3v4l.org

run code in 300+ PHP versions simultaneously
<?php preg_match('/(?>[A-Za-z])+(?:[A-Za-z])+/', 'FooBar', $m); var_dump($m); preg_match('/([A-Za-z])++([A-Za-z])+/', 'FooBar', $m); var_dump($m);

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)
8.3.60.0140.00016.50
8.3.50.0100.01023.01
8.3.40.0040.01518.79
8.3.30.0030.01018.95
8.3.20.0040.00420.19
8.3.10.0000.00823.61
8.3.00.0040.00419.50
8.2.180.0080.01116.75
8.2.170.0100.00322.96
8.2.160.0040.01120.34
8.2.150.0080.00024.18
8.2.140.0050.00324.66
8.2.130.0070.01126.16
8.2.120.0030.00621.08
8.2.110.0060.00320.48
8.2.100.0090.00317.78
8.2.90.0070.00319.16
8.2.80.0000.00817.97
8.2.70.0040.00417.63
8.2.60.0080.00019.61
8.2.50.0000.00918.07
8.2.40.0080.00018.03
8.2.30.0000.00817.89
8.2.20.0000.00817.58
8.2.10.0000.00718.01
8.2.00.0000.00717.70
8.1.280.0070.00725.92
8.1.270.0080.00023.97
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0090.00023.92
8.1.230.0080.00419.04
8.1.220.0050.00317.74
8.1.210.0000.00818.77
8.1.200.0050.00517.35
8.1.190.0080.00017.13
8.1.180.0080.00018.10
8.1.170.0090.00018.66
8.1.160.0040.00421.98
8.1.150.0050.00318.74
8.1.140.0080.00017.38
8.1.130.0030.00317.79
8.1.120.0040.00417.37
8.1.110.0050.00317.47
8.1.100.0000.00717.49
8.1.90.0030.00617.39
8.1.80.0000.00817.45
8.1.70.0050.00217.48
8.1.60.0000.00817.62
8.1.50.0030.00617.43
8.1.40.0030.00617.54
8.1.30.0050.00317.57
8.1.20.0060.00317.61
8.1.10.0050.00217.65
8.1.00.0000.00817.41
8.0.300.0050.00318.77
8.0.290.0000.00716.75
8.0.280.0000.00718.24
8.0.270.0040.00417.16
8.0.260.0000.00617.11
8.0.250.0040.00416.85
8.0.240.0030.00316.89
8.0.230.0040.00416.95
8.0.220.0040.00416.84
8.0.210.0040.00416.84
8.0.200.0000.00717.04
8.0.190.0040.00416.88
8.0.180.0000.00716.82
8.0.170.0030.00516.92
8.0.160.0050.00216.81
8.0.150.0040.00416.76
8.0.140.0050.00216.90
8.0.130.0000.00813.30
8.0.120.0050.00316.87
8.0.110.0040.00416.74
8.0.100.0030.00316.77
8.0.90.0000.00716.80
8.0.80.0130.00916.97
8.0.70.0040.00416.89
8.0.60.0000.00716.69
8.0.50.0040.00416.88
8.0.30.0110.01117.21
8.0.20.0150.00817.40
8.0.10.0050.00316.93
8.0.00.0070.01216.76
7.4.330.0050.00015.05
7.4.320.0000.00616.50
7.4.300.0030.00316.58
7.4.290.0030.00316.73
7.4.280.0070.00016.43
7.4.270.0000.00816.60
7.4.260.0060.00316.66
7.4.250.0070.00016.58
7.4.240.0030.00316.67
7.4.230.0000.00716.39
7.4.220.0070.01416.75
7.4.210.0090.00916.68
7.4.200.0070.00016.66
7.4.160.0060.00916.42
7.4.150.0070.01017.40
7.4.140.0130.00717.86
7.4.130.0080.00916.48
7.4.120.0070.01016.54
7.4.110.0040.01216.50
