3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "b"; echo ++$a  echo "\n" $a = "abc"; echo ++$a  . "\n"; $a = "a4"; echo ++$a . "\n"; $a = "a4b1"; echo ++$a  . "\n";

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)
5.4.310.0370.07018.94
5.4.300.0370.05719.24
5.4.290.0230.07718.98
5.4.280.0270.07319.22
5.4.270.0330.07019.22
5.4.260.0230.03718.99
5.4.250.0270.04318.98
5.4.240.0300.06718.94
5.4.230.0300.07319.14
5.4.220.0230.04318.85
5.4.210.0270.05719.05
5.4.200.0300.04019.31
5.4.190.0300.06718.98
5.4.180.0300.07318.98
5.4.170.0270.07319.21
5.4.160.0300.06018.85
5.4.150.0370.06719.17
5.4.140.0270.04716.36
5.4.130.0330.07016.40
5.4.120.0300.06716.50
5.4.110.0330.06716.55
5.4.100.0370.06016.46
5.4.90.0300.06316.25
5.4.80.0230.03716.54
5.4.70.0300.06016.52
5.4.60.0300.04016.34
5.4.50.0300.06316.43
5.4.40.0300.04016.16
5.4.30.0230.05716.33
5.4.20.0230.03316.16
5.4.10.0370.06016.55
5.4.00.0400.05715.82
5.3.280.0330.06714.50
5.3.270.0300.04714.45
5.3.260.0200.05014.55
5.3.250.0300.05714.65
5.3.240.0230.03714.55
5.3.230.0300.04314.47
5.3.220.0270.04714.41
5.3.210.0270.03714.55
5.3.200.0270.07314.55
5.3.190.0270.07014.41
5.3.180.0300.03714.40
5.3.170.0230.05014.61
5.3.160.0300.06014.50
5.3.150.0370.06014.61
5.3.140.0330.03014.64
5.3.130.0330.03714.39
5.3.120.0300.06714.42
5.3.110.0200.04014.52
5.3.100.0230.04313.99
5.3.90.0200.04314.11
5.3.80.0230.05013.83
5.3.70.0300.06313.95
5.3.60.0300.07313.80
5.3.50.0330.06313.82
5.3.40.0300.05313.89
5.3.30.0270.04313.82
5.3.20.0230.04013.48
5.3.10.0270.04013.64
5.3.00.0230.06313.68
5.2.170.0370.04711.00
5.2.160.0270.05011.05
5.2.150.0170.04011.23
5.2.140.0200.05711.23
5.2.130.0330.03710.95
5.2.120.0230.04711.26
5.2.110.0230.05311.14
5.2.100.0200.04310.94
5.2.90.0270.03711.00
5.2.80.0270.03010.94
5.2.70.0230.05710.92
5.2.60.0200.04310.90
5.2.50.0230.03310.90
5.2.40.0130.03710.90
5.2.30.0200.05710.90
5.2.20.0170.04010.90
5.2.10.0230.04310.95
5.2.00.0200.04310.90
5.1.60.0170.04710.90
5.1.50.0100.05710.90
5.1.40.0200.03710.90
5.1.30.0270.02710.90
5.1.20.0200.03310.90
5.1.10.0230.03010.90
5.1.00.0230.03310.90
5.0.50.0130.04310.90
5.0.40.0130.03310.90
5.0.30.0100.05010.90
5.0.20.0170.03710.90
5.0.10.0130.02310.90
5.0.00.0170.06010.90
4.4.90.0100.03010.90
4.4.80.0130.03010.90
4.4.70.0070.03710.90
4.4.60.0070.03010.90
4.4.50.0070.03010.90
4.4.40.0100.03010.90
4.4.30.0130.03310.90
4.4.20.0100.03010.90
4.4.10.0100.02310.90
4.4.00.0100.05710.90
4.3.110.0100.03310.90
4.3.100.0070.01710.90
4.3.90.0100.03310.90
4.3.80.0070.05710.90
4.3.70.0100.03310.90
4.3.60.0170.01310.90
4.3.50.0130.03010.90
4.3.40.0100.05310.90
4.3.30.0070.03710.90
4.3.20.0130.02010.90
4.3.10.0030.02710.90
4.3.00.0070.03010.90

preferences:
142.92 ms | 1394 KiB | 7 Q