Regular Expression Domain Name Validation. Above pattern makes sure domain name matches the following criteria. Regex to validate email address noteworthy.
This is very useful when validating web forms. Validate a Domain Name Case sensitive regex to verify if a string is a valid domain name. 2 It allows heirarchical domain names eg.
You can but you shouldntread on implement it with the following regular expression.
For more information about the native functions for PHP regular expressions have a look at the manual. Validating Domain Names Problem You want to check whether a string looks like it may be a valid fully qualified domain name or find such domain names in longer - Selection from Regular Expressions Cookbook 2nd Edition Book. If you tell the truth you dont have to remember anything. Can anybody tell me how to validate name textbox with regular expression validation.