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)
8.3.70.0130.00616.63
8.3.60.0140.00018.18
8.3.50.0110.00722.93
8.3.40.0100.00719.01
8.3.30.0070.00719.01
8.3.20.0040.00420.34
8.3.10.0050.00323.59
8.3.00.0030.00519.38
8.2.180.0040.01116.75
8.2.170.0030.01022.96
8.2.160.0070.00720.52
8.2.150.0000.00824.18
8.2.140.0050.00324.66
8.2.130.0080.00026.16
8.2.120.0060.00321.02
8.2.110.0060.01620.48
8.2.100.0040.00717.72
8.2.90.0030.00618.80
8.2.80.0000.00817.97
8.2.70.0040.00417.50
8.2.60.0040.00417.68
8.2.50.0000.00818.07
8.2.40.0040.00418.09
8.2.30.0040.00417.84
8.2.20.0040.00417.61
8.2.10.0050.00217.99
8.2.00.0040.00417.55
8.1.280.0030.01225.92
8.1.270.0040.00423.87
8.1.260.0070.00026.35
8.1.250.0050.00328.09
8.1.240.0060.00323.83
8.1.230.0080.00419.16
8.1.220.0050.00317.74
8.1.210.0040.00418.77
8.1.200.0040.00417.35
8.1.190.0000.00817.25
8.1.180.0000.00818.10
8.1.170.0050.00318.60
8.1.160.0030.00521.97
8.1.150.0040.00418.79
8.1.140.0000.00817.49
8.1.130.0070.00017.84
8.1.120.0000.00717.37
8.1.110.0000.00717.39
8.1.100.0000.00717.47
8.1.90.0100.00017.55
8.1.80.0000.00817.36
8.1.70.0030.00317.43
8.1.60.0050.00317.64
8.1.50.0000.00817.55
8.1.40.0050.00317.50
8.1.30.0040.00417.67
8.1.20.0000.00717.68
8.1.10.0000.00717.59
8.1.00.0040.00417.51
8.0.300.0030.00618.77
8.0.290.0000.00716.63
8.0.280.0050.00218.34
8.0.270.0070.00017.06
8.0.260.0060.00017.10
8.0.250.0070.00016.86
8.0.240.0040.00416.88
8.0.230.0030.00316.83
8.0.220.0040.00416.90
8.0.210.0040.00416.89
8.0.200.0000.00716.96
8.0.190.0040.00416.96
8.0.180.0030.00516.81
8.0.170.0000.00816.79
8.0.160.0030.00516.91
8.0.150.0040.00416.84
8.0.140.0040.00416.88
8.0.130.0000.00713.32
8.0.120.0000.00816.90
8.0.110.0080.00016.88
8.0.100.0000.00716.74
8.0.90.0000.00816.83
8.0.80.0100.00616.90
8.0.70.0080.00016.94
8.0.60.0040.00416.87
8.0.50.0040.00416.97
8.0.30.0090.01117.08
8.0.20.0090.01217.40
8.0.10.0040.00416.95
8.0.00.0130.00516.61
7.4.330.0000.00515.05
7.4.320.0030.00316.61
7.4.300.0060.00016.57
7.4.290.0030.00316.66
7.4.280.0090.00016.58
7.4.270.0000.00816.56
7.4.260.0060.00316.50
7.4.250.0040.00416.65
7.4.240.0050.00216.54
7.4.230.0000.00716.79
7.4.220.0090.01016.68
7.4.210.0110.00416.55
7.4.200.0030.00316.71
7.4.160.0080.00816.50
7.4.150.0130.00417.40
7.4.140.0150.00317.86
7.4.130.0140.00616.52
7.4.120.0130.00716.70
7.4.110.0080.00916.37
7.4.100.0090.00916.36
7.4.90.0140.00416.73
7.4.80.0140.00519.39
7.4.70.0060.01216.62
7.4.60.0130.00316.46
7.4.50.0060.00316.45
7.4.40.0140.00316.49
7.4.30.0030.01316.62
7.4.00.0030.01214.79
7.3.330.0040.00413.04
7.3.320.0000.00513.02
7.3.310.0000.00716.26
7.3.300.0040.00416.26
7.3.290.0030.01016.33
7.3.280.0080.00816.33
7.3.270.0140.00617.40
7.3.260.0080.00916.44
7.3.250.0100.00616.37
7.3.240.0090.00916.45
7.3.230.0060.01016.39
7.3.210.0120.00616.50
7.3.200.0160.00619.39
7.3.190.0120.00616.16
7.3.180.0110.00516.57
7.3.170.0060.01516.51
7.3.160.0060.00916.31
7.3.10.0030.01016.76
7.3.00.0000.01516.43
7.2.330.0110.00816.37
7.2.320.0120.00616.62
7.2.310.0030.01316.65
7.2.300.0030.01316.62
7.2.290.0170.00016.50
7.2.130.0030.01016.93
7.2.120.0110.00316.86
7.2.110.0040.01116.57
7.2.100.0000.01416.59
7.2.90.0030.00716.90
7.2.80.0070.00716.96
7.2.70.0060.00316.99
7.2.60.0130.00316.97
7.2.50.0060.00916.93
7.2.40.0090.00916.75
7.2.30.0060.00916.88
7.2.20.0070.00417.09
7.2.10.0030.01316.89
7.2.00.0080.00518.24
7.1.250.0090.00615.93
7.1.100.0030.00918.13
7.1.70.0040.00717.33
7.1.60.0110.01119.40
7.1.50.0100.01417.10
7.1.00.0070.07022.42
7.0.200.0030.00616.79
