PHP PDO无法删除记录

Question

I'm having a bit of a problem with PDO deleting a record from the database.

It just returns false, and I can't seem to see why, can anyone help? The code:

$db = new PDO('sqlsrv:Server='.DB_HOST.';Database='.DB_NAME, DB_USER, DB_PASS);
$query = $db->prepare('DELETE * FROM '.$table.' WHERE id = :id');
$query->bindValue(':id', $id);
$query->execute();

I've also tried:

$db = new PDO('sqlsrv:Server='.DB_HOST.';Database='.DB_NAME, DB_USER, DB_PASS);
$db->exec('DELETE * FROM '.$table.' WHERE id = '.$id);

And I know the user from the DB has permissions to delete because I can run the query with success in the SQL client.

Any ideas?

Thanks :)

Answer 1

DELETE FROM $table WHERE id = $id

• there is no * in the DELETE statement

Go here for some easy documentation .

Answer 2

Your first example is fine, bar one error

$db = new PDO('sqlsrv:Server='.DB_HOST.';Database='.DB_NAME, DB_USER, DB_PASS);
$query = $db->prepare('DELETE FROM '.$table.' WHERE id = :id');
$query->bindValue(':id', $id);
$query->execute();

You don't need a * in a simple delete statement.

FYI, rowCount() will work well for confirming the delete worked, as follows:

$countDel = $query->rowCount();
if ($countDel == 0) {
echo "No rows deleted";
}