PDO were rows affected during execute statement
Try $q->rowCount(). Prepared statements will return the number of affected rows via that method.
prepared-statement
How can I Insert JSON object into Postgres using Java preparedStatement?
This behaviour is quite annoying since JSON strings are accepted without problems when used as literal strings in SQL commands. There is a already an issue for this in the postgres driver Github repository (even if the problem seems the be the serverside processing). Besides using a cast (see answer of @a_horse_with_no_name) in the sql … Read more
How to make a fully dynamic prepared statement using mysqli API?
An excellent question. And thank you for moving to prepared statements. It seems that after all those years of struggle, the idea finally is starting to take over. Disclaimer: there will be links to my own site because I am helping people with PHP for 20+ years and got an obsession with writing articles about … Read more
Using fetch_assoc on prepared statements
That’s because fetch_assoc is not part of a mysqli_stmt object. fetch_assoc belongs to the mysqli_result class. You can use mysqli_stmt::get_result to first get a result object and then call fetch_assoc: $selectUser = $db->prepare(“SELECT `id`,`password`,`salt` FROM `users` WHERE `username`=?”); $selectUser->bind_param(‘s’, $username); $selectUser->execute(); $result = $selectUser->get_result(); $assoc = $result->fetch_assoc(); Alternatively, you can use bind_result to bind the … Read more
Retrieve (or simulate) full query from PDO prepared statement
I believe this is mentioned in the original question that was reference in this one. However there is actually supposed to be a method for retrieving this data. PDOStatement::debugDumpParams However it isn’t currently working as documented. There is a bug report and patch submitted for it here http://bugs.php.net/bug.php?id=52384 in case anyone is interested in voting … Read more
In SQLite, do prepared statements really improve performance?
Prepared statements improve performance by caching the execution plan for a query after the query optimizer has found the best plan. If the query you’re using doesn’t have a complicated plan (such as simple selects/inserts with no joins), then prepared statements won’t give you a big improvement since the optimizer will quickly find the best … Read more
Can parameterized statement stop all SQL injection?
When articles talk about parameterized queries stopping SQL attacks they don’t really explain why, it’s often a case of “It does, so don’t ask why” — possibly because they don’t know themselves. A sure sign of a bad educator is one that can’t admit they don’t know something. But I digress. When I say I … Read more
MySQLi prepared statements with IN operator [duplicate]
I’ve recently found the solution for my question. Maybe it’s not the best way to do it, but it works nice! Prove me wrong:) <?php $lastnames = array(‘braun’, ‘piorkowski’, ‘mason’, ‘nash’); $arParams = array(); foreach($lastnames as $key => $value) //recreate an array with parameters explicitly passing every parameter by reference $arParams[] = &$lastnames[$key]; $count_params = … Read more
mysql prepared statement error: MySQLSyntaxErrorException
error is in this line rs = stmt.executeQuery(selectSQL); do this way rs = stmt.executeQuery();
Error while using PDO prepared statements and LIMIT in query [duplicate]
You can do like this: $sql = SELECT * FROM tbl_news ORDER BY date DESC LIMIT :start, :rows”; $q = $db->prepare($sql); $q->bindParam(‘:start’, $start, PDO::PARAM_INT); $q->bindParam(‘:rows’,$rows, PDO::PARAM_INT);