Check Username Forum Field

[PrinceOfDragons]

I have a function I came up with to use to check a username input from the forum field, Im just wondering if someone can check it and tell me if there is a better way of doing it. Thank You!!!

 

	function checkUname() {
	global $uname;

	if($this->username == "") {
		echo "Username field is blank"; $this->myErrors++;
}		elseif($uname != $_POST['username'] && $_POST['Log-In'] == "Log-In"){
		echo "Username does not exist"; $this->myErrors++;
}		elseif(strlen($this->username) < "5") {
		echo "Username is to short"; $this->myErrors++;
}		elseif(!eregi("^([0-9a-z])*$", $this->username)) {
		echo "Username is not Alphanumeric"; $this->myErrors++;			
}		elseif($uname == true && $_SESSION['create'] == "Create Account"){
		echo "Username Taken"; $this->myErrors++;

[PrinceOfDragons]

No help ?  :'(

[Russia]

This forum is I think dead. No one reply's to my topics either...

[PrinceOfDragons]

I see plenty of other topics being replied to why not mine  :'(.