Why the regular season with Cyrillic not working?

There is for example the expression "zai Banzai" if I use the regular season \bзай\b it will not work on the word "Zay", if you do the same in the Latin alphabet everything is OK. I'm not a guru regexps, but can in the regular season to indicate the use of Unicode? There is an old Perl crm and there is a filter regexps, but with Cyrillic it is that=it doesn't like https://regex101.com/
April 19th 20 at 12:33
1 answer
April 19th 20 at 12:35
What programming language? In PHP it is necessary to specify the modifier u to work with strings in UTF-8.
perl - ernestina73 commented on April 19th 20 at 12:38
@ernestina73the same - Coty commented on April 19th 20 at 12:41

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