set_charset("utf8");
//2.刪除記錄
$str = "";
if(isset($_POST['t1']))$str = $_POST['t1'];
if($conn->query("delete from books where 書籍編號=".$str))
echo "成功刪除";
else
echo "無法刪除";
//3.查詢最新的資料表books
$result = $conn->query("select * from books");
//4.輸出全部資料
$all = $result->fetch_all(MYSQLI_BOTH);
?>
Document
close();
?>