note 95324 added to function.filter-var

<?php // RAY_email_validation.php error_reporting(E_ALL); // A FUNCTION TO TEST FOR A VALID EMAIL ADDRESS, RETURN TRUE OR FALSE function check_valid_email($email) { // IF PHP 5.2 OR ABOVE, WE CAN USE THE FILTER // MAN PAGE: http://us3.php.net/manual/en/intro.filter.php if (strnatcmp(phpversion(),'5.2') >= 0) { if(filter_var($email, FILTER_VALIDATE_EMAIL) === FALSE) return FALSE; } else { $regex = '/^[A-Z0-9_-][A-Z0-9._-]*@([A-Z0-9][A-Z0-9-]*\.)+[A-Z\.]{2,6}$/i'; if (!preg_match($regex, $email)) return FALSE; } // FILTER or PREG DOES NOT TEST IF THE DOMAIN OF THE EMAIL ADDRESS IS ROUTABLE $domain = explode('@', $email); if ( checkdnsrr($domain[1],"MX") || checkdnsrr($domain[1],"A") ) return TRUE; // EMAIL NOT ROUTABLE return FALSE; } // DEMONSTRATE THE FUNCTION IN ACTION if (!empty($_GET["e"])) { $e = $_GET["e"]; if (check_valid_email($e)) { echo "<br/>VALID: $e \n"; } else { echo "<br/>BOGUS: $e \n"; } } // END OF PHP - PUT UP THE FORM ?> <form method="get"> TEST A STRING FOR A VALID EMAIL ADDRESS: <input name="e" /> <input type="submit" /> </form> ---- Server IP: 64.71.164.2 Probable Submitter: 74.9.128.130 ---- Manual Page -- http://www.php.net/manual/en/function.filter-var.php Edit -- https://master.php.net/note/edit/95324 Del: integrated -- https://master.php.net/note/delete/95324/integrated Del: useless -- https://master.php.net/note/delete/95324/useless Del: bad code -- https://master.php.net/note/delete/95324/bad+code Del: spam -- https://master.php.net/note/delete/95324/spam Del: non-english -- https://master.php.net/note/delete/95324/non-english Del: in docs -- https://master.php.net/note/delete/95324/in+docs Del: other reasons-- https://master.php.net/note/delete/95324 Reject -- https://master.php.net/note/reject/95324 Search -- https://master.php.net/manage/user-notes.php