Returns: PHP Version: 5.2.14 //On MY server, may be different depending on which version you have installed.
[email protected](16) "[email protected]" This feature is only available for PHP Versions (PHP 5 Rejection of so-called partial domains because of "missing" dot is not following section 2.3.5 of RFC 5321.
FILTER_VALIDATE_URL does not work with URNs, examples of valid URIs according to RFC3986 and if they are accepted by FILTER_VALIDATE_URL: [PASS] ftp://example.org/rfc/rfc1808[PASS] gopher://spinaltap.example.edu/00/Weather/California/Los Angeles [PASS] mailto:[email protected][PASS] news:comp.[PASS] telnet://example.edu/ [PASS] ldap://[2001:db8::7]/c=GB? in the domain part, a comment in the source code (in ext/filter/logical_filters.c) justifies this rejection thus: * The regex below is based on a regex by Michael Rushton. I changed it to only consider routeable * addresses as valid.
Michael's regex considers [email protected] a valid address * which conflicts with section 2.3.5 of RFC 5321 which states that: * * Only resolvable, fully-qualified domain names (FQDNs) are permitted * when domain names are used in SMTP.
When checking an email address its important to understand the information contained in the email header.
Information within the email header is used to track down the original sender of an email.
The description for FILTER_VALIDATE_URL seems incorrect/misleading. "Beware a valid URL may not specify the HTTP protocol" implies a valid URL cannot specify the HTTP protocol.
Having the ability to lookup, verify, validate and check an email address is extremely important to many computer users.
One of the most important reasons why consumers want to verify, validate and check an email address is to determine of email where you would like to send your message is "dead" or not.
This is building on my previous post on how to use regular expressions with j Query. Update 12/05/13: Separated into versions for testing.
//reported to validate incorrectly: [email protected] as true /[A-Z0-9._% -] @[A-Z0-9-] .