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)
8.3.60.0130.00318.39
8.3.50.0160.00622.17
8.3.40.0000.01818.95
8.3.30.0060.00918.95
8.3.20.0040.00420.33
8.3.10.0080.00021.95
8.3.00.0000.01022.34
8.2.180.0140.00718.40
8.2.170.0120.00322.96
8.2.160.0070.00720.94
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0060.00326.16
8.2.120.0040.00419.48
8.2.110.0090.00022.33
8.2.100.0080.00419.59
8.2.90.0040.00419.17
8.2.80.0030.00517.97
8.2.70.0040.00417.75
8.2.60.0120.00017.93
8.2.50.0030.00518.07
8.2.40.0000.00918.16
8.2.30.0050.00218.16
8.2.20.0040.00417.68
8.2.10.0050.00319.52
8.2.00.0040.00417.66
8.1.280.0140.00725.92
8.1.270.0080.00021.84
8.1.260.0050.00326.35
8.1.250.0000.00728.09
8.1.240.0090.00022.14
8.1.230.0060.00619.01
8.1.220.0040.00417.74
8.1.210.0080.00018.77
8.1.200.0000.00917.13
8.1.190.0060.00317.38
8.1.180.0080.00018.51
8.1.170.0000.00918.63
8.1.160.0000.00721.98
8.1.150.0040.00418.62
8.1.140.0040.00417.57
8.1.130.0040.00417.72
8.1.120.0070.00017.57
8.1.110.0000.00817.43
8.1.100.0000.00817.51
8.1.90.0050.00217.48
8.1.80.0000.00717.44
8.1.70.0030.00317.43
8.1.60.0060.00317.68
8.1.50.0030.00617.66
8.1.40.0000.00817.58
8.1.30.0030.00517.66
8.1.20.0000.00817.73
8.1.10.0000.00717.68
8.1.00.0000.00817.61
8.0.300.0000.00718.77
8.0.290.0000.00716.93
8.0.280.0000.00718.32
8.0.270.0000.00717.22
8.0.260.0030.00316.88
8.0.250.0070.00017.13
8.0.240.0040.00417.12
8.0.230.0030.00317.11
8.0.220.0030.00316.90
8.0.210.0040.00416.90
8.0.200.0000.00717.09
8.0.190.0040.00716.98
8.0.180.0050.00317.07
8.0.170.0000.00817.05
8.0.160.0040.00417.03
8.0.150.0040.00417.05
8.0.140.0040.00316.93
8.0.130.0000.00613.40
8.0.120.0030.00516.89
8.0.110.0030.00616.92
8.0.100.0000.00716.83
8.0.90.0000.00816.92
8.0.80.0060.01117.03
8.0.70.0070.00016.96
8.0.60.0030.00517.04
8.0.50.0000.00717.00
8.0.30.0100.01217.05
8.0.20.0110.01217.40
8.0.10.0000.00817.22
8.0.00.0070.01016.84
7.4.330.0080.00015.00
7.4.320.0040.00416.75
7.4.300.0000.00616.77
7.4.290.0000.00716.73
7.4.280.0030.00316.73
7.4.270.0000.00716.66
7.4.260.0070.00016.73
7.4.250.0070.00016.63
7.4.240.0060.00216.77
7.4.230.0000.00716.54
7.4.220.0090.00916.70
7.4.210.0080.00716.69
7.4.200.0000.00716.75
7.4.190.0040.00416.82
7.4.160.0100.01016.63
7.4.150.0060.01217.40
7.4.140.0070.01217.86
7.4.130.0130.00716.63
7.4.120.0070.00916.69
7.4.110.0070.01116.89
7.4.100.0140.00716.70
7.4.90.0140.00416.71
7.4.80.0110.00819.39
7.4.70.0150.00316.61
7.4.60.0100.00716.59
7.4.50.0060.00316.57
7.4.40.0030.01322.77
