$username, 'user_pass' => $pass, 'first_name' => $first_name, 'last_name' => $last_name); $user_id = username_exists( $username ); if ( !$user_id ) { $user_id = wp_insert_user($userdata); echo "[new] $user_id : $username,$first_name,$last_name\n"; } else { //echo "$user_id\n"; } }