3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $callable = "Class::czdayshortly"; if (is_callable($callable, FALSE, $text)) { echo "supr"; } else { echo "ook"; } $functionVariable = 'someFunction()'; var_dump(is_callable($functionVariable, false, $callable_name));

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)
7.3.10.0090.00316.38
7.3.00.0070.00716.59
7.2.130.0070.00416.63
7.2.120.0090.00616.83
7.2.110.0030.01016.97
7.2.100.0040.01216.61
7.2.90.0040.01116.60
7.2.80.0060.01016.76
7.2.70.0140.00716.80
7.2.60.0060.00916.97
7.2.50.0070.01016.80
7.2.40.0060.00316.82
7.2.30.0080.01116.80
7.2.20.0060.00916.84
7.2.10.0080.00416.75
7.2.00.0060.01018.03
7.1.250.0060.00715.39
7.1.100.0140.01018.08
7.1.70.0070.00717.17
7.1.60.0180.00719.46
7.1.50.0100.01016.80
7.1.00.0000.08022.50
7.0.200.0140.01114.70
7.0.140.0070.07022.07
7.0.100.0030.07719.86
7.0.90.0100.08321.70
7.0.80.0130.04321.68
7.0.70.0030.07721.68
7.0.60.0030.08021.55
7.0.50.0030.08720.35
7.0.40.0070.07320.17
7.0.30.0100.05020.08
7.0.20.0130.08020.10
7.0.10.0100.08020.14
7.0.00.0030.08320.07
5.6.250.0100.06720.62
5.6.240.0100.08320.54
5.6.230.0130.08320.47
5.6.220.0100.07020.61
5.6.210.0070.04020.46
5.6.200.0100.07020.96
5.6.190.0030.08320.95
5.6.180.0170.07321.03
5.6.170.0100.08021.16
5.6.160.0100.04721.01
5.6.150.0070.08721.16
5.6.140.0070.07321.07
5.6.130.0070.05021.02
5.6.120.0230.06721.16
5.6.110.0070.04321.09
5.6.100.0130.08021.00
5.6.90.0170.07720.95
5.6.80.0030.05020.47
5.6.70.0030.05320.45
5.6.60.0070.07320.46
5.6.50.0100.03720.39
5.6.40.0030.04720.30
5.6.30.0070.04320.36
5.6.20.0100.06020.46
5.6.10.0130.04020.37
5.6.00.0030.07720.28
5.5.380.0070.08020.43
5.5.370.0070.06020.49
5.5.360.0030.06020.34
5.5.350.0030.05320.31
5.5.340.0030.07320.64
5.5.330.0070.07020.82
5.5.320.0030.09320.80
5.5.310.0030.05720.77
5.5.300.0000.08020.64
5.5.290.0030.05320.91
5.5.280.0000.05720.85
5.5.270.0030.09320.87
5.5.260.0070.05320.82
5.5.250.0000.08320.45
5.5.240.0200.06320.30
5.5.230.0130.08020.00
5.5.220.0030.07020.25
5.5.210.0030.04020.12
5.5.200.0100.05020.11
5.5.190.0030.05020.14
5.5.180.0000.09320.21
5.5.160.0070.05020.25
5.5.150.0100.06020.16
5.5.140.0030.06720.13
5.5.130.0030.04019.98
5.5.120.0070.04320.22
5.5.110.0030.05320.07
5.5.100.0170.07320.07
5.5.90.0130.06320.16
5.5.80.0100.05020.04
5.5.70.0070.07020.08
5.5.60.0000.08319.96
5.5.50.0100.07020.05
5.5.40.0070.05320.02
5.5.30.0070.05020.07
5.5.20.0070.07720.00
5.5.10.0100.06720.03
5.5.00.0170.06020.11
5.4.450.0070.05719.38
5.4.440.0030.08019.44
5.4.430.0130.06719.11
5.4.420.0100.06019.27
5.4.410.0070.07019.16
5.4.400.0100.06319.24
5.4.390.0130.06719.12
