3v4l.org

run code in 300+ PHP versions simultaneously
<?php $pattern="/\(((?>[^()]+)|(?R))*\)/"; $str = <<< LOL (def a (x) (+ 1 x)) (print (a 1)) LOL; preg_match_all($pattern,$str,$out); var_dump($out[0]);

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)
8.3.60.0070.01018.43
8.3.50.0110.00921.99
8.3.40.0130.00319.00
8.3.30.0060.01018.96
8.3.20.0040.00420.16
8.3.10.0040.00422.09
8.3.00.0040.00422.42
8.2.180.0060.00916.88
8.2.170.0090.00622.96
8.2.160.0080.00520.97
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0080.00019.48
8.2.110.0030.00622.26
8.2.100.0080.00419.89
8.2.90.0090.00019.21
8.2.80.0000.00917.97
8.2.70.0040.00417.63
8.2.60.0030.00617.93
8.2.50.0040.00418.07
8.2.40.0050.00317.92
8.2.30.0040.00418.17
8.2.20.0060.00317.71
8.2.10.0030.00519.57
8.2.00.0000.00817.80
8.1.280.0100.01025.92
8.1.270.0000.00822.02
8.1.260.0080.00026.35
8.1.250.0070.00028.09
8.1.240.0090.00024.02
8.1.230.0070.00419.22
8.1.220.0040.00417.74
8.1.210.0030.00618.77
8.1.200.0060.00317.36
8.1.190.0030.00517.41
8.1.180.0070.00018.58
8.1.170.0060.00318.63
8.1.160.0040.00421.96
8.1.150.0040.00418.60
8.1.140.0050.00217.54
8.1.130.0000.00717.70
8.1.120.0040.00417.45
8.1.110.0030.00517.43
8.1.100.0070.00017.47
8.1.90.0040.00417.45
8.1.80.0040.00417.54
8.1.70.0000.00717.43
8.1.60.0000.00817.58
8.1.50.0000.00817.59
8.1.40.0050.00317.59
8.1.30.0000.00817.72
8.1.20.0040.00417.82
8.1.10.0070.00017.63
8.1.00.0040.00417.54
8.0.300.0040.00418.77
8.0.290.0000.00717.05
8.0.280.0030.00318.46
8.0.270.0050.00217.21
8.0.260.0000.00616.84
8.0.250.0000.00717.04
8.0.240.0000.00717.00
8.0.230.0070.00016.97
8.0.220.0000.00717.05
8.0.210.0070.00017.05
8.0.200.0030.00317.11
8.0.190.0070.00317.16
8.0.180.0000.00717.05
8.0.170.0070.00016.95
8.0.160.0000.00716.90
8.0.150.0040.00316.96
8.0.140.0030.00516.96
8.0.130.0030.00313.47
8.0.120.0050.00317.08
8.0.110.0000.00817.07
8.0.100.0040.00416.91
8.0.90.0040.00417.07
8.0.80.0110.00517.01
8.0.70.0000.00717.15
8.0.60.0040.00416.93
8.0.50.0040.00416.86
8.0.30.0150.00617.12
8.0.20.0160.00717.46
8.0.10.0050.00217.20
8.0.00.0030.01516.80
7.4.330.0060.00015.00
7.4.320.0040.00416.71
7.4.300.0060.00016.73
7.4.290.0030.00316.73
7.4.280.0040.00416.65
7.4.270.0030.00316.77
7.4.260.0040.00416.53
7.4.250.0050.00316.60
7.4.240.0010.00716.74
7.4.230.0000.00716.75
7.4.220.0150.00416.71
7.4.210.0080.00616.79
7.4.200.0030.00316.86
7.4.190.0040.00416.62
7.4.160.0090.00916.55
7.4.150.0060.01017.40
7.4.140.0110.01117.86
7.4.130.0090.01016.73
7.4.120.0100.00716.69
7.4.110.0120.00616.79
7.4.100.0120.00616.89
7.4.90.0130.00716.76
7.4.80.0080.01019.39
7.4.70.0070.01016.47
7.4.60.0100.00716.56
7.4.50.0050.00316.54
7.4.40.0080.00822.77
7.4.30.0060.01116.68
7.4.00.0120.00315.39
7.3.330.0030.00313.28
7.3.320.0000.00513.23
7.3.310.0030.00316.41
7.3.300.0070.00016.32
7.3.290.0090.00616.52
7.3.280.0120.00416.46
7.3.270.0030.01317.40
7.3.260.0100.01416.44
7.3.250.0150.00316.53
7.3.240.0180.00616.58
7.3.230.0090.00916.39
7.3.210.0030.01416.48
7.3.200.0100.00619.39
7.3.190.0200.00016.53
7.3.180.0080.00816.51
7.3.170.0080.00816.46
7.3.160.0040.01516.50
7.3.120.0150.00015.14
7.2.330.0090.00916.66
7.2.320.0030.01516.77
7.2.310.0080.01216.73
7.2.300.0060.01216.63
7.2.290.0070.01016.65
7.2.60.0060.00617.03
7.2.50.0160.00816.80
7.1.200.0030.00916.11
7.1.100.0030.01018.40
7.1.70.0050.00517.16
7.1.60.0110.01119.82
7.1.50.0040.01817.04
7.1.00.0000.08022.30
7.0.200.0030.00616.65
7.0.140.0030.07322.09
7.0.60.0200.07019.93
7.0.50.0030.08717.84
7.0.40.0070.04020.34
