Php code for validating email

Also, you must remember that email address standard was and can evolute, so you can't just type some "standard-valid" regexp once and for all times. Just say me please, according what RFC the server assumes that [email protected] [email protected] the same address? And you will loose clients with some new valid emails.

If you want to learn more about email addresses I suggest you to start reading the specs, but I have to warn you it is not an easy read by any stretch: P. A note on the regex pattern used above (from the PHP source).Calling this function will issue an E_DEPRECATED notice.See the list of differences for help on converting to PCRE. Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site (the association bonus does not count).There are three rfc's regarding emailaddresses and writing a regex to catch wrong emailadresses and and the same time don't have false positives is something no mortal can do.Check out this list for tests (both failed and succeeded) of the regex used by PHP's is the best option.

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