3v4l.org

run code in 300+ PHP versions simultaneously
<?php $pattern="/\(((?>[^()]+)|(?R))*\)/"; $str=<<<EOL (def a (x) (+ 1 x)) (print (a 1)) EOL preg_match_all($pattern,$str,$out); var_dump($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).

VersionSystem time (s)User time (s)Memory (MiB)
5.4.260.0130.05718.77
5.4.250.0170.06318.95
5.4.240.0070.06019.00
5.4.230.0100.05318.65
5.4.220.0200.07019.09
5.4.210.0070.06718.94
5.4.200.0170.06719.09
5.4.190.0270.05718.93
5.4.180.0030.06018.64
5.4.170.0100.05318.75
5.4.160.0030.05718.75
5.4.150.0100.05018.98
5.4.140.0100.06716.36
5.4.130.0100.04316.58
5.4.120.0030.05316.54
5.4.110.0070.05716.39
5.4.100.0100.06316.59
5.4.90.0070.05316.39
5.4.80.0000.05716.54
5.4.70.0070.06016.47
5.4.60.0200.04016.34
5.4.50.0100.04716.45
5.4.40.0070.07016.39
5.4.30.0100.04716.38
5.4.20.0100.05016.38
5.4.10.0170.08016.52
5.4.00.0100.06015.99
5.3.280.0170.07014.61
5.3.270.0100.06014.49
5.3.260.0200.04014.65
5.3.250.0170.07014.46
5.3.240.0130.07014.76
5.3.230.0130.05014.59
5.3.220.0130.05714.61
5.3.210.0100.05314.66
5.3.200.0070.05314.72
5.3.190.0130.06314.45
5.3.180.0130.06314.58
5.3.170.0130.05314.57
5.3.160.0030.05714.57
5.3.150.0100.07014.43
5.3.140.0130.06714.57
5.3.130.0130.06314.70
5.3.120.0100.07314.42
5.3.110.0130.05314.43
5.3.100.0100.07314.05
5.3.90.0070.05714.03
5.3.80.0100.05314.03
5.3.70.0130.05713.96
5.3.60.0100.07313.86
5.3.50.0170.04713.82
5.3.40.0130.05713.87
5.3.30.0100.06714.00
5.3.20.0070.05013.39
5.3.10.0100.05013.36
5.3.00.0070.05313.41
5.2.170.0000.04711.03
5.2.160.0000.06311.11
5.2.150.0100.05710.90
5.2.140.0070.06311.29
5.2.130.0070.04011.21
5.2.120.0030.05011.01
5.2.110.0070.04011.01
5.2.100.0130.03311.11
5.2.90.0030.06011.09
5.2.80.0100.04310.98
5.2.70.0070.04311.20
5.2.60.0100.04711.14
5.2.50.0130.06310.86
5.2.40.0030.04011.02
5.2.30.0070.03710.96
5.2.20.0100.03311.11
5.2.10.0070.05310.75
5.2.00.0070.04310.89
5.1.60.0100.04010.38
5.1.50.0100.02710.38
5.1.40.0030.04710.38
5.1.30.0130.03710.52
5.1.20.0070.04010.38
5.1.10.0100.03710.38
5.1.00.0200.03710.38
5.0.50.0030.03010.38
5.0.40.0100.02310.38
5.0.30.0070.04010.38
5.0.20.0030.02710.38
5.0.10.0030.03310.38
5.0.00.0030.06010.38
4.4.90.0070.02010.38
4.4.80.0030.02010.38
4.4.70.0030.02310.38
4.4.60.0070.01710.38
4.4.50.0070.02010.38
4.4.40.0070.04310.38
4.4.30.0030.03010.38
4.4.20.0130.02310.38
4.4.10.0000.02710.38
4.4.00.0070.03010.38
4.3.110.0000.02310.38
4.3.100.0070.02010.38
4.3.90.0030.03010.38
4.3.80.0100.04010.38
4.3.70.0000.03310.38
4.3.60.0030.02010.38
4.3.50.0070.02010.38
4.3.40.0000.05310.38
4.3.30.0030.03010.38
4.3.20.0000.02710.38
4.3.10.0030.03010.38
4.3.00.0070.0278.53

preferences:
150.36 ms | 1386 KiB | 7 Q