Insert Code
$tid = $_POST['tid'];
$hhhhhh = $_POST['hhhhhh'];


// please remove last ' , (coma)' from fileds

mysqli_query($conn,"INSERT INTO `wwwwww` ( `tid`,`hhhhhh`, ) VALUES ('$tid','$hhhhhh',)");
Select Single
$getdata = mysqli_query($conn,"SELECT * FROM wwwwww ");
$row = mysqli_fetch_array($getdata);
$tid = $row['tid'];
$hhhhhh = $row['hhhhhh'];
Select While
$getdata = mysqli_query($conn,"SELECT * FROM wwwwww ");
while($row = mysqli_fetch_array($getdata)) {
$tid = $row['tid'];
$hhhhhh = $row['hhhhhh'];
}
Delete Code
$getid = $_GET['id'];
mysqli_query($conn,"DELETE FROM wwwwww WHERE tid ='$id' ");
Update Single Code
$tid = $_POST['tid'];
$hhhhhh = $_POST['hhhhhh'];

mysqli_query($conn,"UPDATE `wwwwww` SET `tid` = '$tid' WHERE `wwwwww`.`tid` = 1")
mysqli_query($conn,"UPDATE `wwwwww` SET `hhhhhh` = '$hhhhhh' WHERE `wwwwww`.`tid` = 1")