3v4l.org

run code in 300+ PHP versions simultaneously
<?php $regex = ' (?<types> (?: (?:\{ (?&types) \}) | (a) ) (\*?) ) '; $captureOffsets = false; ini_set('pcre.jit', '0'); $res = preg_match('{^' . $regex . '$}x', '{a}', $matches, $captureOffsets ? PREG_OFFSET_CAPTURE : 0); ini_set('pcre.jit', '1'); // regex must be different to prevent regex cache, so just add 2nd "x" modifier $res2 = preg_match('{^' . $regex . '$}xx', '{a}', $matches2, $captureOffsets ? PREG_OFFSET_CAPTURE : 0); if ($matches !== $matches2) { echo 'without JIT:' . "\n"; print_r($matches); echo "\n"; echo 'with JIT:' . "\n"; print_r($matches2); }

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)
8.5.10.0110.00919.57
8.5.00.0100.01022.99
8.4.160.0100.01223.93
8.4.150.0040.00316.95
8.4.140.0140.00717.93
8.4.130.0160.00517.84
8.4.120.0090.01024.21
8.4.110.0140.00918.80
8.4.100.0120.00818.96
8.4.90.0110.01022.39
8.4.80.0110.01018.95
8.4.70.0090.01020.57
8.4.60.0130.00720.68
8.4.50.0100.00918.53
8.4.40.0060.00319.80
8.4.30.0170.00318.84
8.4.20.0070.01119.90
8.4.10.0030.00624.09
8.3.280.0070.00516.41
8.3.270.0110.01016.82
8.3.260.0100.00816.95
8.3.250.0110.00816.63
8.3.240.0120.00717.00
8.3.230.0120.00716.88
8.3.220.0110.00719.16
8.3.210.0060.00918.62
8.3.200.0040.00416.80
8.3.190.0110.01017.20
8.3.180.0110.00819.02
8.3.170.0190.00017.27
8.3.160.0090.00918.75
8.3.150.0120.00016.95
8.3.140.0030.00616.97
8.3.130.0080.00017.10
8.3.120.0080.00018.87
8.3.110.0090.00020.94
8.3.100.0060.00324.06
8.3.90.0050.00326.77
8.3.80.0000.01018.68
8.3.70.0180.00418.43
8.3.60.0120.00318.68
8.3.50.0090.00616.99
8.3.40.0070.00722.09
8.3.30.0150.00019.04
8.3.20.0040.00424.18
8.3.10.0040.00424.66
8.3.00.0090.00026.16
8.2.290.0130.00620.15
8.2.280.0040.00418.55
8.2.270.0120.00618.58
8.2.260.0040.00417.25
8.2.250.0050.00317.02
8.2.240.0140.00017.26
8.2.230.0090.00022.58
8.2.220.0000.01037.54
8.2.210.0030.00626.77
8.2.200.0040.00416.38
8.2.190.0000.01616.63
8.2.180.0120.00318.41
8.2.170.0070.00719.00
8.2.160.0100.00322.96
8.2.150.0040.00425.66
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0000.00819.61
8.2.110.0070.00320.56
8.2.100.0040.00818.03
8.2.90.0040.00418.09
8.2.80.0050.00317.97
8.2.70.0080.00017.75
8.2.60.0120.00317.50
8.2.50.0130.00617.25
8.2.40.0130.00417.61
8.2.30.0080.00817.80
8.2.20.0130.00417.62
8.2.10.0110.00617.69
8.2.00.0080.00817.75
8.1.330.0090.01021.79
8.1.320.0130.00616.44
8.1.310.0030.00517.01
8.1.300.0100.00616.64
8.1.290.0000.00918.88
8.1.280.0070.01525.92
8.1.270.0050.00324.66
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0030.00622.46
8.1.230.0080.00422.80
8.1.220.0040.00417.74
8.1.210.0040.00418.84
8.1.200.0030.00617.35
8.1.190.0140.00417.19
8.1.180.0100.00617.13
8.1.170.0100.00617.36
8.1.160.0120.00417.29
8.1.150.0100.00617.19
8.1.140.0090.00717.25
8.1.130.0140.00417.38
8.1.120.0160.00317.38
8.1.110.0090.00817.44
8.1.100.0120.00517.13
8.1.90.0150.00117.44
8.1.80.0130.00317.38
8.1.70.0130.00417.30
8.1.60.0130.00517.49
8.1.50.0100.00717.24
8.1.40.0140.00517.55
