note 71910 added to function.eregi

I am using the eregi function but when combine with the explode function, it returns an invalid email. Even when the email is correct. Here is my code: if(empty($profile)) { $host = $_SERVER['HTTP_HOST']; $uri = rtrim(dirname($_SERVER['PHP_SELF']), '/\\'); $extra = "quickForm.php?empty=true&dl=$newsletter"; header("Location: http://$host$uri/$extra"); exit; } else { $tmp = explode("\n", $profile); $firstname = $tmp[0]; $lastname = $tmp[1]; $Street = $tmp[2]; $City = $tmp[3]; $State = $tmp[4]; $Zip = $tmp[5]; $Country = $tmp[6]; $Email = $tmp[7]; $Phone = $tmp[8]; // do some basic error checking if(!empty($Email)) { // if there was some email address provided, then vet it if (!eregi ("^([a-z0-9_]|\\-|\\.)+@(([a-z0-9_]|\\-)+\\.)+[a-z]{2,4}$", $Email)) { $host = $_SERVER['HTTP_HOST']; $uri = rtrim(dirname($_SERVER['PHP_SELF']), '/\\'); $extra = "quickForm.php?send=no&dl=$newsletter"; header("Location: http://$host$uri/$extra"); exit; } } Any ideas how to prevent this? ---- Server IP: 64.71.164.2 Probable Submitter: 24.21.179.161 ---- Manual Page -- http://www.php.net/manual/en/function.eregi.php Edit -- https://master.php.net/note/edit/71910 Del: integrated -- https://master.php.net/note/delete/71910/integrated Del: useless -- https://master.php.net/note/delete/71910/useless Del: bad code -- https://master.php.net/note/delete/71910/bad+code Del: spam -- https://master.php.net/note/delete/71910/spam Del: non-english -- https://master.php.net/note/delete/71910/non-english Del: in docs -- https://master.php.net/note/delete/71910/in+docs Del: other reasons-- https://master.php.net/note/delete/71910 Reject -- https://master.php.net/note/reject/71910 Search -- https://master.php.net/manage/user-notes.php