7.0.140.0030.07721.93
7.0.60.0070.07721.59
7.0.50.0070.05017.90
7.0.40.0000.05320.00
7.0.30.0570.06720.18
7.0.20.0270.08320.14
7.0.10.0170.07020.05
7.0.00.0070.09020.00
5.6.280.0000.07721.12
5.6.210.0030.06720.63
5.6.200.0100.07718.16
5.6.190.0030.04320.59
5.6.180.0330.06020.49
5.6.170.0400.07320.44
5.6.160.0130.03320.41
5.6.150.0130.03718.09
5.6.140.0070.04018.21
5.6.130.0030.04718.21
5.6.120.0070.08720.98
5.6.110.0200.06720.98
5.6.100.0100.06321.12
5.6.90.0070.08721.06
5.6.80.0070.05020.36
5.5.350.2800.03020.51
5.5.340.0000.04317.95
5.5.330.0100.08320.25
5.5.320.0500.06020.26
5.5.310.0330.07720.17
5.5.300.0100.07717.96
5.5.290.0000.09017.88
5.5.280.0130.08020.96
5.5.270.0070.04020.87
5.5.260.0130.08020.66
5.5.250.0070.07020.69
5.5.240.0170.03020.17
5.4.450.0430.05019.43
5.4.440.0330.03719.57
5.4.430.0430.04019.40
5.4.420.0170.04019.42
5.4.410.0670.03719.11
5.4.400.0300.04719.14
5.4.390.0270.04718.93
5.4.380.0200.08018.70
5.4.370.0900.05318.70
5.4.360.0170.05318.68
5.4.350.0200.04718.56
5.4.340.0170.05018.57
5.4.320.0040.05212.45
5.4.310.0110.04912.45
5.4.300.0060.03512.45
5.4.290.0000.04312.45
5.4.280.0050.03912.34
5.4.270.0060.03512.34
5.4.260.0100.03312.34
5.4.250.0040.03912.34
5.4.240.0040.03812.34
5.4.230.0030.04012.34
5.4.220.0050.03512.34
5.4.210.0060.03512.34
5.4.200.0050.03812.34
5.4.190.0040.03712.34
5.4.180.0040.03812.34
5.4.170.0040.03812.35
5.4.160.0070.03512.34
5.4.150.0070.03612.34
5.4.140.0040.05512.02
5.4.130.0050.03712.01
5.4.120.0040.03611.96
5.4.110.0050.03611.96
5.4.100.0040.03711.96
5.4.90.0050.03611.96
5.4.80.0020.04011.96
5.4.70.0070.03511.96
5.4.60.0040.04611.96
5.4.50.0100.04511.96
5.4.40.0050.03711.95
5.4.30.0030.04311.95
5.4.20.0050.04811.95
5.4.10.0030.03811.95
5.4.00.0070.03411.44
5.3.290.0020.04112.80
5.3.280.0100.04412.71
5.3.270.0060.03712.73
5.3.260.0040.04012.72
5.3.250.0050.03712.72
5.3.240.0060.03812.72
5.3.230.0090.03412.71
5.3.220.0080.03512.68
5.3.210.0050.04012.68
5.3.200.0080.03412.68
5.3.190.0070.03612.68
5.3.180.0030.03812.68
5.3.170.0060.03612.66
5.3.160.0100.03212.67
5.3.150.0050.03712.67
5.3.140.0060.03612.66
5.3.130.0060.03912.66
5.3.120.0060.03812.66
5.3.110.0060.03812.66
5.3.100.0080.03612.12
5.3.90.0040.03712.08
5.3.80.0070.03512.07
5.3.70.0050.03612.07
5.3.60.0050.03612.06
5.3.50.0080.03412.00
5.3.40.0040.05112.00
5.3.30.0050.03611.96
5.3.20.0040.03911.73
5.3.10.0040.03911.70
5.3.00.0070.03411.69
5.2.170.0020.0329.19
5.2.160.0030.0349.19
5.2.150.0010.0449.19
5.2.140.0020.0339.18
5.2.130.0050.0289.14
5.2.120.0030.0309.15
5.2.110.0040.0379.15
5.2.100.0050.0329.15
5.2.90.0040.0309.15
5.2.80.0030.0339.15
5.2.70.0040.0319.14
5.2.60.0050.0309.10
5.2.50.0010.0339.07
5.2.40.0070.0259.06
5.2.30.0040.0299.03
5.2.20.0040.0299.02
5.2.10.0050.0308.93
5.2.00.0030.0328.79
5.1.60.0030.0248.07
5.1.50.0050.0238.07
5.1.40.0040.0238.05
5.1.30.0010.0288.41
5.1.20.0040.0278.43
5.1.10.0050.0258.14
5.1.00.0040.0278.15
5.0.50.0050.0196.63
5.0.40.0090.0146.48
5.0.30.0020.0316.30
5.0.20.0020.0206.27
5.0.10.0030.0206.25
5.0.00.0020.0316.24
4.4.90.0030.0144.78
4.4.80.0030.0144.76
4.4.70.0020.0164.76
4.4.60.0040.0134.76
4.4.50.0040.0134.77
4.4.40.0030.0244.71
4.4.30.0000.0184.76
4.4.20.0010.0194.84
4.4.10.0030.0154.85
4.4.00.0030.0254.76
4.3.110.0010.0174.66
4.3.100.0030.0154.66
4.3.90.0030.0134.64
4.3.80.0030.0234.58
4.3.70.0030.0134.63
4.3.60.0040.0124.63
4.3.50.0020.0154.63
4.3.40.0030.0234.54
4.3.30.0010.0173.29
4.3.20.0000.0173.27
4.3.10.0020.0153.23
4.3.00.0030.01715.98

preferences:
38.63 ms | 401 KiB | 5 Q