REGEX
We need to mimic “AND” functionality using look ahead expression (?=expr). See the construct below: ^(?=.*?expr)(?=.*?expr)(?=.*?expr).*$ This functionality works in Java/Phyton/Perl/PHP and many other languages, however it might not be available in...
IT, REGEX
Select a line not containing “2D” string would look something like that: ^((?!2D).)*$ If you would like to select a lice which contains a phase or patern you would use the fallowing expresion: .*(2D).* In the first example, we use negative look ahead...
MSQL, mysql, REGEX, SQL
As of MySQL 8.0 and MariaDB 10 we can use native REGEXP_REPLACE function. See also See MariaDB docs and PCRE Regular expression enhancements. — REGEXP_REPLACE(col, regexp, replace) SELECT REGEXP_REPLACE(“stackoverflow”,...
*, PHP, REGEX
Regular expression types This is what confuses a lot of people. People tend to think that there is one engine for regex in PHP. However there are 2 types of regular expressions: POSIX ExtendedPerl Compatible (PCRE)...
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