PHP5轉換成PHP7

(1) $HTTP_SESSION_VAR ==> $_SESSION

(2) $HTTP_POST_VAR ==> $_POST

(3) $HTTP_GET_VAR ==> $_GET

(1) mysql_select_db("dbname") ==> mysqli_select_db($conn,"dbname")

(2) mysql_query("SET CHARACTER SET Big5"); ==> mysqli_query($conn, "SET CHARACTER SET Big5");

(3) mysql_connect ==> mysqli_connect

(4) mysql_num_rows($result) ==> mysqli_num_rows($result)

(5) mysql_fetch_object($result) ==> mysqli_fetch_object($result)