8.1.30.0130.00617.42
8.1.20.0120.00717.44
8.1.10.0110.00717.44
8.1.00.0090.01117.17
8.0.300.0070.00019.89
8.0.290.0000.00816.75
8.0.280.0140.00316.81
8.0.270.0160.00116.68
8.0.260.0110.00616.57
8.0.250.0090.00916.94
8.0.240.0120.00516.69
8.0.230.0140.00316.75
8.0.220.0150.00316.69
8.0.210.0140.00316.63
8.0.200.0130.00416.81
8.0.190.0100.00616.76
8.0.180.0080.01016.73
8.0.170.0110.00716.63
8.0.160.0090.00916.80
8.0.150.0130.00416.87
8.0.140.0100.00616.75
8.0.130.0170.00016.75
8.0.120.0110.00616.74
8.0.110.0120.00416.81
8.0.100.0110.00516.68
8.0.90.0150.00216.75
8.0.80.0070.01016.70
8.0.70.0150.00316.74
8.0.60.0100.00616.57
8.0.50.0110.00516.57
8.0.30.0140.00216.63
8.0.20.0110.00516.70
8.0.10.0120.00516.73
8.0.00.0060.00916.88
7.4.330.0130.00016.52
7.4.320.0110.00616.52
7.4.300.0160.00016.75
7.4.290.0130.00416.52
7.4.280.0120.00416.52
7.4.270.0150.00016.63
7.4.260.0120.00316.52
7.4.250.0150.00216.52
7.4.240.0080.00816.52
7.4.230.0100.00716.52
7.4.220.0130.00216.60
7.4.210.0080.00816.52
7.4.200.0090.00616.52
7.4.190.0100.00516.73
7.4.180.0160.00016.52
7.4.160.0100.00516.63
7.4.150.0120.00416.52
7.4.140.0150.00016.52
7.4.130.0040.01216.63
7.4.120.0070.00716.52
7.4.110.0140.00016.52
7.4.100.0120.00416.52
7.4.90.0090.00616.59
7.4.80.0080.00816.52
7.4.70.0070.00716.52
7.4.60.0100.00616.52
7.4.50.0060.00916.52
7.4.40.0120.00416.52
7.4.30.0150.00016.52
7.4.20.0150.00016.52
7.4.10.0150.00016.52
7.4.00.0120.00616.52
7.3.330.0150.00016.52
7.3.320.0050.01016.52
7.3.310.0120.00316.52
7.3.300.0050.01016.52
7.3.290.0120.00316.52
7.3.280.0070.00716.52
7.3.270.0080.00616.52
7.3.260.0080.00816.52
7.3.250.0120.00316.52
7.3.240.0050.01116.52
7.3.230.0130.00316.52
7.3.220.0170.00016.52
7.3.210.0050.01016.52
7.3.200.0090.00716.52
7.3.190.0060.01016.52
7.3.180.0060.00616.52
7.3.170.0180.00016.52
7.3.160.0120.00316.52
7.3.150.0120.00316.52
7.3.140.0090.00616.52
7.3.130.0120.00416.52
7.3.120.0100.00516.52
7.3.110.0130.00316.52
7.3.100.0050.01016.52
7.3.90.0100.00516.52
7.3.80.0140.00016.52
7.3.70.0110.00416.52
7.3.60.0130.00316.52
7.3.50.0100.00516.52
7.3.40.0080.00816.52
7.3.30.0140.00016.52
7.3.20.0110.00518.26
7.3.10.0150.00018.00
7.3.00.0070.00918.06
7.2.340.0110.00516.63
7.2.330.0060.01116.52
7.2.320.0180.00016.52
7.2.310.0120.00616.52
7.2.300.0090.00616.52
7.2.290.0050.01016.52
7.2.280.0120.00216.52
7.2.270.0070.00716.52
7.2.260.0120.00316.52
7.2.250.0130.00216.52
7.2.240.0130.00516.52
7.2.230.0100.00516.52
7.2.220.0000.01516.52
7.2.210.0080.00816.52
7.2.200.0110.00616.63
7.2.190.0070.00716.52
7.2.180.0140.00216.52
7.2.170.0070.00716.52
7.2.160.0100.00516.63
7.2.150.0150.00018.13
7.2.140.0070.00718.37
7.2.130.0110.00418.26
7.2.120.0120.00318.31
7.2.110.0150.00017.98
7.2.100.0120.00418.28
7.2.90.0000.01718.03
7.2.80.0160.00018.16
7.2.70.0120.00418.23
7.2.60.0100.00518.51
7.2.50.0130.00318.16
7.2.40.0080.00818.22
7.2.30.0170.00018.28
7.2.20.0060.00918.13
7.2.10.0050.01018.30
7.2.00.0100.00518.15
7.1.330.0150.00017.43
7.1.320.0070.00717.05
