3v4l.org

run code in 300+ PHP versions simultaneously
<?php $tests = [ ['word' => 'example', 'mask' => 'lmp'], // true ['word' => 'goodness', 'mask' => 'dns'], // false ['word' => 'slippers', 'mask' => 'eip'], // true ['word' => 'slippers', 'mask' => 'ips'], // false ['word' => 'google', 'mask' => 'go'], // true ['word' => 'food', 'mask' => 'go'], // false ['word' => 'bananas', 'mask' => 'ans'], // true ['word' => 'candle', 'mask' => 'ace'], // false ['word' => 'mississippi', 'mask' => 'i'], // true ['word' => 'executive', 'mask' => 'ecitx'], // false ]; foreach ($tests as ['word' => $word, 'mask' => $mask]) { var_export([ $word, $mask, preg_match_all("/[$mask]+/", $word, $m) && array_filter($m[0], fn($chars) => !ltrim($mask, $chars)), preg_match_all("/[$mask]{" . strlen($mask) . ",}/", $word, $m) && array_filter($m[0], fn($chars) => !ltrim($mask, $chars)), // preg_replace('/[a-z]/', "(?=[$mask]*$0)", $mask), (bool) preg_match('/' . preg_replace('/[a-z]/', "(?=[$mask]*$0)", $mask) . "[$mask]+/", $word) ]); echo "\n---\n"; }

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)
8.5.10.0130.00520.20
8.5.00.0060.00423.14
8.4.150.0020.00014.05
8.4.140.0160.00617.88
8.4.130.0090.01117.97
8.4.120.0100.01020.54
8.4.110.0100.01222.44
8.4.100.0170.00517.95
8.4.90.0120.00818.98
8.4.80.0120.00918.15
8.4.70.0130.00818.13
8.4.60.0100.01318.62
8.4.50.0130.00819.89
8.4.40.0120.00820.09
8.4.30.0030.00620.68
8.4.20.0070.01417.90
8.4.10.0100.01023.82
8.3.280.0120.00918.69
8.3.270.0140.00617.04
8.3.260.0070.00916.79
8.3.250.0100.00919.10
8.3.240.0070.00916.88
8.3.230.0140.00716.98
8.3.220.0040.00317.55
8.3.210.0130.00816.87
8.3.200.0090.01216.65
8.3.190.0030.00517.36
8.3.180.0120.00716.68
8.3.170.0130.00617.21
8.3.160.0070.00717.29
8.3.150.0100.01017.54
8.3.140.0090.00318.89
8.3.130.0040.00418.68
8.3.120.0060.00320.79
8.3.110.0070.00320.94
8.3.100.0080.00324.06
8.3.90.0130.00626.77
8.3.80.0030.00718.81
8.3.70.0110.00716.88
8.3.60.0130.01018.78
8.3.50.0090.01220.41
8.3.40.0070.00722.09
8.3.30.0100.00619.10
8.3.20.0080.00024.18
8.3.10.0080.00024.66
8.3.00.0060.00326.16
8.2.290.0120.00720.54
8.2.280.0090.01218.50
8.2.270.0100.01017.25
8.2.260.0040.00416.62
8.2.250.0040.00418.48
8.2.240.0130.00617.14
8.2.230.0000.00922.58
8.2.220.0100.00037.54
8.2.210.0170.00326.77
8.2.200.0050.00516.75
8.2.190.0110.01116.75
8.2.180.0070.00725.92
8.2.170.0070.01522.96
8.2.160.0070.00722.96
8.2.150.0040.00425.66
8.2.140.0040.00424.66
8.2.130.0100.00326.16
8.2.120.0050.00320.08
8.2.110.0040.00720.95
8.2.100.0060.00918.09
8.2.90.0050.00318.28
8.2.80.0030.00619.19
8.2.70.0030.00618.00
8.2.60.0040.00418.05
8.2.50.0080.00418.07
8.2.40.0060.00318.46
8.2.30.0030.00518.26
8.2.20.0060.00320.44
8.2.10.0050.00318.27
8.2.00.0070.00419.33
8.1.330.0030.00522.03
8.1.320.0110.01016.29
8.1.310.0090.00916.23
8.1.300.0030.00718.36
8.1.290.0100.00030.84
8.1.280.0060.00925.92
8.1.270.0060.00324.09
8.1.260.0030.00626.35
8.1.250.0140.00728.09
8.1.240.0060.00322.80
8.1.230.0000.01221.13
8.1.220.0000.01017.89
8.1.210.0040.00419.16
8.1.200.0000.00917.73
8.1.190.0070.00317.60
8.1.180.0000.00818.10
8.1.170.0000.00918.58
8.1.160.0030.00519.03
8.1.150.0000.00818.90
8.1.140.0030.00517.84
8.1.130.0040.00417.64
8.1.120.0000.00717.66
8.1.110.0030.00517.66
8.1.100.0040.00417.71
8.1.90.0040.00417.56
8.1.80.0050.00717.59
8.1.70.0050.01017.69
8.1.60.0190.00017.77
8.1.50.0110.00817.70
8.1.40.0140.00617.78
8.1.30.0140.00417.63
8.1.20.0150.00417.84
8.1.10.0160.00317.74
8.1.00.0210.00017.65
8.0.300.0000.00820.03
8.0.290.0040.00417.00
8.0.280.0050.00318.52
8.0.270.0040.00418.28
8.0.260.0040.00416.98
8.0.250.0040.00417.05
8.0.240.0000.00817.04
8.0.230.0120.00017.20
8.0.220.0040.00417.00
8.0.210.0070.00717.16
8.0.200.0120.00417.00
8.0.190.0060.01017.10
8.0.180.0080.00817.09
8.0.170.0150.00017.14
8.0.160.0120.00417.19
8.0.150.0040.01217.03
8.0.140.0100.00617.07
8.0.130.0090.00616.91
8.0.120.0110.00417.18
8.0.110.0050.01117.13
8.0.100.0160.00017.07
8.0.90.0070.00717.17
8.0.80.0110.00417.07
8.0.70.0080.00817.17
8.0.60.0090.00617.05
8.0.50.0110.00717.02
8.0.30.0110.00416.98
8.0.20.0100.00417.04
8.0.10.0110.00317.18
7.4.330.0000.00515.55
7.4.320.0050.00216.82
7.4.300.0050.00516.91
7.4.290.0090.00616.94
7.4.280.0100.00616.83
7.4.270.0110.00316.89
7.4.260.0080.00816.89
7.4.250.0060.01216.97
7.4.240.0170.00016.82
7.4.230.0100.00716.98
7.4.220.0110.00416.93
7.4.210.0140.00016.94
7.4.200.0100.00516.74
7.4.190.0100.00316.72
7.4.180.0100.00516.71
7.4.160.0120.00316.82
7.4.150.0100.00516.74
7.4.140.0050.01016.79
7.4.130.0110.00416.78
7.4.120.0120.00316.90
7.4.110.0070.00716.79
7.4.100.0080.00816.90
7.4.90.0070.00716.69
7.4.80.0110.00416.70
7.4.70.0040.01116.78
7.4.60.0100.00516.80
7.4.50.0050.01116.70
7.4.40.0050.01016.63
7.4.30.0070.00716.77
7.4.20.0070.00716.68
7.4.10.0050.00916.74
7.4.00.0100.00316.78

preferences:
35.34 ms | 403 KiB | 5 Q