Overshadows e-mail

hiddenEmail.php

function hiddenEmail($email, $domain_ = false){

		$seg = explode('@', $email);
		$user = '';
		$domain = '';

		if (strlen($seg[0]) > 3) {
			$sub_seg = str_split($seg[0]);
			$user .= $sub_seg[0].$sub_seg[1];
			for ($i=2; $i < count($sub_seg)-1; $i++) { 
				if ($sub_seg[$i] == '.') {
					$user .= '.';
				}else if($sub_seg[$i] == '_'){
					$user .= '_';
				}else{
					$user .= '*';
				}
			}
			$user .= $sub_seg[count($sub_seg)-1];
		}else{
			$sub_seg = str_split($seg[0]);
			$user .= $sub_seg[0];
			for ($i=1; $i < count($sub_seg); $i++) { 
				$user .= ($sub_seg[$i] == '.') ? '.' : '*';
			}
		}

		$sub_seg2 = str_split($seg[1]);
		$domain .= $sub_seg2[0];
		for ($i=1; $i < count($sub_seg2)-2; $i++) { 
			$domain .= ($sub_seg2[$i] == '.') ? '.' : '*';
		}

		$domain .= $sub_seg2[count($sub_seg2)-2].$sub_seg2[count($sub_seg2)-1];

		return ($domain_ == false) ? $user.'@'.$seg[1] : $user.'@'.$domain ;

	}