7.1.310.0090.00617.02
7.1.300.0140.00316.92
7.1.290.0080.00517.11
7.1.280.0140.00016.93
7.1.270.0080.00616.90
7.1.260.0090.00617.11
7.1.250.0100.00516.90
7.1.240.0100.00517.23
7.1.230.0100.00517.00
7.1.220.0120.00317.21
7.1.210.0070.00717.08
7.1.200.0140.00016.90
7.1.190.0070.00717.15
7.1.180.0100.00316.68
7.1.170.0130.00016.89
7.1.160.0090.00417.02
7.1.150.0110.00416.97
7.1.140.0140.00216.93
7.1.130.0040.00917.11
7.1.120.0100.00316.97
7.1.110.0140.00017.27
7.1.100.0050.01017.27
7.1.90.0140.00017.27
7.1.80.0080.00817.02
7.1.70.0110.00416.80
7.1.60.0110.00417.39
7.1.50.0150.00017.30
7.1.40.0110.00417.27
7.1.30.0120.00317.49
7.1.20.0080.00817.42
7.1.10.0150.00017.05
7.1.00.0140.00016.92
7.0.330.0070.00716.97
7.0.320.0090.00416.63
7.0.310.0050.01016.82
7.0.300.0050.00916.73
7.0.290.0100.00316.77
7.0.280.0110.00416.89
7.0.270.0050.00816.73
7.0.260.0100.00516.90
7.0.250.0110.00316.97
7.0.240.0170.00017.18
7.0.230.0080.00417.12
7.0.220.0110.00316.99
7.0.210.0060.00616.99
7.0.200.0150.00016.85
7.0.190.0040.00917.00
7.0.180.0130.00016.92
7.0.170.0060.00616.89
7.0.160.0080.00516.86
7.0.150.0110.00316.96
7.0.140.0150.00016.77
7.0.130.0100.00316.88
7.0.120.0120.00417.00
7.0.110.0150.00017.01
7.0.100.0130.00316.68
7.0.90.0150.00016.78
7.0.80.0100.00516.71
7.0.70.0080.00816.80
7.0.60.0130.00017.13
7.0.50.0120.00216.68
7.0.40.0050.00916.65
7.0.30.0030.01016.88
7.0.20.0060.00917.00
7.0.10.0140.00016.66
7.0.00.0090.00617.05
5.6.400.0100.00516.52
5.6.390.0090.00416.52
5.6.380.0070.00716.52
5.6.370.0040.00916.52
5.6.360.0090.00416.52
5.6.350.0140.00016.52
5.6.340.0150.00016.52
5.6.330.0150.00016.52
5.6.320.0090.00516.52
5.6.310.0110.00416.52
5.6.300.0060.00916.52
5.6.290.0130.00016.52
5.6.280.0130.00016.52
5.6.270.0110.00416.52
5.6.260.0050.00816.52
5.6.250.0140.00016.52
5.6.240.0050.00916.52
5.6.230.0120.00416.52
5.6.220.0130.00016.52
5.6.210.0100.00316.52
5.6.200.0060.00616.52
5.6.190.0070.00716.52
5.6.180.0080.00816.52
5.6.170.0090.00416.52
5.6.160.0100.00316.52
5.6.150.0100.00316.52
5.6.140.0040.00916.52
5.6.130.0100.00316.52
5.6.120.0050.00816.52
5.6.110.0090.00416.52
5.6.100.0030.01016.52
5.6.90.0090.00416.52
5.6.80.0030.00916.52
5.6.70.0000.01216.52
5.6.60.0100.00316.52
5.6.50.0110.00316.52
5.6.40.0060.00616.52
5.6.30.0110.00416.52
5.6.20.0060.00616.52
5.6.10.0100.00316.52
5.6.00.0040.00816.52
5.5.380.0100.00316.52
5.5.370.0080.00416.52
5.5.360.0060.00616.52
5.5.350.0060.00616.52
5.5.340.0110.00216.52
5.5.330.0000.01316.52
5.5.320.0080.00516.52
5.5.310.0040.01116.52
5.5.300.0150.00016.52
5.5.290.0080.00516.52
5.5.280.0130.00016.52
5.5.270.0090.00416.52
5.5.260.0110.00316.52
5.5.250.0070.00716.52
5.5.240.0050.00816.52
5.5.230.0080.00416.52
5.5.220.0120.00016.52
5.5.210.0040.00916.52
5.5.200.0130.00016.52
5.5.190.0040.00816.52
5.5.180.0110.00416.52
5.5.170.0000.01316.52
5.5.160.0120.00016.52
5.5.150.0060.00616.52
5.5.140.0100.00316.52
5.5.130.0040.00816.52
5.5.120.0160.00016.52
5.5.110.0080.00416.52
5.5.100.0090.00416.52
5.5.90.0130.00016.52
5.5.80.0100.00316.52
