Multiple queries using PDO - php

Question

So here's my problem :
I have different queries on a same PHP page (SELECT queries). Each of these queries work fine separately (I have tested them).
These queries are used to make html tables and then to display graphs with a jquery plugin (the users are able to choose the graphs that they want to display on the page thanks to check-boxes).However, I can display only one graph because there's only one query that works when I refresh the page. The others return no result. I have tried using the function NextRowset() with a do-while but it doesn't work (even though there is no error)
Here is a part of my code so that you can see :
foreach($_POST['choixCourbe'] as $choixCourbe) {
if ($choixCourbe=='courantBatterie') {
$sql = 'SELECT batteryCurrent FROM data ORDER BY id'
$stmt = $bdd->prepare($sql1);
$stmt->execute();
do {
$rows = $stmt->fetchAll(PDO::FETCH_BOTH);} while ($stmt->nextRowset());
if ($rows == false) { echo 'No result';}
else { /*create table*/ }
$stmt->closeCursor();
}
if ($choixCourbe=='courantSolaire') {
$sql = 'SELECT sunCurrent FROM data ORDER BY id';
$stmt = $bdd->prepare($sql);
$stmt->execute();
do {
$rows = $stmt->fetchAll(PDO::FETCH_BOTH);} while ($stmt->nextRowset());
if ($rows == false) {echo 'No result';}
else {/*create table*/}
$stmt->closeCursor();
}
}
On the code above, the user should be able to see two graphs when he clicks on the two corresponding check-boxes (I have checked that both values of the check-boxes are correctly taken into account so that's not the problem) but there's currently one graph.
Any idea of what the problem is ?
Thanks for your answers,
Sophie

Answer 1

As far as I can see, the problem is as silly as two contradicting conditions,
if ($choixCourbe=='courantBatterie') {
and
if ($choixCourbe=='courantSolaire') {
of which only one can be executed at a time, obviously.
So, the problem is rather HTML related. make your checkbox names like choixCourbe[] and then use in_array() in PHP to test if particular value were selected.