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The correct form of regular expression is delimiter{pattern}delimiter, f.e. /^([a-z]*)$/i or @^(?:http://)?([^/]+)@i. Every form compatible with functions checking correctness of regular expressions in PHP are allowed (example).
The reason is obvious. With delimiters you have a chance to add modifiers to the regexp. Otherwise script will automatically add / at the beginning and / at the end of the pattern.
Generally, the user determines what content and at what way he wants to test, but it must have full rights to publish the test content because it will be available for other Internet users. You should also avoid writing obscene phrases, vulgar phrases, or suggest resources incompatible with Polish law. You are fully responsible for the content posted by you on the site. On the reasoned request of a third party individual entries can be removed from the site.
A regular expression is a pattern that describes a set of strings.
There are a lot of examples on the internet. You should especially check this:
Please submit every found bug by typing comment here (polish and english).
Yes. On ID column of every tested expression you can find hiperlink. Copy it and share, that's all.
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ID | Regular expression | Subject | Result | Matches | Link |
---|---|---|---|---|---|
533150 | ^?(a)?(z)$ | z | false | Link | |
533149 | ^?(a)?(z)$ | zz | false | Link | |
533148 | ^[a|z]$ | zz | false | Link | |
533147 | ^[a|z]$ | z | true |
|
Link |
533146 | ^[a|z]$ | zzzs | false | Link | |
533145 | a|z | zzzs | true |
|
Link |
533144 | a|z | zzz | true |
|
Link |
533143 | ^nls.= | <nls languageCode="tr" name="Data przeglądu 48"/> | false | Link | |
533142 | ^nls languageCode=.*/> | <nls languageCode="tr" name="Data przeglądu 48"/> | false | Link | |
533141 | *[A-Z]*[A-Z]* | Kowalki Jan Kowalki Jan i Monika |
false | Link | |
533140 | *[A-Z]*[A-Z]* | Kowalki Jan2 | false | Link | |
533139 | *[A-Z]*[A-Z]* | Kowalki Jan | false | Link | |
533138 | ['"] | ZZ/2025/04/M_MAR/17898: Wsparcie TikTok - 2025.02_trymerbabyliss-x-metals996e_CONVERSION, 24.12.23838-legodzien-kobiet_SALE , 2025.02_parownica-doubran-steamer-tefaldt9814f0- aerosteam_CONVERSIO Nasd |
false | Link | |
533137 | ^[^\x00-\x1F'"]*$ |
ZZ/2025/04/M_MAR/17899: Wsparcie TikTok - 202''''.02_Eksperci_marz ec1_VIDEOVIEWS , 2025.01.2'4031_kreaty wne-ferie_SALE ,''''' |
false | Link | |
533136 | /^(PL)([0-9]{10})$/i | 32432423423 | false | Link | |
533135 | /^(PL)([0-9]{10})$/i | dwdw | false | Link | |
533134 | (t\.[a-z]+)\s+IS NOT DISTINCT FROM\s+(s\.[a-z]+) | AND t.no_of_channels IS NOT DISTINCT FROM s.no_of_channels | false | Link | |
533133 | #[0-9] | #4 | true |
|
Link |
533132 | #[0-9] | #3 | true |
|
Link |
533131 | *#[0-9]* | #3 | true |
|
Link |
533130 | *#[0-9]* | #35 | true |
|
Link |
533129 | ^(.*)\s\[Nr:\s*(\d+)\]:\s*(.*),\s*(odbiór osobisty|wraca do klienta|wraca na stan)? | Falownik LF Integrity C Bieżnia: błąd E20, wraca do klienta |
false | Link | |
533128 | ^https:\\/\\/.+-system\\.erecruiter\\.dev-ers\\.pracuj\\.local$ | https://master-system.erecruiter.dev-ers.pracuj.local/ | false | Link | |
533127 | ^(\d{3}[-\s]?){2}\d{3}$ | ^(d{3}[-s]?){2}d{3}$ | false | Link | |
533126 | numer tel | ^(d{3}[-s]?){2}d{3}$ | false | Link |