ลองเอาโค้ดมาแก้ดูแล้วมันขึ้นแบบนี้มาครับ
Warning: mysqli_select_db() expects exactly 2 parameters, 1 given in C:\xamppz\htdocs\webboard\phpMySQLListRecordPaging.php on line 8
Warning: mysqli_query() expects at least 2 parameters, 1 given in C:\xamppz\htdocs\webboard\phpMySQLListRecordPaging.php on line 10
Error Query [SELECT * FROM customer ]