5.4.380.0030.07019.07
5.4.370.0100.07719.06
5.4.360.0030.07718.98
5.4.350.0030.08018.98
5.4.340.0070.06318.94
5.4.320.0030.04319.10
5.4.310.0000.07019.07
5.4.300.0130.03718.94
5.4.290.0100.05018.89
5.4.280.0130.05318.96
5.4.270.0000.05318.93
5.4.260.0070.07318.98
5.4.250.0100.06318.80
5.4.240.0070.07319.00
5.4.230.0030.06319.11
5.4.220.0100.05719.07
5.4.210.0000.05019.13
5.4.200.0130.07018.95
5.4.190.0130.05319.06
5.4.180.0100.07019.24
5.4.170.0070.08019.06
5.4.160.0130.03019.10
5.4.150.0170.06719.05
5.4.140.0030.04716.32
5.4.130.0130.02716.11
5.4.120.0030.04716.35
5.4.110.0070.07016.34
5.4.100.0070.05316.21
5.4.90.0070.07316.26
5.4.80.0000.06016.34
5.4.70.0070.07016.26
5.4.60.0070.07716.21
5.4.50.0130.02716.23
5.4.40.0100.05716.45
5.4.30.0000.04316.41
5.4.20.0130.06716.28
5.4.10.0030.07316.23
5.4.00.0030.04715.81
5.3.290.0030.05314.52
5.3.280.0070.08014.45
5.3.270.0100.07014.43
5.3.260.0100.03714.61
5.3.250.0070.07014.62
5.3.240.0100.05314.55
5.3.230.0130.05714.41
5.3.220.0030.08014.55
5.3.210.0100.07014.52
5.3.200.0100.04714.38
5.3.190.0070.03714.55
5.3.180.0030.07714.52
5.3.170.0130.03314.38
5.3.160.0070.05014.55
5.3.150.0070.03314.52
5.3.140.0100.06014.51
5.3.130.0030.07714.47
5.3.120.0070.04314.50
5.3.110.0000.04014.41
5.3.100.0070.05013.87
5.3.90.0070.07014.02
5.3.80.0100.04013.87
5.3.70.0030.07013.95
5.3.60.0070.06013.77
5.3.50.0030.07713.89
5.3.40.0070.07313.89
5.3.30.0030.06713.88
5.3.20.0030.08013.68
5.3.10.0100.05713.42
5.3.00.0070.07013.50
5.2.170.0070.05312.71
5.2.160.0070.02712.71
5.2.150.0070.06712.71
5.2.140.0030.04312.71
5.2.130.0000.03012.71
5.2.120.0100.04012.71
5.2.110.0000.05712.71
5.2.100.0100.02312.71
5.2.90.0100.05312.71
5.2.80.0030.06312.71
5.2.70.0170.05712.71
5.2.60.0030.06312.71
5.2.50.0030.03712.71
5.2.40.0000.05312.71
5.2.30.0100.04712.71
5.2.20.0170.03012.71
5.2.10.0030.04012.71
5.2.00.0100.04312.71
5.1.60.0100.05012.71
5.1.50.0030.05312.71
5.1.40.0070.02712.71
5.1.30.0170.03012.71
5.1.20.0000.05712.71
5.1.10.0100.04312.71
5.1.00.0000.04312.71
5.0.50.0030.04012.71
5.0.40.0030.03312.71
5.0.30.0000.06312.71
5.0.20.0030.04712.71
5.0.10.0000.04312.71
5.0.00.0000.03012.71
4.4.90.0030.01312.71
4.4.80.0030.03712.71
4.4.70.0070.01312.71
4.4.60.0000.03712.71
4.4.50.0030.02712.71
4.4.40.0030.03312.71
4.4.30.0000.02712.71
4.4.20.0030.01712.71
4.4.10.0030.02312.71
4.4.00.0070.05312.71
4.3.110.0030.02012.71
4.3.100.0070.01312.71
4.3.90.0030.01312.71
4.3.80.0000.05312.71
4.3.70.0030.01312.71
4.3.60.0030.02012.71
4.3.50.0000.03712.71
4.3.40.0000.03712.71
4.3.30.0000.02312.71
4.3.20.0030.02312.71
4.3.10.0000.03012.71
4.3.00.0000.01312.71