3v4l.org

run code in 500+ PHP versions simultaneously
<?php $str = "1111 2222 3333 4444 5555 6666"; if (preg_match_all('~(?:\G(?!^)\s?|\A(?=(?:\d{4}\s?)+\z))(\d{4})~', $str, $m)) { print_r($m[1]); }

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)
8.5.90.0060.00716.97
8.5.80.0130.00416.82
8.5.70.0130.00416.89
8.5.60.0080.01017.04
8.5.50.0060.00816.54
8.5.30.0100.00917.55
8.5.20.0100.00919.57
8.5.10.0130.00516.99
8.5.00.0140.00920.12
8.4.240.0080.01119.73
8.4.230.0050.00419.61
8.4.220.0130.01119.84
8.4.210.0090.00121.47
8.4.180.0160.00719.95
8.4.170.0120.00923.88
8.4.160.0110.01223.82
8.4.150.0080.00416.93
8.4.140.0130.00917.58
8.4.130.0090.00917.89
8.4.120.0130.00722.34
8.4.110.0070.01218.82
8.4.100.0100.01017.81
8.4.90.0120.00922.52
8.4.80.0060.00217.97
8.4.70.0110.00817.93
8.4.60.0100.00719.09
8.4.50.0100.01018.64
8.4.40.0140.00717.78
8.4.30.0140.00620.36
8.4.20.0070.01317.95
8.4.10.0030.00619.71
8.3.330.0130.00718.68
8.3.320.0130.00718.65
8.3.310.0130.00818.71
8.3.300.0080.01218.75
8.3.290.0100.01020.84
8.3.280.0090.01118.54
8.3.270.0140.00716.86
8.3.260.0110.00816.63
8.3.250.0090.01118.82
8.3.240.0100.00216.64
8.3.230.0130.00616.62
8.3.220.0030.00518.84
8.3.210.0050.00318.34
8.3.200.0050.00416.56
8.3.190.0100.00917.01
8.3.180.0040.00418.47
8.3.170.0150.00317.18
8.3.160.0070.01118.44
8.3.150.0110.00718.40
8.3.140.0110.00016.99
8.3.130.0030.00716.23
8.3.120.0040.00418.75
8.3.110.0000.00920.94
8.3.100.0040.00424.06
8.3.90.0160.00326.77
8.3.80.0090.00016.63
8.3.70.0090.00918.68
8.3.60.0180.00018.43
8.3.50.0120.00317.96
8.3.40.0090.00621.89
8.3.30.0060.00918.84
8.3.20.0080.00024.18
8.3.10.0070.00024.66
8.3.00.0000.00826.16
8.2.320.0130.00618.27
8.2.310.0110.00918.20
8.2.300.0040.00522.13
8.2.290.0050.00420.72
8.2.280.0110.00818.54
8.2.270.0080.00017.03
8.2.260.0000.00716.52
8.2.250.0120.00316.63
8.2.240.0030.00519.25
8.2.230.0070.00022.58
8.2.220.0040.00437.54
8.2.210.0070.01126.77
8.2.200.0040.00716.88
8.2.190.0070.01416.75
8.2.180.0120.00325.92
8.2.170.0090.00619.14
8.2.160.0070.00722.96
8.2.150.0040.00425.66
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0060.00326.16
8.2.110.0060.00319.33
8.2.100.0100.00317.84
8.2.90.0030.00619.20
8.2.80.0000.00818.04
8.2.70.0040.00417.75
8.2.60.0040.00418.04
8.2.50.0040.00418.07
8.2.40.0050.00319.88
8.2.30.0040.00418.04
8.2.20.0040.00418.08
8.2.10.0000.00819.27
8.2.00.0040.00419.20
8.1.340.0070.00417.78
8.1.330.0070.00822.21
8.1.320.0110.00816.60
8.1.310.0040.00418.60
8.1.300.0040.00418.70
8.1.290.0040.00418.88
8.1.280.0070.00725.92
8.1.270.0080.00023.99
8.1.260.0040.00426.35
8.1.250.0040.01428.09
8.1.240.0000.01023.72
8.1.230.0040.00717.82
