Regular Expressions 101

Community Patterns

Validation

1

Regular Expression
PCRE (PHP <7.3)

/
^([a-z0-9])(([a-z0-9-]{1,61})?[a-z0-9]{1})?(\.[a-z0-9](([a-z0-9-]{1,61})?[a-z0-9]{1})?)?(\.[a-z]{2,4})+?|(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)(\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$
/

Description

no description available

Submitted by Robin Venneman - 8 years ago