3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<!DOCTYPE html> <html> <body> <?php $a1=array("flagname"=>"LTV Under 50","b"=>"green"); $a2=array("flagname"=>"blue","b"=>"yellow"); $a1 = array_merge($a1,$a2); print_r($a1); ?> </body> </html>

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)
7.2.60.0100.00316.80
7.2.00.0090.00619.34
7.1.200.0040.01215.73
7.1.100.0000.01318.21
7.1.70.0000.01017.03
7.1.60.0070.01719.46
7.1.50.0160.01034.72
7.1.00.0100.07022.28
7.0.200.0030.00716.83
7.0.140.0000.07722.21
7.0.100.0530.07719.91
7.0.90.0100.05719.86
7.0.80.0000.05719.93
7.0.70.0070.05719.88
7.0.60.0100.04319.78
7.0.50.0030.07320.20
7.0.40.0100.05720.18
7.0.30.0070.04720.09
7.0.20.0130.05720.15
7.0.10.0070.04320.06
7.0.00.0070.10320.00
5.6.280.0000.07721.02
5.6.250.0100.04320.59
5.6.240.0100.04320.63
5.6.230.0030.07020.63
5.6.220.0100.07320.66
5.6.210.0100.07020.60
5.6.200.0070.05720.96
5.6.190.0030.09020.94
5.6.180.0130.08020.93
5.6.170.0070.08321.03
5.6.160.0130.07021.11
5.6.150.0070.07021.01
5.6.140.0100.04720.91
5.6.130.0070.08021.01
5.6.120.0100.07720.94
5.6.110.0100.04321.15
5.6.100.0200.06321.01
5.6.90.0100.07320.90
5.6.80.0070.07020.55
5.6.70.0100.08020.42
5.6.60.0100.08020.40
5.6.50.0030.08020.32
5.6.40.0070.06320.45
5.6.30.0030.08020.37
5.6.20.0100.06320.36
5.6.10.0000.04320.28
5.6.00.0100.07320.28
5.5.380.0030.04020.41
5.5.370.0070.03720.56
5.5.360.0100.04720.38
5.5.350.0130.05720.36
5.5.340.0070.07720.79
5.5.330.0130.03720.88
5.5.320.0130.06320.79
5.5.310.0100.06320.85
5.5.300.0130.07020.77
5.5.290.0070.07020.75
5.5.280.0100.08020.76
5.5.270.0100.04720.82
5.5.260.0100.06320.82
5.5.250.0170.05720.71
5.5.240.0100.03720.17
5.5.230.0030.08020.20
5.5.220.0070.05020.28
5.5.210.0130.05720.23
5.5.200.0100.08020.27
5.5.190.0100.06720.23
5.5.180.0030.06720.27
5.5.160.0100.05319.98
5.5.150.0000.05319.98
5.5.140.0070.08020.16
5.5.130.0100.07020.24
5.5.120.0000.06320.13
5.5.110.0070.03320.26
5.5.100.0170.06720.00
5.5.90.0100.07020.15
5.5.80.0100.03020.06
5.5.70.0100.05020.14
5.5.60.0030.04020.09
5.5.50.0030.05020.05
5.5.40.0030.04020.11
5.5.30.0030.07320.08
5.5.20.0070.05720.10
5.5.10.0100.07320.10
5.5.00.0100.07320.07
5.4.450.0170.06719.40
5.4.440.0100.06319.13
5.4.430.0100.07019.35
5.4.420.0200.04719.35
5.4.410.0030.04319.34
5.4.400.0030.08018.90
5.4.390.0070.07018.96
5.4.380.0030.07319.03
5.4.370.0070.08019.04
5.4.360.0070.04319.12
5.4.350.0100.07318.94
5.4.340.0070.04018.81
5.4.320.0130.06318.95
