3v4l.org

run code in 500+ PHP versions simultaneously
<?php echo "\n** warning about bad pattern AND bad parameter: **\n"; var_dump(preg_match('bad pattern', null)); echo "\n** warning about bad pattern only: **\n"; var_dump(preg_match('bad pattern', '')); echo "\n** suppressed warnings: **\n"; var_dump(@preg_match('bad pattern', ''));

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)
8.5.30.0080.00919.58
8.5.20.0140.00418.02
8.5.10.0130.00916.48
8.5.00.0130.01119.80
8.4.180.0130.01019.61
8.4.170.0100.01020.32
8.4.160.0160.00423.88
8.4.150.0070.00416.88
8.4.140.0130.00917.71
8.4.130.0110.00918.19
8.4.120.0130.00822.27
8.4.110.0120.00418.46
8.4.100.0120.00917.71
8.4.90.0130.00720.41
8.4.80.0110.00919.16
8.4.70.0050.01118.79
8.4.60.0070.01320.55
8.4.50.0150.00619.51
8.4.40.0070.01317.78
8.4.30.0030.01518.85
8.4.20.0120.00917.87
8.4.10.0090.00019.48
8.3.300.0140.00620.78
8.3.290.0140.00720.69
8.3.280.0120.00918.46
8.3.270.0110.01016.70
8.3.260.0120.00816.61
8.3.250.0040.00418.93
8.3.240.0120.00716.82
8.3.230.0160.00316.72
8.3.220.0060.00220.88
8.3.210.0100.00916.76
8.3.200.0070.00216.52
8.3.190.0110.00817.16
8.3.180.0050.00516.95
8.3.170.0060.00916.64
8.3.160.0110.00818.73
8.3.150.0140.00417.19
8.3.140.0080.00020.62
8.3.130.0040.00418.54
8.3.120.0100.00018.91
8.3.110.0000.00920.94
8.3.100.0000.01124.06
8.3.90.0060.00326.77
8.3.80.0060.00319.36
8.3.70.0110.00418.68
8.3.60.0000.02216.48
8.3.50.0180.00416.75
8.3.40.0130.00720.21
8.3.30.0100.00321.89
8.3.20.0040.00424.18
8.3.10.0070.00024.66
8.3.00.0040.01528.09
8.2.300.0130.00622.07
8.2.290.0160.00417.18
8.2.280.0120.00618.63
8.2.270.0110.00716.84
8.2.260.0150.00316.57
8.2.250.0030.00516.58
8.2.240.0000.00916.79
8.2.230.0090.00022.58
8.2.220.0070.00037.54
8.2.210.0040.00426.77
8.2.200.0110.00018.88
8.2.190.0150.00616.63
8.2.180.0180.00316.75
8.2.170.0120.00322.96
8.2.160.0080.00822.96
8.2.150.0080.00025.66
8.2.140.0050.00324.66
8.2.130.0090.00928.09
8.2.120.0060.01328.09
8.2.110.0100.01028.09
8.2.100.0080.01128.09
8.2.90.0090.00928.09
8.2.80.0110.01128.09
8.2.70.0180.00328.09
8.2.60.0170.00328.09
8.2.50.0080.00828.09
8.2.40.0090.00928.09
8.2.30.0030.00628.09
8.2.20.0040.00428.09
8.2.10.0040.00428.09
8.2.00.0150.00428.09
8.1.340.0110.00817.56
8.1.330.0090.01016.01
8.1.320.0090.00823.74
8.1.310.0060.00917.88
8.1.300.0040.00418.14
8.1.290.0050.00530.84
8.1.280.0130.00725.92
8.1.270.0030.00520.28
8.1.260.0070.01028.09
8.1.250.0040.00428.09
8.1.240.0000.00828.09
8.1.230.0090.00928.09
8.1.220.0030.01528.09
8.1.210.0070.01028.09
8.1.200.0110.00728.09
8.1.190.0130.00328.09
8.1.180.0140.00728.09
8.1.170.0090.00628.09
8.1.160.0040.01128.09
8.1.150.0030.00728.09
8.1.140.0030.00628.09
8.1.130.0060.00328.09
8.1.120.0030.00528.09
8.1.110.0060.00328.09
8.1.100.0120.00628.09
8.1.90.0070.01128.09
8.1.80.0060.00328.09
8.1.70.0080.00328.09
8.1.60.0050.00528.09
8.1.50.0060.00328.09
8.1.40.0090.00028.09
8.1.30.0090.00628.09
8.1.20.0080.00028.09
8.1.10.0060.00328.09
8.1.00.0040.00428.09

preferences:
78.31 ms | 1029 KiB | 5 Q