7.4.30.0070.01316.81
7.4.00.0070.01014.96
7.3.330.0000.00513.30
7.3.320.0060.00013.27
7.3.310.0000.00716.41
7.3.300.0040.00416.41
7.3.290.0040.01516.44
7.3.280.0050.01116.39
7.3.270.0060.01017.40
7.3.260.0110.00816.64
7.3.250.0140.00716.62
7.3.240.0150.00716.75
7.3.230.0110.01116.43
7.3.210.0090.00816.58
7.3.200.0070.01019.39
7.3.190.0140.00316.64
7.3.180.0070.01416.61
7.3.170.0120.00416.61
7.3.160.0120.00616.80
7.3.120.0070.00915.07
7.3.110.0080.01015.07
7.3.100.0140.00414.90
7.3.90.0060.00914.95
7.3.80.0090.00314.71
7.3.70.0080.00415.05
7.3.60.0120.00314.98
7.3.50.0030.00914.71
7.3.40.0090.00914.70
7.3.30.0100.00314.78
7.3.20.0030.01016.75
7.3.10.0070.00716.87
7.3.00.0070.00416.67
7.2.330.0140.00716.69
7.2.320.0160.00916.51
7.2.310.0110.00616.53
7.2.300.0100.00616.64
7.2.290.0060.00916.59
7.2.250.0070.01415.16
7.2.240.0030.01415.04
7.2.230.0080.00815.30
7.2.220.0060.00614.98
7.2.210.0030.01315.27
7.2.200.0070.00715.14
7.2.190.0070.01015.12
7.2.180.0060.00915.07
7.2.170.0130.00615.13
7.2.60.0040.00816.88
7.2.00.0000.01619.45
7.1.330.0000.01516.03
7.1.320.0040.01115.85
7.1.310.0060.00916.13
7.1.300.0100.00315.97
7.1.290.0030.01315.89
7.1.280.0090.00616.15
7.1.270.0030.01316.11
7.1.260.0000.01315.99
7.1.200.0180.00615.16
7.1.100.0090.00317.91
7.1.70.0070.00717.34
7.1.60.0100.01319.82
7.1.50.0040.01817.11
7.1.00.0000.07722.29
7.0.200.0170.00016.79
7.0.140.0000.07321.97
7.0.60.0100.07720.01
7.0.50.0070.08717.92
7.0.40.0070.05020.11
7.0.30.0200.04020.17
7.0.20.0330.07320.02
7.0.10.0300.07320.18
7.0.00.0130.07320.32
5.6.280.0070.07020.90
5.6.210.0030.04020.51
5.6.200.0130.07318.21
5.6.190.0130.08320.45
5.6.180.3230.03320.69
5.6.170.0370.06720.53
5.6.160.0070.08320.72
5.6.150.0000.04318.14
5.6.140.0100.07718.10
5.6.130.0070.04018.11
5.6.120.0030.05720.99
5.6.110.0070.07021.13
5.6.100.0030.04320.99
5.6.90.0200.06720.96
5.6.80.0100.07720.33
5.6.70.0330.07020.41
5.5.350.0000.08320.42
5.5.340.0030.04018.04
5.5.330.0130.08320.38
5.5.320.0230.06320.53
5.5.310.0170.05720.32
5.5.300.0100.06317.98
5.5.290.0130.05017.97
5.5.280.0070.04720.96
5.5.270.0030.09020.86
5.5.260.0030.06020.76
5.5.250.0100.05320.58
5.5.240.0030.07020.26
5.4.450.0130.06019.49
5.4.440.0500.06319.29
5.4.430.0170.05019.33
5.4.420.0170.05019.27
5.4.410.0070.06019.44
5.4.400.1000.00018.84
5.4.390.1330.00018.68
5.4.380.0270.05318.50
5.4.370.0370.04018.73
5.4.360.0170.04718.63
5.4.350.0330.05718.70
5.4.340.0470.04718.49
5.4.320.0120.03512.47
5.4.310.0030.04112.46