5.5.70.0100.00316.52
5.5.60.0090.00316.52
5.5.50.0090.00316.52
5.5.40.0040.00816.52
5.5.30.0080.00416.52
5.5.20.0030.01016.52
5.5.10.0060.00616.52
5.5.00.0100.00316.52
5.4.450.0110.00016.52
5.4.440.0100.00016.52
5.4.430.0100.00016.52
5.4.420.0100.00016.52
5.4.410.0100.00016.52
5.4.400.0030.00616.52
5.4.390.0100.00016.52
5.4.380.0040.00716.52
5.4.370.0070.00216.52
5.4.360.0070.00316.52
5.4.350.0080.00316.52
5.4.340.0050.00516.52
5.4.330.0110.00016.52
5.4.320.0070.00316.52
5.4.310.0060.00316.52
5.4.300.0000.01016.52
5.4.290.0080.00416.52
5.4.280.0100.00016.52
5.4.270.0100.00016.52
5.4.260.0100.00016.52
5.4.250.0110.00016.52
5.4.240.0110.00016.52
5.4.230.0100.00016.52
5.4.220.0030.00716.52
5.4.210.0100.00016.52
5.4.200.0080.00316.52
5.4.190.0080.00316.52
5.4.180.0070.00416.52
5.4.170.0080.00416.52
5.4.160.0050.00516.52
5.4.150.0050.00516.52
5.4.140.0030.00716.52
5.4.130.0030.00616.52
5.4.120.0040.00716.52
5.4.110.0070.00516.52
5.4.100.0070.00316.52
5.4.90.0100.00016.52
5.4.80.0070.00316.52
5.4.70.0000.01016.52
5.4.60.0100.00016.52
5.4.50.0100.00016.52
5.4.40.0070.00316.52
5.4.30.0050.00516.52
5.4.20.0100.00016.52
5.4.10.0110.00016.52
5.4.00.0040.00716.52
5.3.290.0070.00316.52
5.3.280.0100.00016.52
5.3.270.0050.00516.52
5.3.260.0050.00516.52
5.3.250.0040.00816.52
5.3.240.0110.00016.52
5.3.230.0110.00016.52
5.3.220.0110.00016.52
5.3.210.0100.00016.52
5.3.200.0100.00016.52
5.3.190.0070.00416.52
5.3.180.0060.00616.52
5.3.170.0100.00016.52
5.3.160.0070.00416.52
5.3.150.0040.00716.52
5.3.140.0090.00616.52
5.3.130.0070.00316.52
5.3.120.0040.00716.52
5.3.110.0040.00716.52
5.3.100.0060.00316.52
5.3.90.0100.00016.52
5.3.80.0070.00216.52
5.3.70.0050.00516.52
5.3.60.0050.00516.52
5.3.50.0050.00516.52
5.3.40.0040.00716.52
5.3.30.0100.00016.52
5.3.20.0100.00016.52
5.3.10.0050.00516.52
5.3.00.0060.00316.52
5.2.170.0050.00516.52
5.2.160.0000.00816.52
5.2.150.0060.00316.52
5.2.140.0080.00016.52
5.2.130.0030.00616.52
5.2.120.0040.00416.52
5.2.110.0040.00416.52
5.2.100.0080.00016.52
5.2.90.0080.00016.52
5.2.80.0000.00816.52
5.2.70.0060.00216.52
5.2.60.0000.00916.52
5.2.50.0090.00016.52
5.2.40.0000.00816.52
5.2.30.0060.00316.52
5.2.20.0050.00316.52
5.2.10.0040.00416.52
5.2.00.0080.00016.52
5.1.60.0040.00416.52
5.1.50.0040.00416.52
5.1.40.0070.00016.52
5.1.30.0040.00416.52
5.1.20.0080.00016.52
5.1.10.0040.00416.52
5.1.00.0060.00216.52
5.0.50.0040.00216.52
5.0.40.0040.00416.52
5.0.30.0040.00216.52
5.0.20.0000.00716.52
5.0.10.0000.00616.52
5.0.00.0000.00616.52
4.4.90.0000.00416.52
4.4.80.0030.00016.52
4.4.70.0000.00316.52
4.4.60.0030.00016.52
4.4.50.0000.00316.52
4.4.40.0040.00016.52
4.4.30.0000.00316.52
4.4.20.0040.00016.52
4.4.10.0040.00016.52
4.4.00.0040.00016.52
4.3.110.0040.00016.52
4.3.100.0000.00316.52
4.3.90.0020.00216.52
4.3.80.0040.00016.52
4.3.70.0000.00316.52
4.3.60.0000.00416.52
4.3.50.0000.00416.52
4.3.40.0000.00416.52
4.3.30.0030.00016.52
4.3.20.0000.00316.52
4.3.10.0000.00316.52
4.3.00.0000.00316.52

preferences:
39.64 ms | 403 KiB | 5 Q