3v4l.org

run code in 300+ PHP versions simultaneously
<?php function exp($b, $n) { if ($n == 0) return 1; else return $b*$n; } echo exp(2, 10);

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).

VersionSystem time (s)User time (s)Memory (MiB)
5.6.90.0070.04321.00
5.6.80.0030.05020.51
5.5.250.0030.08720.58
5.5.240.0070.07320.37
5.4.410.0530.06319.36
5.4.400.0370.04319.32
5.4.390.0270.07019.13
5.4.380.0300.06319.15
5.4.370.0700.04019.23
5.4.360.0330.05019.14
5.4.350.0430.03719.20
5.4.340.0400.03719.09
5.4.320.0370.04019.15
5.4.310.0530.06319.16
5.4.300.0500.03019.15
5.4.290.0400.04718.87
5.4.280.0500.04719.06
5.4.270.0570.05719.34
5.4.260.0430.04319.24
5.4.250.0500.04019.14
5.4.240.0470.06718.84
5.4.230.0400.05019.14
5.4.220.0600.05719.13
5.4.210.0500.03718.94
5.4.200.0530.06719.02
5.4.190.0630.03719.15
5.4.180.0430.03719.21
5.4.170.0530.06319.25
5.4.160.0530.06019.06
5.4.150.0500.04719.11
5.4.140.0400.05716.50
5.4.130.0470.04316.32
5.4.120.0570.02716.45
5.4.110.0470.06316.19
5.4.100.0530.05716.56
5.4.90.0600.05716.54
5.4.80.0470.03316.54
5.4.70.0400.04016.50
5.4.60.0430.03016.52
5.4.50.0400.06016.44
5.4.40.0330.07016.55
5.4.30.0300.04316.25
5.4.20.0370.04716.39
5.4.10.0330.03716.42
5.4.00.0470.04015.79
5.3.290.0470.04314.56
5.3.280.0470.07014.58
5.3.270.0630.03314.67
5.3.260.0470.04314.61
5.3.250.0500.03014.75
5.3.240.0430.04314.76
5.3.230.0530.06314.49
5.3.220.0470.06014.78
5.3.210.0530.04714.46
5.3.200.0470.04014.46
5.3.190.0500.06014.49
5.3.180.0470.06714.57
5.3.170.0500.03314.50
5.3.160.0430.04014.46
5.3.150.0470.05714.64
5.3.140.0330.04314.46
5.3.130.0430.03014.55
5.3.120.0330.03714.54
5.3.110.0370.05014.47
5.3.100.0300.04014.04
5.3.90.0370.07314.04
5.3.80.0470.06314.06
5.3.70.0530.06013.93
5.3.60.0430.03014.01
5.3.50.0470.03314.02
5.3.40.0470.04313.85
5.3.30.0400.03713.88
5.3.20.0700.04313.61
5.3.10.0530.06313.56
5.3.00.0400.03713.54
5.2.170.0470.03011.05
5.2.160.0470.04711.05
5.2.150.0400.05711.22
5.2.140.0400.05011.05
5.2.130.0530.03311.26
5.2.120.0400.03011.00
5.2.110.0470.03311.12
5.2.100.0370.03711.07
5.2.90.0370.04311.18
5.2.80.0400.04311.01
5.2.70.0400.04711.20
5.2.60.0430.05710.95
5.2.50.0430.05310.92
5.2.40.0270.03310.91
5.2.30.0370.05010.97
5.2.20.0370.03010.94
5.2.10.0030.02710.83
5.2.00.0100.03010.79
5.1.60.0170.03310.02
5.1.50.0270.03010.02
5.1.40.0300.04310.02
5.1.30.0300.03710.34
5.1.20.0370.04710.42
5.1.10.0370.03010.02
5.1.00.0370.02010.18
5.0.50.0200.03710.02
5.0.40.0130.04010.02
5.0.30.0200.06010.02
5.0.20.0200.03710.02
5.0.10.0200.01310.02
5.0.00.0200.05710.02
4.4.90.0230.03010.02
4.4.80.0170.03310.02
4.4.70.0030.03710.02
4.4.60.0000.04010.02
4.4.50.0000.01710.02
4.4.40.0130.05010.02
4.4.30.0200.01710.02
4.4.20.0200.03010.02
4.4.10.0130.01710.02
4.4.00.0170.05710.02
4.3.110.0170.03310.02
4.3.100.0200.02310.02
4.3.90.0130.01710.02
4.3.80.0130.03010.02
4.3.70.0130.01310.02
4.3.60.0100.02010.02
4.3.50.0200.01010.02
4.3.40.0130.02010.02
4.3.30.0070.02010.02
4.3.20.0070.01710.02
4.3.10.0030.02010.02
4.3.00.0070.01310.02

preferences:
148.37 ms | 942 KiB | 9 Q