5.4.300.0030.04512.46
5.4.290.0050.04012.46
5.4.280.0100.03212.36
5.4.270.0040.04112.36
5.4.260.0030.05718.91
5.4.250.0100.08018.74
5.4.240.0130.06019.00
5.4.230.0070.06318.92
5.4.220.0130.06718.66
5.4.210.0030.07719.00
5.4.200.0030.07318.91
5.4.190.0100.07318.84
5.4.180.0030.07318.91
5.4.170.0170.06718.78
5.4.160.0070.05318.92
5.4.150.0270.06018.74
5.4.140.0130.05016.35
5.4.130.0170.04316.50
5.4.120.0170.05016.30
5.4.110.0170.04016.50
5.4.100.0070.06716.50
5.4.90.0100.06316.51
5.4.80.0200.05716.35
5.4.70.0070.05716.27
5.4.60.0130.06016.20
5.4.50.0100.05016.34
5.4.40.0170.05016.33
5.4.30.0130.05716.37
5.4.20.0200.07016.44
5.4.10.0130.07016.18
5.4.00.0130.05015.78
5.3.290.0070.03812.80
5.3.280.0100.05714.70
5.3.270.0070.05314.39
5.3.260.0070.06314.53
5.3.250.0100.04714.71
5.3.240.0070.06714.49
5.3.230.0130.04714.62
5.3.220.0170.04314.61
5.3.210.0130.04714.62
5.3.200.0100.07314.59
5.3.190.0070.05714.37
5.3.180.0100.06014.63
5.3.170.0100.05314.63
5.3.160.0130.06714.46
5.3.150.0170.06014.52
5.3.140.0100.06314.47
5.3.130.0170.07014.60
5.3.120.0100.06014.47
5.3.110.0170.05314.61
5.3.100.0100.06713.92
5.3.90.0200.04714.04
5.3.80.0130.04314.20
5.3.70.0130.05013.74
5.3.60.0070.07313.87
5.3.50.0100.05014.13
5.3.40.0030.05714.02
5.3.30.0130.07013.84
5.3.20.0100.04313.81
5.3.10.0230.04313.67
5.3.00.0130.05713.55
5.2.170.0070.04311.08
5.2.160.0130.03311.10
5.2.150.0000.04711.28
5.2.140.0070.06311.07
5.2.130.0130.03311.27
5.2.120.0130.05011.02
5.2.110.0070.04311.04
5.2.100.0130.05711.07
5.2.90.0070.04711.02
5.2.80.0100.04311.22
5.2.70.0130.03311.27
5.2.60.0100.05710.97
5.2.50.0100.05311.13
5.2.40.0070.04011.04
5.2.30.0100.04710.94
5.2.20.0030.04710.90
5.2.10.0130.04710.95
5.2.00.0030.06010.50
5.1.60.0030.05010.38
5.1.50.0130.03710.38
5.1.40.0030.03310.38
5.1.30.0070.05010.38
5.1.20.0030.05310.45
5.1.10.0070.05010.38
5.1.00.0070.04010.38
5.0.50.0070.03010.38
5.0.40.0100.03310.38
5.0.30.0030.04710.38
5.0.20.0000.03010.38
5.0.10.0030.02710.38
5.0.00.0000.06010.38
4.4.90.0000.0307.05
4.4.80.0030.0207.05
4.4.70.0030.02310.38
4.4.60.0130.02010.38
4.4.50.0000.02310.38
4.4.40.0030.04310.38
4.4.30.0130.02010.38
4.4.20.0030.03310.38
4.4.10.0100.02010.38
4.4.00.0030.03710.38
4.3.110.0100.02310.38
4.3.100.0030.02310.38
4.3.90.0000.02310.38
4.3.80.0100.03710.38
4.3.70.0000.03310.38
4.3.60.0070.02010.38
4.3.50.0130.01310.38
4.3.40.0000.03310.38
4.3.30.0000.03310.38
4.3.20.0000.03310.38
4.3.10.0070.02710.38
4.3.00.0030.0207.46

preferences:
37.99 ms | 401 KiB | 5 Q