3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo strtolower(preg_replace('/([a-zA-Z])\s+=([a-zA-Z])/', '$1_$2', 'algo = algo'));

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)
7.3.0rc40.0230.00398.97
7.3.0rc30.0160.00316.55
7.3.0beta10.0050.00512.73
7.3.0alpha10.0030.00712.51
7.2.60.0070.00716.92
7.2.00.0070.00719.26
7.1.200.0040.01115.80
7.1.100.0000.01118.16
7.1.70.0070.00317.28
7.1.60.0180.00619.17
7.1.50.0070.01317.12
7.1.00.0030.03322.59
7.0.200.0000.00716.80
7.0.140.0070.07022.02
7.0.100.0030.04320.02
7.0.90.0100.03019.91
7.0.80.0130.04019.97
7.0.70.0130.06020.11
7.0.60.0170.07719.93
7.0.50.0070.07020.33
7.0.40.0000.08720.05
7.0.30.0030.05320.11
7.0.20.0070.08020.00
7.0.10.0070.04720.04
7.0.00.0070.08020.13
5.6.280.0030.07320.88
5.6.250.0100.03320.57
5.6.240.0030.03720.58
5.6.230.0100.03720.73
5.6.220.0030.04020.70
5.6.210.0030.08320.54
5.6.200.0100.07721.03
5.6.190.0130.07020.99
5.6.180.0000.08021.08
5.6.170.0130.07721.02
5.6.160.0070.07721.11
5.6.150.0070.05721.02
5.6.140.0170.06321.04
5.6.130.0070.07021.16
5.6.120.0100.04721.13
5.6.110.0070.08021.07
5.6.100.0130.05721.02
5.6.90.0130.07021.02
5.6.80.0030.08020.42
5.6.70.0070.05320.33
5.6.60.0030.08020.31
5.6.50.0130.03720.41
5.6.40.0000.08720.53
5.6.30.0100.07720.38
5.6.20.0100.07020.37
5.6.10.0070.07720.30
5.6.00.0030.05320.44
5.5.380.0200.03020.38
5.5.370.0070.03020.47
5.5.360.0000.05320.38
5.5.350.0130.06320.38
5.5.340.0070.08020.89
5.5.330.0030.07020.87
5.5.320.0100.06020.77
5.5.310.0130.07720.73
5.5.300.0030.08720.88
5.5.290.0070.05020.89
5.5.280.0100.07720.85
5.5.270.0030.06720.78
5.5.260.0100.07720.87
5.5.250.0000.09320.69
5.5.240.0100.07720.18
5.5.230.0130.06720.11
5.5.220.0130.06720.27
5.5.210.0100.04320.23
5.5.200.0030.08320.22
5.5.190.0130.04020.11
5.5.180.0070.07320.27
5.5.160.0100.07320.20
5.5.150.0000.07720.12
5.5.140.0200.06720.27
5.5.130.0100.08020.11
5.5.120.0000.09020.15
5.5.110.0100.04020.25
5.5.100.0030.05020.07
5.5.90.0070.04320.09
5.5.80.0000.08320.15
5.5.70.0200.04320.13
5.5.60.0030.07020.05
5.5.50.0070.05720.13
5.5.40.0070.04719.92
5.5.30.0070.07719.92
5.5.20.0100.07020.07
5.5.10.0070.08320.13
5.5.00.0100.08020.00
5.4.450.0030.08019.56
5.4.440.0100.04319.36
5.4.430.0000.05319.30
5.4.420.0000.06019.35
5.4.410.0170.06719.34
5.4.400.0200.06019.15
5.4.390.0070.04718.97
5.4.380.0030.07019.10
5.4.370.0170.05718.98
5.4.360.0100.07019.13
5.4.350.0030.06718.79
5.4.340.0070.05318.88
5.4.320.0000.05319.19
