how to properly use while loop in PDO fetchAll
Solution 1:
With fetchAll() you don't have to use while at all. As this function returns an array, you have to use foreach() instead:
function getContent() {
$db = PDOconn();
$query = "SELECT * FROM posts ORDER BY id DESC LIMIT 0,3";
$sql = $db->prepare($query);
$sql->execute();
return $sql->fetchAll();
}
$data = getContent();
foreach($data as $row) {
$id = $row['id'];
$content = $row['content'];
}