3v4l.org

run code in 300+ PHP versions simultaneously
<?php $username_pattern = '/^(?!\d*$)[a-z0-9]{8,20}$/'; $userNames = [ "1a3b5678", "1a3b5678abcd", "12345678", "1a3b5678abcddddddddddddddddddddddddddddddd", "1a3B5678", "a1" ]; foreach ($userNames as $userName) { if (preg_match($username_pattern, $userName)) { echo "Match - $userName" . PHP_EOL; } else { echo "No match - $userName" . PHP_EOL; } }

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)
8.3.40.0170.00318.92
8.3.30.0070.00719.02
8.3.20.0000.00724.18
8.3.10.0060.00324.66
8.3.00.0040.00426.16
8.2.170.0170.00319.08
8.2.160.0000.01422.96
8.2.150.0040.00425.66
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0040.00421.05
8.2.110.0110.01121.06
8.2.100.0090.00317.91
8.2.90.0000.00919.05
8.2.80.0040.00417.97
8.2.70.0040.00417.75
8.2.60.0040.00717.80
8.2.50.0040.00418.07
8.2.40.0030.00620.01
8.2.30.0040.00418.17
8.2.20.0040.00417.98
8.2.10.0040.00419.20
8.2.00.0070.00019.29
8.1.270.0060.00323.99
8.1.260.0060.00326.35
8.1.250.0080.00028.09
8.1.240.0090.00020.89
8.1.230.0040.00717.77
8.1.220.0000.00817.79
8.1.210.0090.00018.77
8.1.200.0060.00317.48
8.1.190.0000.00817.22
8.1.180.0040.00418.10
8.1.170.0000.00918.62
8.1.160.0000.00718.91
8.1.150.0040.00418.90
8.1.140.0030.00418.91
8.1.130.0000.00820.34
8.1.120.0050.00317.64
8.1.110.0030.00617.50
8.1.100.0040.00417.50
8.1.90.0040.00417.58
8.1.80.0040.00417.64
8.1.70.0030.00317.61
8.1.60.0000.00717.63
8.1.50.0030.00617.73
8.1.40.0030.00617.66
8.1.30.0000.00817.79
8.1.20.0000.00917.80
8.1.10.0090.00017.60
8.1.00.0000.00717.63
8.0.300.0040.00418.77
8.0.290.0000.00716.75
8.0.280.0070.00018.39
8.0.270.0040.00418.03
8.0.260.0060.00018.51
8.0.250.0050.00317.13
8.0.240.0000.00717.05
8.0.230.0070.00017.12
8.0.220.0030.00617.08
8.0.210.0030.00316.91
8.0.200.0070.00016.97
8.0.190.0040.00416.95
8.0.180.0000.00817.06
8.0.170.0040.00417.08
8.0.160.0000.00816.93
8.0.150.0070.00016.98
8.0.140.0080.00316.95
8.0.130.0030.00313.55
8.0.120.0000.00816.91
8.0.110.0000.00817.01
8.0.100.0050.00217.04
8.0.90.0070.00016.95
8.0.80.0100.00016.86
8.0.70.0030.00617.04
8.0.60.0100.00016.86
8.0.50.0000.01016.98
8.0.30.0070.00217.09
8.0.20.0070.00317.04
8.0.10.0000.01017.21
8.0.00.0070.00217.16
7.4.330.0050.00015.55
7.4.320.0060.00016.59
7.4.300.0000.00716.72
7.4.290.0070.00016.79
7.4.280.0000.00716.80
7.4.270.0040.00416.62
7.4.260.0030.00313.39
7.4.250.0000.00716.68
7.4.240.0000.00716.71
7.4.230.0070.00016.81
7.4.220.0020.00516.84
7.4.210.0050.00516.87
7.4.200.0030.00616.84
7.4.190.0060.00316.59
7.4.180.0000.01016.79
7.4.160.0050.00416.71
7.4.150.0040.00716.79
7.4.140.0030.00716.71
7.4.130.0080.00316.56
7.4.120.0050.00616.48
7.4.110.0050.00616.64
7.4.100.0030.00716.60
7.4.90.0050.00516.60
7.4.80.0070.00316.64
7.4.70.0080.00316.72
7.4.60.0050.00516.84
7.4.50.0110.00016.71
7.4.40.0060.00516.66
7.4.30.0030.00816.49
7.4.20.0030.00616.59
7.4.10.0000.00816.39
7.4.00.0050.00516.59
7.3.330.0030.00316.38
7.3.320.0030.00313.38
7.3.310.0030.00316.54
7.3.300.0000.00716.39
7.3.290.0030.00616.50
7.3.280.0090.00016.50
7.3.270.0040.00616.38
7.3.260.0000.00916.34
7.3.250.0060.00316.51
7.3.240.0000.01016.40
7.3.230.0100.00016.47
7.3.220.0000.00916.38
7.3.210.0070.00216.41
7.3.200.0060.00316.41
7.3.190.0100.00016.35
7.3.180.0070.00316.38
7.3.170.0000.00916.30
7.3.160.0050.00516.34
7.3.150.0000.01016.28
7.3.140.0030.00716.30
7.3.130.0060.00316.27
7.3.120.0030.00616.44
7.3.110.0050.00516.40
7.3.100.0060.00316.19
7.3.90.0050.00516.73
7.3.80.0080.00016.48
7.3.70.0030.00616.37
7.3.60.0050.00416.54
7.3.50.0060.00316.54
7.3.40.0000.00916.52
7.3.30.0030.00616.37
7.3.20.0060.00318.30
7.3.10.0030.00618.30
7.3.00.0000.00918.27

preferences:
59.46 ms | 400 KiB | 5 Q