3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = "this (is (a) test) with (two parenthesis) duh"; $regex = '#\((([^()]+|(?R))*)\)#'; if (preg_match_all($regex, $string ,$matches)) { echo implode(' ', $matches[1]); } else { //no parenthesis echo $string; }

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)
8.3.70.0110.01116.58
8.3.60.0100.01018.27
8.3.50.0100.01022.11
8.3.40.0110.00718.96
8.3.30.0070.00719.04
8.3.20.0060.00920.21
8.3.10.0000.00721.73
8.3.00.0000.00817.93
8.2.180.0070.01317.00
8.2.170.0170.00322.96
8.2.160.0100.00320.39
8.2.150.0040.00424.18
8.2.140.0060.00324.66
8.2.130.0120.00626.16
8.2.120.0000.00821.02
8.2.110.0090.00019.24
8.2.100.0120.00018.10
8.2.90.0080.00018.22
8.2.80.0050.00317.97
8.2.70.0000.00817.75
8.2.60.0090.00017.92
8.2.50.0080.00018.07
8.2.40.0000.00817.92
8.2.30.0120.00018.21
8.2.20.0040.00417.79
8.2.10.0000.00718.04
8.2.00.0000.00817.72
8.1.280.0070.00725.92
8.1.270.0030.00623.78
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0030.00622.19
8.1.230.0090.00321.04
8.1.220.0040.00417.74
8.1.210.0080.00018.92
8.1.200.0060.00317.24
8.1.190.0040.00417.25
8.1.180.0040.00418.10
8.1.170.0030.00518.74
8.1.160.0040.00421.90
8.1.150.0040.00418.80
8.1.140.0040.00417.46
8.1.130.0000.00717.77
8.1.120.0040.00417.48
8.1.110.0000.00817.51
8.1.100.0070.00017.55
8.1.90.0040.00417.59
8.1.80.0050.00217.59
8.1.70.0050.00317.52
8.1.60.0040.00417.68
8.1.50.0000.00817.66
8.1.40.0040.00417.57
8.1.30.0000.00817.78
8.1.20.0030.00517.79
8.1.10.0040.00417.78
8.1.00.0000.00817.56
8.0.300.0000.00720.14
8.0.290.0080.00016.88
8.0.280.0000.00718.48
8.0.270.0070.00017.29
8.0.260.0000.00817.29
8.0.250.0020.00517.00
8.0.240.0000.00717.09
8.0.230.0030.00317.05
8.0.220.0040.00416.88
8.0.210.0000.00716.89
8.0.200.0030.00316.96
8.0.190.0040.00417.06
8.0.180.0040.00416.99
8.0.170.0040.00417.04
8.0.160.0040.00316.99
8.0.150.0070.00016.84
8.0.140.0040.00416.79
8.0.130.0050.00013.47
8.0.120.0000.00916.95
8.0.110.0040.00417.00
8.0.100.0000.00716.98
8.0.90.0040.00416.86
8.0.80.0120.00316.98
8.0.70.0040.00417.05
8.0.60.0050.00316.77
8.0.50.0080.00016.85
8.0.30.0150.00717.43
8.0.20.0060.01217.40
8.0.10.0000.00717.00
8.0.00.0110.00916.96
7.4.330.0000.00515.00
7.4.320.0000.00716.65
7.4.300.0000.00716.75
7.4.290.0060.00616.71
7.4.280.0050.00216.57
7.4.270.0040.00416.77
7.4.260.0040.00416.79
7.4.250.0000.00716.73
7.4.240.0040.00316.65
7.4.230.0030.00316.68
7.4.220.0120.00916.71
7.4.210.0140.00416.70
7.4.200.0050.00516.79
7.4.160.0120.00316.64
7.4.150.0040.01417.40
7.4.140.0080.01017.86
7.4.130.0130.00416.88
7.4.120.0080.00916.66
7.4.110.0180.00016.74
7.4.100.0110.00216.82
7.4.90.0150.00616.70
7.4.80.0100.00719.39
7.4.70.0150.01716.85
7.4.60.0100.01216.59
7.4.50.0020.00316.71
7.4.40.0100.00716.74
7.4.30.0040.01616.49
7.4.00.0140.00414.89
7.3.330.0030.00313.28
7.3.320.0060.00013.25
7.3.310.0000.00816.44
7.3.300.0000.00716.32
7.3.290.0050.00916.39
7.3.280.0120.00716.36
7.3.270.0150.00317.40
7.3.260.0030.02016.82
7.3.240.0070.01016.74
7.3.230.0130.00616.55
7.3.210.0120.00316.53
7.3.200.0060.01019.39
7.3.190.0080.00916.65
7.3.180.0130.01016.77
7.3.170.0130.00316.70
7.3.160.0040.01216.45
7.3.120.0060.00615.04
7.2.330.0040.01916.67
7.2.320.0040.01216.70
7.2.310.0130.00316.95
7.2.300.0060.00916.73
7.2.290.0090.01216.79
7.2.00.0030.00919.22
7.1.200.0050.01115.92
7.1.100.0070.00718.10
7.1.70.0050.00517.28
7.1.60.0160.00919.25
7.1.50.0130.00917.06
7.1.00.0000.08022.56
7.0.200.0000.00717.05
7.0.140.0070.07022.04
