Regular Expressions 101

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Regular Expression
pcre

/
(?=.*\d)(?=.*[a-z])(?=.*[A-Z])(?!.*[\!\@\#\$\%\^\&\*\(\)\[\]\{\}\`\~\|\\\/\?\>\<\.\,\:\;\'\"]).{1,20}
/

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Submitted by anonymous - 5 years ago