note 102540 added to function.filter-var

This is what I would call a "full email check". This wont check if the domain is a valid email sender, but it does check if it's a valid domain. It also check every possible flaw of the email address, from length to the most unbelieveable character. I will use this for my CMS (Sourceforge: so44), hope someone find this useful. Please take not of the Copyright. I've added a little note of it at the bottom to show that the PHP group has also modified this regex. <?php /* Valid Email Please add a note that Sondre B. Aasen [ eleljrk@gmail.com ] wrote this function */ function ve($veEmail) { if(strlen($veEmail) > 320) { return FALSE; } /* The following regex is under this copyright: Copyright © Michael Rushton 2009-2010 http://squiloople.com/ The regex has been modified by: Derick Rethans and Pierre-A. Joye (The PHP Group) */ // Remove all the line breaks from the regex, I had to add them because of a posting issue here on php.net if(!preg_match("/^(?!(?: (?:\\x22?\\x5C[\\x00-\\x7E]\\x22?)| (?:\\x22?[^\\x5C\\x22]\\x22?)) {255,})(?!(?:(?:\\x22?\\x5C[\\x00-\\x7E]\\x22?) |(?:\\x22?[^\\x5C\\x22]\\x22?)){65,}@) (?:(?:[\\x21\\x23-\\x27\\x2A \\x2B\\x2D\\x2F-\\x39\\x3D\\x3F\\x5E-\\x7E]+) |(?:\\x22(?:[\\x01-\\x08\\x0B \\x0C\\x0E-\\x1F\\x21\\x23-\\x5B\\x5D-\\x7F] |(?:\\x5C[\\x00-\\x7F]))*\\x22)) (?:\\.(?:(?:[\\x21\\x23-\\x27\\x2A \\x2B\\x2D\\x2F-\\x39\\x3D\\x3F\\x5E-\\x7E]+) |(?:\\x22(?:[\\x01-\\x08\\x0B\\x0C \\x0E-\\x1F\\x21\\x23-\\x5B\\x5D-\\x7F]| (?:\\x5C[\\x00-\\x7F]))*\\x22)))*@ (?:(?:(?!.*[^.]{64,})(?:(?:(?:xn--)? [a-z0-9]+(?:-[a-z0-9]+)*\\.) {1,126}){1,}(?:(?:[a-z][a-z0-9]*) |(?:(?:xn--)[a-z0-9]+))(?:-[a-z0-9]+)*) |(?:\\[(?:(?:IPv6:(?:(?:[a-f0-9] {1,4}(?::[a-f0-9]{1,4}){7})| (?:(?!(?:.*[a-f0-9] [:\\]]){7,})(?:[a-f0-9]{1,4} (?::[a-f0-9]{1,4}) {0,5})?::(?:[a-f0-9]{1,4}(?::[a-f0-9] {1,4}){0,5})?))) |(?:(?:IPv6:(?:(?:[a-f0-9]{1,4}(?::[a-f0-9] {1,4}){5}:)|(?:(?!(?:.*[a-f0-9]:){5,}) (?:[a-f0-9]{1,4}(?::[a-f0-9]{1,4}) {0,3})?::(?:[a-f0-9]{1,4}(?::[a-f0-9] {1,4}){0,3}:)?)))?(?:(?:25[0-5]) |(?:2[0-4][0-9]) |(?:1[0-9]{2})|(?:[1-9]?[0-9])) (?:\\.(?:(?:25[0-5]) |(?:2[0-4][0-9])|(?:1[0-9] {2})|(?:[1-9]?[0-9]))) {3}))\\]))$/iD", $veEmail)) { return FALSE; } if(!function_exists("checkdnsrr")) { exec("nslookup -type=ANY ".end(explode("@", $veEmail)), $matches); foreach($matches as $match) { if(preg_match("^".end(explode("@", $veEmail))."i", $match)) { return TRUE; } } return FALSE; } elseif(!checkdnsrr(end(explode("@", $veEmail)), "ANY")) { return FALSE; } return TRUE; } ?> ---- Server IP: 85.19.212.230 Probable Submitter: 62.16.216.39 ---- Manual Page -- http://www.php.net/manual/en/function.filter-var.php Edit -- https://master.php.net/note/edit/102540 Del: integrated -- https://master.php.net/note/delete/102540/integrated Del: useless -- https://master.php.net/note/delete/102540/useless Del: bad code -- https://master.php.net/note/delete/102540/bad+code Del: spam -- https://master.php.net/note/delete/102540/spam Del: non-english -- https://master.php.net/note/delete/102540/non-english Del: in docs -- https://master.php.net/note/delete/102540/in+docs Del: other reasons-- https://master.php.net/note/delete/102540 Reject -- https://master.php.net/note/reject/102540 Search -- https://master.php.net/manage/user-notes.php