5.4.310.0000.07319.06
5.4.300.0070.04719.23
5.4.290.0000.06718.98
5.4.280.0100.07718.98
5.4.270.0100.05319.02
5.4.260.0100.06719.06
5.4.250.0030.08018.94
5.4.240.0070.07318.78
5.4.230.0200.06319.03
5.4.220.0100.07319.04
5.4.210.0070.06319.05
5.4.200.0000.08319.14
5.4.190.0030.06319.13
5.4.180.0070.07319.09
5.4.170.0130.03719.18
5.4.160.0100.07019.01
5.4.150.0130.06319.11
5.4.140.0130.06716.36
5.4.130.0100.06316.34
5.4.120.0130.06716.34
5.4.110.0100.07316.28
5.4.100.0070.06016.34
5.4.90.0170.06316.45
5.4.80.0000.04316.32
5.4.70.0100.05716.38
5.4.60.0100.05716.40
5.4.50.0000.07316.19
5.4.40.0130.07016.29
5.4.30.0070.05716.18
5.4.20.0030.04716.39
5.4.10.0130.06316.15
5.4.00.0130.06715.51
5.3.290.0130.07014.60
5.3.280.0070.07714.50
5.3.270.0030.07314.59
5.3.260.0100.06014.56
5.3.250.0030.07314.57
5.3.240.0100.04014.55
5.3.230.0030.07014.55
5.3.220.0070.07014.57
5.3.210.0130.05014.41
5.3.200.0100.06314.39
5.3.190.0030.08014.55
5.3.180.0030.07314.41
5.3.170.0030.05714.52
5.3.160.0030.07714.54
5.3.150.0070.07014.51
5.3.140.0100.06314.38
5.3.130.0130.07014.40
5.3.120.0070.07014.55
5.3.110.0100.07714.54
5.3.100.0030.06013.99
5.3.90.0030.06013.88
5.3.80.0000.05013.79
5.3.70.0030.07713.77
5.3.60.0100.05714.00
5.3.50.0030.06713.89
5.3.40.0100.06713.93
5.3.30.0100.06313.89
5.3.20.0070.07313.68
5.3.10.0030.07313.65
5.3.00.0030.07013.60
5.2.170.0030.05311.13
5.2.160.0030.05711.16
5.2.150.0070.04711.13
5.2.140.0070.06311.10
5.2.130.0030.06011.09
5.2.120.0070.06011.13
5.2.110.0100.05311.06
5.2.100.0130.05310.96
5.2.90.0070.06010.96
5.2.80.0100.06011.13
5.2.70.0100.04310.94
5.2.60.0030.06010.99
5.2.50.0030.05711.02
5.2.40.0130.05310.98
5.2.30.0070.03310.83
5.2.20.0070.05310.81
5.2.10.0100.05310.76
5.2.00.0030.04310.78
5.1.60.0070.04710.01
5.1.50.0000.05710.03
5.1.40.0000.0309.85
5.1.30.0000.06310.36
5.1.20.0030.04010.40
5.1.10.0000.05710.08
5.1.00.0100.0509.90
5.0.50.0070.0408.37
5.0.40.0000.0478.29
5.0.30.0000.0408.06
5.0.20.0070.0408.27
5.0.10.0000.0478.15
5.0.00.0000.0578.23
4.4.90.0000.0378.05
4.4.80.0030.0378.05
4.4.70.0100.0108.05
4.4.60.0030.0378.05
4.4.50.0000.0308.05
4.4.40.0000.0338.05
4.4.30.0100.0278.05
4.4.20.0000.0378.05
4.4.10.0070.0338.05
4.4.00.0100.0508.05
4.3.110.0000.0408.05
4.3.100.0000.0378.05
4.3.90.0000.0378.05
4.3.80.0070.0538.05
4.3.70.0070.0308.05
4.3.60.0070.0338.05
4.3.50.0000.0378.05
4.3.40.0030.0478.05
4.3.30.0000.0378.05
4.3.20.0000.0378.05
4.3.10.0000.0338.05
4.3.00.0000.0338.05