5.4.310.0170.06319.23
5.4.300.0030.03719.05
5.4.290.0100.07019.13
5.4.280.0100.03018.96
5.4.270.0070.04318.81
5.4.260.0070.03718.94
5.4.250.0070.03318.87
5.4.240.0030.03719.02
5.4.230.0030.04319.02
5.4.220.0000.05319.22
5.4.210.0030.03718.97
5.4.200.0030.03318.80
5.4.190.0070.03719.06
5.4.180.0070.03719.05
5.4.170.0130.06319.13
5.4.160.0100.06019.21
5.4.150.0030.05019.01
5.4.140.0070.06316.32
5.4.130.0100.07016.36
5.4.120.0030.04316.05
5.4.110.0070.06716.38
5.4.100.0000.05316.23
5.4.90.0000.08016.41
5.4.80.0030.04316.36
5.4.70.0030.05716.29
5.4.60.0070.08016.41
5.4.50.0100.07016.33
5.4.40.0030.04016.39
5.4.30.0030.07316.40
5.4.20.0030.07716.22
5.4.10.0070.04716.18
5.4.00.0070.07315.84
5.3.290.0100.07014.53
5.3.280.0170.02714.58
5.3.270.0000.04314.51
5.3.260.0070.03014.59
5.3.250.0070.04314.46
5.3.240.0070.04314.56
5.3.230.0000.04014.45
5.3.220.0070.06714.56
5.3.210.0070.07314.55
5.3.200.0100.05714.42
5.3.190.0000.06014.53
5.3.180.0030.07014.55
5.3.170.0100.05014.52
5.3.160.0170.06314.52
5.3.150.0030.04014.54
5.3.140.0030.04314.49
5.3.130.0130.03714.46
5.3.120.0030.06314.46
5.3.110.0070.06714.54
5.3.100.0230.02313.89
5.3.90.0070.05314.01
5.3.80.0030.08014.00
5.3.70.0130.06314.00
5.3.60.0070.06713.95
5.3.50.0000.04713.71
5.3.40.0000.04313.80
5.3.30.0070.07013.86
5.3.20.0070.07313.64
5.3.10.0100.05313.60
5.3.00.0130.06713.62
5.2.170.0070.06011.11
5.2.160.0070.06310.97
5.2.150.0100.05311.10
5.2.140.0030.06711.00
5.2.130.0070.05711.09
5.2.120.0000.03310.91
5.2.110.0070.06711.13
5.2.100.0070.05010.93
5.2.90.0030.06711.05
5.2.80.0070.04710.98
5.2.70.0030.05311.04
5.2.60.0030.04011.00
5.2.50.0000.04011.01
5.2.40.0130.04010.96
5.2.30.0030.03711.05
5.2.20.0030.04310.86
5.2.10.0100.05710.91
5.2.00.0100.05010.69
5.1.60.0070.04010.69
5.1.50.0030.02310.69
5.1.40.0070.02710.69
5.1.30.0100.04010.69
5.1.20.0000.03010.69
5.1.10.0070.05010.69
5.1.00.0000.03710.69
5.0.50.0030.02310.69
5.0.40.0000.02710.69
5.0.30.0000.06710.69
5.0.20.0070.02010.69
5.0.10.0030.02010.69
5.0.00.0030.03310.69
4.4.90.0070.02310.69
4.4.80.0030.02310.69
4.4.70.0000.03310.69
4.4.60.0030.03310.69
4.4.50.0000.02010.69
4.4.40.0030.03310.69
4.4.30.0000.03010.69
4.4.20.0030.02310.69
4.4.10.0000.03310.69
4.4.00.0000.03310.69
4.3.110.0070.03310.69
4.3.100.0030.01310.69
4.3.90.0000.03710.69
4.3.80.0030.05310.69
4.3.70.0030.03710.69
4.3.60.0070.02010.69
4.3.50.0000.04010.69
4.3.40.0000.05010.69
4.3.30.0030.04010.69
4.3.20.0000.04010.69
4.3.10.0030.01710.69
4.3.00.0070.02310.69