7.0.30.0200.04020.14
7.0.20.0270.06720.11
7.0.10.0330.07020.18
7.0.00.0070.05320.03
5.6.280.0100.07020.78
5.6.210.0030.07020.64
5.6.200.0100.07718.09
5.6.190.0000.07020.64
5.6.180.3230.04320.41
5.6.170.0270.08320.51
5.6.160.0070.08020.37
5.6.150.0000.04318.13
5.6.140.0000.05718.12
5.6.130.0070.06318.11
5.6.120.0070.06721.09
5.6.110.0170.07321.01
5.6.100.0100.08020.97
5.6.90.0100.08721.02
5.6.80.0100.07720.48
5.6.70.0330.07020.37
5.5.350.0030.07320.30
5.5.340.0230.03017.89
5.5.330.0030.08720.12
5.5.320.0300.08020.29
5.5.310.0300.06020.27
5.5.300.0000.05017.89
5.5.290.0130.07317.98
5.5.280.0070.04020.87
5.5.270.0100.04320.79
5.5.260.0100.08320.76
5.5.250.0030.05320.68
5.5.240.0030.04320.26
5.4.450.0470.06019.47
5.4.440.0470.06319.32
5.4.430.0030.06319.27
5.4.420.0070.05719.25
5.4.410.0170.05719.24
5.4.400.0730.00018.61
5.4.390.0930.00018.50
5.4.380.0130.06318.68
5.4.370.0270.05318.56
5.4.360.0270.05018.60
5.4.350.0200.05718.78
5.4.340.0430.05318.49
5.4.320.0090.03312.45
5.4.310.0070.03912.45
5.4.300.0120.04212.45
5.4.290.0090.03912.45
5.4.280.0030.03812.34
5.4.270.0090.04112.34
5.4.260.0170.05319.03
5.4.250.0100.06718.84
5.4.240.0130.05718.88
5.4.230.0130.06718.99
5.4.220.0230.05718.92
5.4.210.0130.06318.77
5.4.200.0130.04718.63
5.4.190.0030.06719.02
5.4.180.0130.05318.89
5.4.170.0070.07318.74
5.4.160.0130.05318.85
5.4.150.0130.07018.71
5.4.140.0200.06016.26
5.4.130.0070.04716.49
5.4.120.0230.04016.29
5.4.110.0070.07316.43
5.4.100.0030.05716.23
5.4.90.0130.05316.45
5.4.80.0070.06316.41
5.4.70.0000.05716.27
5.4.60.0070.07016.39
5.4.50.0130.04016.23
5.4.40.0000.05716.43
5.4.30.0000.07316.39
5.4.20.0000.07016.31
5.4.10.0030.05316.46
5.4.00.0100.04715.71
5.3.290.0050.04612.80
5.3.280.0130.06714.47
5.3.270.0100.06014.60
5.3.260.0100.07714.47
5.3.250.0070.05714.49
5.3.240.0030.05714.62
5.3.230.0130.04714.60
5.3.220.0200.04014.49
5.3.210.0070.07714.61
5.3.200.0130.04714.57
5.3.190.0170.06314.57
5.3.180.0130.06714.34
5.3.170.0070.06714.57
5.3.160.0070.07714.45
5.3.150.0030.06014.26
5.3.140.0230.05014.71
5.3.130.0130.05014.39
5.3.120.0070.06714.46
5.3.110.0030.05714.32
5.3.100.0070.05314.06
5.3.90.0000.06314.06
5.3.80.0170.06014.05
5.3.70.0030.05713.96
5.3.60.0030.06013.84
5.3.50.0100.06713.83
5.3.40.0200.05014.04
5.3.30.0100.04313.92
5.3.20.0070.05313.71
5.3.10.0030.07313.65
5.3.00.0100.04713.66
5.2.170.0100.05311.15
5.2.160.0070.04711.03
5.2.150.0030.04311.07
5.2.140.0100.04011.16
5.2.130.0070.05310.85
5.2.120.0130.04011.20
5.2.110.0130.04711.19
5.2.100.0130.04311.11
5.2.90.0100.05311.21
5.2.80.0030.06311.01
5.2.70.0200.04011.24
5.2.60.0000.04711.06
5.2.50.0070.05710.93
5.2.40.0030.04311.01
5.2.30.0170.04010.90
5.2.20.0030.05710.97
5.2.10.0130.03710.79
5.2.00.0070.03710.78
5.1.60.0100.04010.38
5.1.50.0130.04010.38
5.1.40.0070.04710.38
5.1.30.0170.03010.38
5.1.20.0070.03710.38
5.1.10.0070.03310.38
5.1.00.0000.04010.38
5.0.50.0070.03710.38
5.0.40.0100.03310.38
5.0.30.0070.04310.38
5.0.20.0100.03010.38
5.0.10.0100.02710.38
5.0.00.0070.04710.38
4.4.90.0030.03010.38
4.4.80.0070.01710.38
4.4.70.0070.02710.38
4.4.60.0000.02310.38
4.4.50.0070.02010.38
4.4.40.0100.03710.38
4.4.30.0030.02710.38
4.4.20.0030.02710.38
4.4.10.0070.02310.38
4.4.00.0000.04710.38
4.3.110.0030.03010.38
4.3.100.0030.02310.38
4.3.90.0030.02310.38
4.3.80.0070.03310.38
4.3.70.0030.02010.38
4.3.60.0070.01710.38
4.3.50.0070.02310.38
4.3.40.0030.04010.38
4.3.30.0070.02010.38
4.3.20.0030.02010.38
4.3.10.0000.03010.38
4.3.00.0070.0237.46

preferences:
36.78 ms | 401 KiB | 5 Q