8.1.220.0030.00517.74
8.1.210.0040.00418.77
8.1.200.0030.00617.35
8.1.190.0080.00017.35
8.1.180.0000.00818.74
8.1.170.0040.00419.03
8.1.160.0050.00218.86
8.1.150.0040.00418.64
8.1.140.0000.00820.83
8.1.130.0000.00718.85
8.1.120.0040.00417.53
8.1.110.0040.00417.54
8.1.100.0100.00017.60
8.1.90.0040.00417.43
8.1.80.0040.00417.56
8.1.70.0030.00317.59
8.1.60.0000.00817.70
8.1.50.0030.00617.51
8.1.40.0000.00817.50
8.1.30.0050.00317.75
8.1.20.0000.00817.63
8.1.10.0000.00817.74
8.1.00.0060.00317.66
8.0.300.0070.00018.77
8.0.290.0050.00316.63
8.0.280.0030.00318.32
8.0.270.0000.00718.09
8.0.260.0030.00318.64
8.0.250.0070.00017.07
8.0.240.0000.00717.01
8.0.230.0040.00417.03
8.0.220.0040.00416.89
8.0.210.0030.00517.04
8.0.200.0070.00017.08
8.0.190.0030.00516.94
8.0.180.0020.00516.98
8.0.170.0040.00416.91
8.0.160.0070.00016.96
8.0.150.0040.00416.82
8.0.140.0050.00316.98
8.0.130.0000.00513.33
8.0.120.0040.00416.95
8.0.110.0080.00016.85
8.0.100.0000.00716.98
8.0.90.0040.00416.97
8.0.80.0040.00416.86
8.0.70.0070.00017.03
8.0.60.0070.00017.01
8.0.50.0070.00016.92
8.0.30.0030.00317.08
8.0.20.0000.00716.94
8.0.10.0000.00717.00
8.0.00.0000.00716.96
7.4.330.0030.00315.55
7.4.320.0030.00316.66
7.4.300.0000.00616.63
7.4.290.0000.00716.50
7.4.280.0090.00016.73
7.4.270.0000.00816.68
7.4.260.0050.00013.41
7.4.250.0000.00816.74
7.4.240.0000.00716.64
7.4.230.0000.00716.50
7.4.220.0030.00316.78
7.4.210.0080.00016.55
7.4.200.0070.00016.74
7.4.190.0000.00716.52
7.4.180.0000.00716.62
7.4.160.0080.00016.91
7.4.150.0070.00016.71
7.4.140.0000.00816.57
7.4.130.0030.00316.77
7.4.120.0070.00016.50
7.4.110.0030.00316.41
7.4.100.0000.00716.62
7.4.90.0070.00016.55
7.4.80.0000.00816.42
7.4.70.0020.00516.45
7.4.60.0080.00016.47
7.4.50.0040.00416.52
7.4.40.0040.00416.62
7.4.30.0040.00416.69
7.4.20.0000.00716.66
7.4.10.0070.00016.45
7.4.00.0030.00316.63
7.3.330.0000.00716.39
7.3.320.0030.00313.15
7.3.310.0070.00016.31
7.3.300.0000.00616.18
7.3.290.0000.00616.40
7.3.280.0000.00716.41
7.3.270.0060.00016.30
7.3.260.0000.00816.21
7.3.250.0030.00516.33
7.3.240.0030.00316.32
7.3.230.0070.00016.35
7.3.220.0070.00016.27
7.3.210.0030.00316.27
7.3.200.0030.00516.27
7.3.190.0040.00416.20
7.3.180.0040.00416.29
7.3.170.0040.00416.29
7.3.160.0000.00716.13
7.3.150.0000.00716.20
7.3.140.0030.00316.28
7.3.130.0030.00316.27
7.3.120.0070.00016.34
7.3.110.0070.00016.08
7.3.100.0030.00316.18
7.3.90.0070.00016.62
7.3.80.0000.00716.34
7.3.70.0070.00016.32
7.3.60.0040.00416.37
7.3.50.0040.00416.48
7.3.40.0000.00716.42
7.3.30.0000.00716.50
7.3.20.0040.00416.38
7.3.10.0070.00016.30
7.3.00.0000.00716.24

preferences:
52.59 ms | 1447 KiB | 5 Q