So as the title says i'm having an issue when trying to display the 5 results from my sql query i don't know how to convert them to an array,
# Collection of SQL try { $sql = $conn->query("SELECT Channel_Location FROM channels ORDER BY RAND() Limit 5"); } catch(PDOException $e) { echo $sql . "<br>" . $e->getMessage(); } foreach($sql->fetchAll(PDO::FETCH_ASSOC) as $c) { echo $c . "<br>"; } $conn = null;
I can't work out how to display the results, it displays one result if i change foreach($sql->fetchAll(PDO::FETCH_ASSOC) as $c) { to foreach($sql->fetch(PDO::FETCH_ASSOC) as $c) { but i need it to display each result
$sql = "SELECT Channel_Location FROM channels ORDER BY RAND() Limit 5"; $channels = $conn->query($sql)->fetchAll(PDO::FETCH_COLUMN); foreach($channels as $c) { echo $c . "<br>"; }
Your main problem is that you are trying to use a variable knowing nothing of its type. It goes both for $sql (which is also misnamed) and for the fetchAll result. You are supposed to know the variable type beforehand, either from the manual or from a quick test. $sql does not contain an SQL string and you cannot echo it out. the fetchAll result contains a nested array, means when you iterate it over, you still have an array as an item, which you cannot echo directly as well. To test a variable and to see whether you can echo it out, always use var_dump() in case of trouble.
To solve all the numerous problems you have to
- name your variables properly (to distinguish an SQL query from a statement)
- get rid of try catch (as PHP will already report an error for you)
- use PDO::FETCH_COLUMN instead of PDO::FETCH_ASSOC which will give you the desired result type - a single-dimensioned atrray.
