3v4l.org

run code in 300+ PHP versions simultaneously
<?php preg_match("/^(aaa)(?:(?<NAME>x)?)/", "aaay", $matches, PREG_UNMATCHED_AS_NULL); var_dump($matches);

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)
8.3.60.0110.00716.38
8.3.50.0100.00716.46
8.3.40.0070.00718.84
8.3.30.0120.00318.85
8.3.20.0080.00021.69
8.3.10.0080.00021.89
8.3.00.0040.00419.67
8.2.180.0070.01118.54
8.2.170.0140.00722.96
8.2.160.0120.00422.30
8.2.150.0080.00024.18
8.2.140.0000.00824.66
8.2.130.0040.00419.39
8.2.120.0040.00426.35
8.2.110.0090.00021.23
8.2.100.0090.00317.78
8.2.90.0060.00317.84
8.2.80.0060.00318.03
8.2.70.0030.00617.55
8.2.60.0030.00517.80
8.2.50.0000.00818.10
8.2.40.0040.00420.52
8.2.30.0050.00319.39
8.2.20.0040.00417.93
8.2.10.0000.00817.93
8.2.00.0000.00717.88
8.1.280.0040.01125.92
8.1.270.0070.00022.02
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0070.00522.05
8.1.230.0040.00820.94
8.1.220.0000.00817.74
8.1.210.0000.00918.91
8.1.200.0090.00017.13
8.1.190.0040.00417.35
8.1.180.0040.00418.10
8.1.170.0000.00918.64
8.1.160.0040.00418.69
8.1.150.0030.00318.89
8.1.140.0080.00017.50
8.1.130.0000.00818.93
8.1.120.0000.00717.50
8.1.110.0050.00217.38
8.1.100.0000.00717.48
8.1.90.0080.00017.50
8.1.80.0000.00817.47
8.1.70.0070.00017.50
8.1.60.0030.00617.49
8.1.50.0050.00317.55
8.1.40.0000.00817.47
8.1.30.0080.00017.66
8.1.20.0000.00817.57
8.1.10.0070.00417.61
8.1.00.0030.00517.46
8.0.300.0040.00419.73
8.0.290.0080.00016.63
8.0.280.0040.00418.27
8.0.270.0070.00017.13
8.0.260.0000.00817.19
8.0.250.0000.00716.97
8.0.240.0030.00616.84
8.0.230.0050.00316.95
8.0.220.0000.00716.91
8.0.210.0030.00316.87
8.0.200.0030.00316.98
8.0.190.0040.00416.87
8.0.180.0000.00716.95
8.0.170.0050.00516.88
8.0.160.0000.00716.89
8.0.150.0040.00416.80
8.0.140.0040.00416.88
8.0.130.0050.00013.33
8.0.120.0000.00816.80
8.0.110.0020.00516.95
8.0.100.0040.00416.75
8.0.90.0040.00416.80
8.0.80.0060.00916.80
8.0.70.0040.00416.90
8.0.60.0070.00016.79
8.0.50.0040.00416.68
8.0.30.0100.00816.96
8.0.20.0070.01217.40
8.0.10.0040.00417.10
8.0.00.0140.00316.88
7.4.330.0000.00515.55
7.4.320.0030.00316.63
7.4.300.0000.00616.69
7.4.290.0000.00716.59
7.4.280.0080.00016.75
7.4.270.0000.00916.56
7.4.260.0040.00416.69
7.4.250.0040.00316.61
7.4.240.0030.00616.61
7.4.230.0000.00716.47
7.4.220.0000.00716.52
7.4.210.0060.00916.60
7.4.200.0070.00016.54
7.4.160.0120.00816.47
7.4.140.0070.01317.86
7.4.130.0120.00616.66
7.4.120.0090.01016.53
7.4.110.0090.00916.57
7.4.100.0110.00816.40
7.4.90.0030.01316.54
7.4.80.0190.00419.39
7.4.70.0090.01516.57
7.4.60.0080.00816.49
7.4.50.0090.00916.60
7.4.40.0140.00316.44
7.4.00.0040.01114.90
7.3.330.0050.00013.13
7.3.320.0000.00513.18
7.3.310.0000.00716.25
7.3.300.0040.00416.30
7.3.290.0070.00016.30
7.3.280.0060.00816.36
7.3.260.0110.00716.42
7.3.240.0090.00916.37
7.3.230.0070.01016.41
7.3.210.0090.01016.33
7.3.200.0030.01316.36
7.3.190.0090.00616.55
7.3.180.0040.01216.63
7.3.170.0080.01216.73
7.3.160.0060.00916.51
7.2.330.0110.00716.49
7.2.320.0160.00416.58
7.2.310.0140.00316.66
7.2.300.0150.00916.62
7.2.290.0090.00616.43
7.2.60.0120.00317.04
7.2.50.0030.01317.01
7.2.40.0090.01119.80
7.2.30.0070.01519.76
7.2.20.0080.01819.92
7.2.10.0070.01719.70
7.2.00.0300.01217.85
7.1.200.0000.01215.82
7.1.160.0070.01618.64
7.1.150.0070.01318.66
7.1.140.0110.01118.29
7.1.130.0170.00618.70
7.1.120.0090.01118.54
7.1.110.0200.01016.00
7.1.100.0160.00916.02
7.1.90.0040.01417.84
7.1.80.0110.01118.24
7.1.70.0050.01316.93
7.1.60.0310.01034.67
7.1.50.0290.01034.60
7.1.40.0350.01434.04
7.1.30.0260.02134.39
7.1.20.0280.01334.48
7.1.10.0060.01516.38
7.1.00.0090.00716.50

preferences:
49 ms | 400 KiB | 5 Q