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best practices for 'Array to string conversion' scenarios when using PDO with MySQL in PHP 8.1?

👀 Views: 421 đŸ’Ŧ Answers: 1 📅 Created: 2025-07-03
PHP PDO MySQL error-handling

I'm writing unit tests and I'm working with an 'Array to string conversion' behavior when trying to bind parameters in a prepared statement with PDO in PHP 8.1... Here's the scenario: I'm attempting to insert multiple rows into a table and I'm using an associative array for the data. My code looks like this: ```php $data = [ ['name' => 'John', 'email' => 'john@example.com'], ['name' => 'Jane', 'email' => 'jane@example.com'], ]; $db = new PDO('mysql:host=localhost;dbname=testdb', 'user', 'pass'); $db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); $stmt = $db->prepare('INSERT INTO users (name, email) VALUES (:name, :email);'); foreach ($data as $user) { $stmt->bindParam(':name', $user['name']); $stmt->bindParam(':email', $user['email']); $stmt->execute(); } ``` However, I keep getting the behavior message: "PHP Warning: Array to string conversion on line X" at the `bindParam` line where I bind the parameters. I thought that the associative array elements would be correctly passed to the placeholders. I've tried using `bindValue` instead, but the question continues. Is there something wrong with my approach, or do I need to adjust the way I'm handling the data? Any suggestions would be greatly appreciated! I'm working on a API that needs to handle this. My development environment is Linux. What's the best practice here? I've been using Php for about a year now. Any advice would be much appreciated.