7.0.60.0170.04720.07
7.0.50.0070.04717.91
7.0.40.0100.07720.24
7.0.30.0300.07720.02
7.0.20.0270.04720.22
7.0.10.0130.04020.06
7.0.00.0170.07720.14
5.6.280.0000.07321.13
5.6.210.0000.04320.74
5.6.200.0000.07318.24
5.6.190.0030.09020.39
5.6.180.0270.05020.35
5.6.170.0200.04020.33
5.6.160.0070.04020.39
5.6.150.0070.08318.23
5.6.140.0000.04318.15
5.6.130.0070.08018.11
5.6.120.0070.04020.98
5.6.110.0000.08021.13
5.6.100.0000.08021.12
5.6.90.0070.07321.01
5.6.80.0030.05720.42
5.5.350.0230.08720.40
5.5.340.0230.06317.91
5.5.330.0070.07320.14
5.5.320.0000.06720.24
5.5.310.0230.07320.20
5.5.300.0070.05717.95
5.5.290.0030.04317.95
5.5.280.0000.05320.85
5.5.270.0170.05720.79
5.5.260.0100.07320.71
5.5.250.0030.04720.58
5.5.240.0200.05020.16
5.4.450.0130.04719.21
5.4.440.0200.05719.25
5.4.430.0200.03019.54
5.4.420.0300.04019.38
5.4.410.0170.04319.33
5.4.400.0530.03719.09
5.4.390.0230.04719.12
5.4.380.0130.05718.70
5.4.370.0170.05018.66
5.4.360.0100.05318.62
5.4.350.0100.05718.62
5.4.340.0130.05318.69
5.4.320.0040.04112.45
5.4.310.0090.03612.45
5.4.300.0030.04112.45
5.4.290.0090.03712.45
5.4.280.0060.03712.35
5.4.270.0060.03812.35
5.4.260.0050.03912.35
5.4.250.0050.04512.35
5.4.240.0080.04312.13
5.4.230.0080.03812.34
5.4.220.0070.03512.34
5.4.210.0060.03512.34
5.4.200.0110.03312.34
5.4.190.0040.03812.34
5.4.180.0070.03612.34
5.4.170.0070.03612.35
5.4.160.0070.04212.35
5.4.150.0080.03512.34
5.4.140.0070.04312.03
5.4.130.0080.03612.02
5.4.120.0050.03711.97
5.4.110.0060.03811.96
5.4.100.0140.03111.97
5.4.90.0050.04011.96
5.4.80.0050.03811.96
5.4.70.0070.03811.96
5.4.60.0080.03311.96
5.4.50.0090.03311.96
5.4.40.0090.04111.95
5.4.30.0090.04311.95
5.4.20.0060.03611.95
5.4.10.0000.04211.95
5.4.00.0060.03511.43
5.3.290.0080.05612.80
5.3.280.0080.03612.71
5.3.270.0080.03712.72
5.3.260.0080.03812.72
5.3.250.0080.03612.72
5.3.240.0100.04312.72
5.3.230.0030.04412.71
5.3.220.0080.03612.68
5.3.210.0070.04012.68
5.3.200.0070.03512.68
5.3.190.0050.03812.68
5.3.180.0050.03712.68
5.3.170.0070.03512.67
5.3.160.0070.03512.67
5.3.150.0080.03612.68
5.3.140.0050.03812.66
5.3.130.0060.03912.66
5.3.120.0070.03812.66
5.3.110.0070.03812.66
5.3.100.0080.03612.12
5.3.90.0070.03612.08
5.3.80.0070.03712.07
5.3.70.0070.03612.08
5.3.60.0060.03612.07
5.3.50.0070.03412.00
5.3.40.0040.04012.00
5.3.30.0060.03711.96
5.3.20.0070.03611.74
5.3.10.0090.03711.70
5.3.00.0060.03611.69
5.2.170.0040.0319.19
5.2.160.0040.0319.19
5.2.150.0060.0309.19
5.2.140.0050.0309.18
5.2.130.0020.0329.14
5.2.120.0030.0309.14
5.2.110.0050.0299.15
5.2.100.0060.0289.15
5.2.90.0060.0289.15
5.2.80.0010.0339.14
5.2.70.0040.0319.14
5.2.60.0050.0329.10
5.2.50.0060.0299.06
5.2.40.0040.0309.05
5.2.30.0060.0289.03
5.2.20.0060.0279.02
5.2.10.0050.0288.93
5.2.00.0060.0298.79
5.1.60.0040.0248.07
5.1.50.0040.0258.07
5.1.40.0050.0248.05
5.1.30.0040.0268.41
5.1.20.0030.0288.43
5.1.10.0050.0258.15
5.1.00.0030.0268.15
5.0.50.0050.0236.63
5.0.40.0040.0186.48
5.0.30.0020.0356.30
5.0.20.0030.0256.27
5.0.10.0050.0186.25
5.0.00.0040.0306.24
4.4.90.0030.0184.77
4.4.80.0020.0164.76
4.4.70.0000.0184.76
4.4.60.0040.0144.76
4.4.50.0010.0174.77
4.4.40.0030.0294.71
4.4.30.0050.0134.76
4.4.20.0040.0144.85
4.4.10.0050.0144.85
4.4.00.0030.0254.76
4.3.110.0020.0164.67
4.3.100.0020.0164.67
4.3.90.0020.0154.64
4.3.80.0050.0224.59
4.3.70.0030.0154.63
4.3.60.0010.0164.63
4.3.50.0050.0134.63
4.3.40.0010.0254.54
4.3.30.0010.0173.30
4.3.20.0010.0173.27
4.3.10.0040.0143.23
4.3.00.0030.02015.27

preferences:
37.58 ms | 401 KiB | 5 Q