mysql_error -> mysqli_error( $link)

mysql_fetch_array -> mysqli_fetch_array( $result, $type)

mysql_fetch_assoc -> mysqli_fetch_assoc( $result)

mysql_fetch_row -> mysqli_fetch_row( $result)

mysql_insert_id -> mysqli_insert_id( $link)

mysql_num_rows ->  mysqli_num_rows( $result)

mysql_query -> mysqli_query( $link, $query)

mysql_real_escape_string -> mysqli_real_escape_string( $link)

mysql_select_db - > mysqli_select_db( $link, $database)

mysql_set_charset -> mysqli_set_charset( $link, $charset)

mysql_thread_id -> mysqli_thread_id( $link)