Regular Expressions 101

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Regular Expression
PCRE2 (PHP >=7.3)

/
^(?:([[:xdigit:]]{2})([^[:xdigit:]]?)(?1)(\2(?1))(?3){3}|((?1){2})((?2))(?4)\5(?4))$
/
gm
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Description

This regular expression matches various MAC addresses formats. It doesn't care about the case, neither the separator character as long as the same is used. Take a look at the test strings to learn more.

Submitted by anonymous - a month ago (Last modified a month ago)