05720.90
5.5.300.0030.09020.89
5.5.290.0070.06020.79
5.5.280.0100.08020.75
5.5.270.0170.05320.77
5.5.260.0130.08320.88
5.5.250.0100.08020.57
5.5.240.0170.06720.13
5.5.230.0070.06020.13
5.5.220.0030.08020.26
5.5.210.0030.06320.14
5.5.200.0030.08320.17
5.5.190.0070.08720.25
5.5.180.0030.07320.14
5.5.160.0170.04020.22
5.5.150.0100.07320.10
5.5.140.0030.07320.08
5.5.130.0130.06720.09
5.5.120.0070.07720.22
5.5.110.0100.07720.20
5.5.100.0100.07320.07
5.5.90.0070.04720.14
5.5.80.0230.03720.05
5.5.70.0070.05019.96
5.5.60.0170.05719.92
5.5.50.0000.04020.14
5.5.40.0070.07719.99
5.5.30.0070.08320.07
5.5.20.0070.05319.98
5.5.10.0130.07719.99
5.5.00.0030.04320.07
5.4.450.0070.08019.49
5.4.440.0070.04019.36
5.4.430.0100.08319.34
5.4.420.0100.03719.28
5.4.410.0100.07019.27
5.4.400.0100.06718.90
5.4.390.0070.07719.13
5.4.380.0100.06319.10
5.4.370.0100.07019.12
5.4.360.0070.07718.95
5.4.350.0070.05719.06
5.4.340.0070.04018.78
5.4.320.0130.07019.13
5.4.310.0100.06719.23
5.4.300.0070.07319.11
5.4.290.0070.06319.12
5.4.280.0070.08018.96
5.4.270.0070.06718.78
5.4.260.0070.05018.79
5.4.250.0000.07719.06
5.4.240.0030.08019.02
5.4.230.0030.08019.02
5.4.220.0130.07319.11
5.4.210.0070.07718.96
5.4.200.0100.07718.80
5.4.190.0030.07319.04
5.4.180.0100.08319.04
5.4.170.0030.04019.21
5.4.160.0030.04019.07
5.4.150.0070.04718.96
5.4.140.0000.04316.28
5.4.130.0030.03716.31
5.4.120.0030.06316.30
5.4.110.0030.07716.29
5.4.100.0130.06716.41
5.4.90.0100.07016.41
5.4.80.0100.05716.36
5.4.70.0100.05316.31
5.4.60.0030.02716.18
5.4.50.0070.03316.35
5.4.40.0100.03016.35
5.4.30.0000.04016.20
5.4.20.0070.03316.20
5.4.10.0000.04016.18
5.4.00.0070.03715.80
5.3.290.0170.04714.66
5.3.280.0100.07314.55
5.3.270.0070.05714.43
5.3.260.0070.08014.62
5.3.250.0030.05714.60
5.3.240.0000.04014.44
5.3.230.0070.04014.45
5.3.220.0100.06714.53
5.3.210.0070.06714.56
5.3.200.0070.07714.53
5.3.190.0130.06314.43
5.3.180.0070.03714.55
5.3.170.0030.06014.53
5.3.160.0100.06714.56
5.3.150.0030.04014.40
5.3.140.0000.04014.41
5.3.130.0030.03714.53
5.3.120.0000.04014.46
5.3.110.0070.07014.41
5.3.100.0000.04313.99
5.3.90.0000.04013.88
5.3.80.0070.03713.98
5.3.70.0030.04013.95
5.3.60.0000.04713.96
5.3.50.0030.03313.80
5.3.40.0000.04013.95
5.3.30.0070.06013.90
5.3.20.0070.03313.44
5.3.10.0070.02313.67
5.3.00.0070.03013.50
5.2.170.0000.03011.13
5.2.160.0100.03011.10
5.2.150.0000.04311.16
5.2.140.0070.02311.05
5.2.130.0000.02311.14
5.2.120.0030.02711.05
5.2.110.0030.03011.16
5.2.100.0070.03311.05
5.2.90.0000.05011.02
5.2.80.0000.02711.05
5.2.70.0070.03011.02
5.2.60.0000.03010.88
5.2.50.0000.04310.85
5.2.40.0070.04011.00
5.2.30.0000.03010.95
5.2.20.0000.02710.88
5.2.10.0030.05010.71
5.2.00.0000.03010.75
5.1.60.0030.0239.84
5.1.50.0000.02710.04
5.1.40.0030.02310.00
5.1.30.0030.02710.25
5.1.20.0000.02310.27
5.1.10.0030.02310.09
5.1.00.0030.02310.05
5.0.50.0000.0238.56
5.0.40.0000.0278.46
5.0.30.0030.0478.22
5.0.20.0100.0338.15
5.0.10.0000.0308.22
5.0.00.0070.0408.27
4.4.90.0030.0137.27
4.4.80.0000.0177.27
4.4.70.0000.0137.27
4.4.60.0030.0337.27
4.4.50.0030.0177.27
4.4.40.0070.0177.27
4.4.30.0030.0137.27
4.4.20.0000.0177.27
4.4.10.0030.0137.27
4.4.00.0000.0277.27
4.3.110.0070.0207.27
4.3.100.0000.0177.27
4.3.90.0030.0137.27
4.3.80.0070.0177.27
4.3.70.0000.0377.27
4.3.60.0030.0107.27
4.3.50.0000.0177.27
4.3.40.0000.0277.27
4.3.30.0000.0137.27
4.3.20.0000.0207.27
4.3.10.0030.0137.27
4.3.00.0000.0137.27