function is_email($email) {
?? ??? ?$exp = "^[a-z'0-9]+([._-][a-z'0-9]+)*@([a-z0-9]+([._-][a-z0-9]+))+$";
?? ??? ?if(eregi($exp,$email)) {
?? ??? ??? ?return true;
?? ??? ?}
?? ??? ?return false;
?}
function is_email($email) {
?? ??? ?$exp = "^[a-z'0-9]+([._-][a-z'0-9]+)*@([a-z0-9]+([._-][a-z0-9]+))+$";
?? ??? ?if(eregi($exp,$email)) {
?? ??? ??? ?return true;
?? ??? ?}
?? ??? ?return false;
?}