Confusion with PDO prepared statements and date filtering in PHP 8.1
I'm working with an scenario while trying to filter records based on a date range using PDO prepared statements in PHP 8.1. I've written a function that fetches user transactions from a MySQL database, but I keep getting the 'No results found' behavior even when I know there are records that should match the criteria. Here's the relevant part of my code: ```php function getTransactions($startDate, $endDate) { $pdo = new PDO('mysql:host=localhost;dbname=testdb', 'user', 'password'); $query = 'SELECT * FROM transactions WHERE transaction_date BETWEEN :start_date AND :end_date'; $stmt = $pdo->prepare($query); $stmt->bindParam(':start_date', $startDate); $stmt->bindParam(':end_date', $endDate); $stmt->execute(); return $stmt->fetchAll(PDO::FETCH_ASSOC); } $transactions = getTransactions('2023-01-01', '2023-01-31'); print_r($transactions); ``` The database table has a `transaction_date` formatted as `YYYY-MM-DD`, and I'm passing the start and end dates as strings in the same format. I checked and verified that there are indeed records within that date range. However, when I call this function, it returns an empty array. I've tried different date formats, ensuring there are no leading or trailing spaces in the date strings, and even switching to using `DateTime` objects, but nothing seems to work. The database driver is set correctly, and I'm using MySQL version 8.0. Is there something I'm missing or any potential pitfalls with date comparisons in PDO that I should be aware of? My development environment is macOS. How would you solve this?