3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $in = "1234"; $arr = array($in => "foobar"); $keys = array_keys($arr); $out = $keys[0]; var_dump($in == $out); var_dump($in === $out); ?>

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)
7.3.0rc40.0220.00398.97
7.3.0rc30.0200.00316.80
7.3.0beta10.0060.00312.50
7.2.00.0170.00419.38
7.1.200.0100.00015.96
7.1.100.0060.00918.35
7.1.70.0040.00417.18
7.1.60.0100.01419.40
7.1.50.0090.01216.78
7.1.00.0000.03722.40
7.0.200.0000.00716.55
7.0.140.0130.06321.90
7.0.80.0600.08719.89
7.0.70.0670.07719.88
7.0.60.0630.07720.06
7.0.50.0200.07320.39
7.0.40.0070.05720.09
7.0.30.0030.04320.06
7.0.20.0030.04720.04
7.0.10.0000.03720.07
7.0.00.0030.07720.04
5.6.280.0070.07020.98
5.6.230.0030.09720.62
5.6.220.0070.08320.66
5.6.210.0030.08720.46
5.6.200.0070.08721.06
5.6.190.0070.04021.03
5.6.180.0030.04721.08
5.6.170.0000.04021.06
5.6.160.0000.04021.13
5.6.150.0070.05721.00
5.6.140.0000.04321.00
5.6.130.0000.05021.02
5.6.120.0030.04321.02
5.6.110.0030.04321.09
5.6.100.0030.03721.01
5.6.90.0030.03721.08
5.6.80.0000.07720.46
5.6.70.0100.03020.30
5.6.60.0030.08320.47
5.6.50.0100.07720.43
5.6.40.0070.05020.37
5.6.30.0100.07320.37
5.6.20.0030.04720.35
5.6.10.0100.07320.44
5.6.00.0130.07020.46
5.5.370.0070.05720.34
5.5.360.0030.08320.40
5.5.350.0070.05020.37
5.5.340.0030.07320.79
5.5.330.0070.04020.89
5.5.320.0030.04020.64
5.5.310.0000.04320.89
5.5.300.0100.07720.91
5.5.290.0070.03720.75
5.5.280.0070.04020.85
5.5.270.0070.04020.79
5.5.260.0070.04020.87
5.5.250.0030.04320.44
5.5.240.0070.07720.02
5.5.230.0030.04020.16
5.5.220.0130.07720.23
5.5.210.0000.07720.16
5.5.200.0070.07720.07
5.5.190.0070.07020.13
5.5.180.0070.07720.27
5.5.160.0100.07020.26
5.5.150.0170.06720.26
5.5.140.0100.07319.98
5.5.130.0130.06320.16
5.5.120.0100.05020.16
5.5.110.0170.04320.12
5.5.100.0030.08320.04
5.5.90.0070.07720.08
5.5.80.0170.05020.12
5.5.70.0030.04720.06
5.5.60.0070.07320.11
5.5.50.0070.07320.05
5.5.40.0170.08720.02
5.5.30.0070.07320.04
5.5.20.0030.05320.05
5.5.10.0130.06720.03
5.5.00.0000.08320.03
5.4.450.0070.03019.38
5.4.440.0030.03719.34
5.4.430.0000.04319.41
5.4.420.0070.03719.40
5.4.410.0000.04719.31
5.4.400.0100.04718.79
5.4.390.0100.03019.19
5.4.380.0000.04019.09
5.4.370.0070.07019.14
5.4.360.0100.03719.12
5.4.350.0100.06019.20
5.4.340.0030.06319.12
5.4.320.0070.05318.93
5.4.310.0030.08319.13
5.4.300.0070.07718.80
5.4.290.0100.07319.11
5.4.280.0100.07019.14
5.4.270.0030.08019.09
5.4.260.0030.06019.22
5.4.250.0130.07018.80
5.4.240.0100.07319.14
5.4.230.0100.07319.11
5.4.220.0030.08019.05
5.4.210.0130.06718.93
5.4.200.0100.06719.04
5.4.190.0100.07318.95
5.4.180.0100.03718.96
5.4.170.0070.07319.22
5.4.160.0070.08019.02
5.4.150.0070.07019.09
5.4.140.0070.06716.39
5.4.130.0070.07016.32
5.4.120.0100.06716.05
5.4.110.0100.03316.38
5.4.100.0070.07016.36
5.4.90.0030.04016.38
5.4.80.0070.06716.20
5.4.70.0030.03716.40
5.4.60.0100.06716.32
5.4.50.0000.08016.38
5.4.40.0130.06716.38
5.4.30.0100.07016.33
5.4.20.0130.07016.41
5.4.10.0100.06316.27
5.4.00.0000.06015.72
5.3.290.0070.07714.67
5.3.280.0100.07014.54
5.3.270.0070.07014.60
5.3.260.0170.06714.55
5.3.250.0070.07714.48
5.3.240.0170.07014.61
5.3.230.0100.07314.60
5.3.220.0070.06714.55
5.3.210.0070.06314.57
5.3.200.0070.04714.40
5.3.190.0070.07714.54
5.3.180.0070.03714.47
5.3.170.0000.07314.56
5.3.160.0130.07314.55
5.3.150.0030.07714.42
5.3.140.0070.07714.51
5.3.130.0100.07014.54
5.3.120.0200.06014.40
5.3.110.0130.07014.48
5.3.100.0030.07714.04
5.3.90.0070.07713.96
5.3.80.0170.06013.79
5.3.70.0030.08014.00
5.3.60.0070.07313.96
5.3.50.0030.07713.92
5.3.40.0030.05713.89
5.3.30.0070.07713.89
5.3.20.0070.07713.70
5.3.10.0030.07013.42
5.3.00.0130.06313.63
5.2.170.0030.06011.63
5.2.160.0030.06011.63
5.2.150.0030.06311.63
5.2.140.0030.06011.63
5.2.130.0100.04711.63
5.2.120.0030.06311.63
5.2.110.0070.06011.63
5.2.100.0030.04311.63
5.2.90.0100.03311.63
5.2.80.0070.04011.63
5.2.70.0070.06311.63
5.2.60.0070.04311.63
5.2.50.0070.05311.63
5.2.40.0000.05711.63
5.2.30.0070.05711.63
5.2.20.0070.06011.63
5.2.10.0000.05311.63
5.2.00.0100.05711.63
5.1.60.0100.04311.63
5.1.50.0070.05311.63
5.1.40.0170.04011.63
5.1.30.0130.04011.63
5.1.20.0030.04711.63
5.1.10.0070.04711.63
5.1.00.0030.05711.63
5.0.50.0070.03711.63
5.0.40.0030.02311.63
5.0.30.0030.05711.63
5.0.20.0030.03711.63
5.0.10.0000.04011.63
5.0.00.0000.07011.63
4.4.90.0070.02711.63
4.4.80.0030.03711.63
4.4.70.0000.03011.63
4.4.60.0070.03011.63
4.4.50.0000.03711.63
4.4.40.0000.05711.63
4.4.30.0000.02711.63
4.4.20.0000.03711.63
4.4.10.0000.03711.63
4.4.00.0030.04311.63
4.3.110.0000.03311.63
4.3.100.0070.03011.63
4.3.90.0000.03311.63
4.3.80.0070.05011.63
4.3.70.0000.04011.63
4.3.60.0070.03011.63
4.3.50.0000.03311.63
4.3.40.0000.05011.63
4.3.30.0070.02011.63
4.3.20.0000.03711.63
4.3.10.0030.02011.63
4.3.00.0000.03711.63