7.4.100.0100.00716.49
7.4.90.0110.00616.60
7.4.80.0060.01119.39
7.4.70.0140.00416.68
7.4.60.0100.00716.48
7.4.50.0030.00616.71
7.4.40.0130.00316.44
7.4.30.0120.00416.52
7.4.00.0100.00615.10
7.3.330.0030.00513.02
7.3.320.0000.00513.19
7.3.310.0000.00716.36
7.3.300.0030.00316.20
7.3.290.0030.01116.29
7.3.280.0080.01016.25
7.3.270.0160.00417.40
7.3.260.0000.01616.46
7.3.250.0060.01316.47
7.3.240.0140.00816.30
7.3.230.0190.00016.58
7.3.210.0060.01716.38
7.3.200.0110.00719.39
7.3.190.0160.00516.44
7.3.180.0070.01016.35
7.3.170.0060.01016.41
7.3.160.0100.00716.55
7.3.120.0090.00914.97
7.3.110.0140.00414.80
7.3.100.0080.00414.70
7.3.90.0090.00614.70
7.3.80.0070.00714.50
7.3.70.0090.00314.83
7.3.60.0040.00714.69
7.3.50.0060.00914.46
7.3.40.0040.00814.61
7.3.30.0030.00914.79
7.3.20.0030.01016.69
7.3.10.0040.01116.41
7.3.00.0100.00316.73
7.2.330.0040.01416.62
7.2.320.0080.01616.52
7.2.310.0080.01016.46
7.2.300.0070.01016.71
7.2.290.0100.00716.75
7.2.250.0040.01114.76
7.2.240.0060.00914.66
7.2.230.0080.00315.05
7.2.220.0090.00614.67
7.2.210.0070.01014.98
7.2.200.0040.01515.06
7.2.190.0030.01014.92
7.2.180.0030.01014.84
7.2.170.0120.00314.77
7.2.60.0090.00617.00
7.2.00.0030.00919.59
7.1.330.0150.00015.52
7.1.320.0030.01016.02
7.1.310.0070.00715.77
7.1.300.0080.00816.00
7.1.290.0090.00315.90
7.1.280.0060.00915.48
7.1.270.0000.01515.99
7.1.260.0040.00815.92
7.1.200.0030.00715.99
7.1.100.0030.00918.16
7.1.70.0000.00717.34
7.1.60.0070.01819.40
7.1.50.0090.00916.77
7.1.00.0100.07022.35
7.0.200.0050.00316.88
7.0.140.0000.07721.97
7.0.60.0030.06319.98
7.0.50.0130.07017.89
7.0.40.0130.04320.21
7.0.30.0200.05020.14
7.0.20.0270.03320.03
7.0.10.0070.09020.03
7.0.00.0000.05020.10
5.6.280.0130.06321.06
5.6.210.0070.06020.64
5.6.200.0000.05318.16
5.6.190.0100.07720.64
5.6.180.0300.06720.39
5.6.170.0330.07720.45
5.6.160.0070.04020.43
5.6.150.0070.04018.11
5.6.140.0100.07018.20
5.6.130.0100.03718.16
5.6.120.0200.06720.96
5.6.110.0100.08021.13
5.6.100.0130.08321.10
5.6.90.0100.07721.07
5.6.80.0070.03320.36
5.5.350.4330.03720.43
5.5.340.0100.07017.98
5.5.330.0070.04020.07
5.5.320.0370.04720.13
5.5.310.0370.07720.12
5.5.300.0130.08018.00
5.5.290.0030.04017.91
5.5.280.0030.05020.64
5.5.270.0100.06320.62
5.5.260.0100.06320.86
5.5.250.0070.04720.69
5.5.240.0300.07020.36
5.4.450.0570.04019.58
5.4.440.0600.04719.49
5.4.430.0200.05019.58
5.4.420.0170.04319.23
5.4.410.0300.03719.44
5.4.400.0330.04019.09
5.4.390.0430.04319.22
5.4.380.0300.06318.71
5.4.370.0200.05718.60
5.4.360.0300.04718.59
5.4.350.0330.04318.74
5.4.340.0130.05018.53
5.4.320.0060.03812.45
5.4.310.0050.03812.45
5.4.300.0060.03412.45
5.4.290.0050.03712.45
5.4.280.0070.03812.34
5.4.270.0060.04412.35
5.4.260.0070.04312.35
5.4.250.0030.04212.35
5.4.240.0020.04012.35
5.4.230.0080.03612.34
5.4.220.0050.03612.34
5.4.210.0080.03512.34
5.4.200.0070.03712.34
5.4.190.0070.03912.33
5.4.180.0060.03712.33
5.4.170.0050.03612.35
5.4.160.0030.03812.34
5.4.150.0050.03712.34
5.4.140.0050.03812.02
5.4.130.0070.03512.01
5.4.120.0050.03811.97
5.4.110.0060.03611.96
5.4.100.0060.03511.96
5.4.90.0030.04811.96
5.4.80.0080.03411.96
5.4.70.0100.03511.96
5.4.60.0050.04211.96
5.4.50.0070.05311.96
5.4.40.0080.04711.95
5.4.30.0050.05011.95
5.4.20.0070.03911.95
5.4.10.0090.03111.95
5.4.00.0070.03911.43
5.3.290.0080.04012.80
5.3.280.0070.04812.71
5.3.270.0080.04312.72
5.3.260.0050.03912.72
5.3.250.0060.03912.72
5.3.240.0050.03812.71
5.3.230.0080.03712.71
5.3.220.0050.03912.68
5.3.210.0060.04012.68
5.3.200.0040.03912.68
5.3.190.0050.03812.67
5.3.180.0070.04212.67
5.3.170.0090.03612.67
5.3.160.0060.03812.67
5.3.150.0060.04012.67
5.3.140.0040.04312.66
5.3.130.0070.04312.66
5.3.120.0050.03912.66
5.3.110.0060.03912.66
5.3.100.0040.04412.12
5.3.90.0100.04912.08
5.3.80.0090.04512.08
5.3.70.0040.04012.08
5.3.60.0080.03912.06
5.3.50.0070.03612.00
5.3.40.0060.03612.00
5.3.30.0080.03311.95
5.3.20.0030.04211.73
5.3.10.0040.03811.70
5.3.00.0090.03511.68
5.2.170.0050.0319.19
5.2.160.0070.0319.19
5.2.150.0060.0309.19
5.2.140.0050.0319.19
5.2.130.0040.0399.15
5.2.120.0040.0439.14
5.2.110.0050.0299.15
5.2.100.0030.0299.15
5.2.90.0080.0359.15
5.2.80.0060.0399.15
5.2.70.0070.0369.15
5.2.60.0050.0329.10
5.2.50.0060.0369.07
5.2.40.0070.0299.05
5.2.30.0040.0389.04
5.2.20.0050.0369.02
5.2.10.0070.0268.93
5.2.00.0050.0298.79
5.1.60.0040.0248.07
5.1.50.0050.0248.07
5.1.40.0090.0198.05
5.1.30.0050.0278.40
5.1.20.0040.0298.42
5.1.10.0050.0268.14
5.1.00.0050.0248.14
5.0.50.0040.0216.63
5.0.40.0050.0186.48
5.0.30.0060.0296.30
5.0.20.0050.0216.27
5.0.10.0050.0196.25
5.0.00.0040.0356.24
4.4.90.0030.0214.78
4.4.80.0040.0164.75
4.4.70.0050.0174.76
4.4.60.0020.0174.76
4.4.50.0030.0194.77
4.4.40.0040.0294.70
4.4.30.0040.0174.76
4.4.20.0020.0174.84
4.4.10.0030.0154.85
4.4.00.0030.0244.76
4.3.110.0030.0164.67
4.3.100.0040.0174.67
4.3.90.0020.0174.63
4.3.80.0010.0314.58
4.3.70.0020.0184.63
4.3.60.0050.0164.63
4.3.50.0010.0174.63
4.3.40.0010.0254.54
4.3.30.0000.0193.29
4.3.20.0020.0173.27
4.3.10.0030.0153.23
4.3.00.0030.01715.98

preferences:
41.83 ms | 401 KiB | 5 Q