How do I perform CRUD operations with PDO?

Performing CRUD (Create, Read, Update, Delete) operations using PHP Data Objects (PDO) is essential for interacting with a database securely and efficiently. Below is a simple demonstration of how these operations can be carried out using PDO.

This example showcases how to connect to a database, insert new records, retrieve existing records, update records, and delete records using PDO in PHP.

PHP, PDO, CRUD operations, database interaction, secure database access


        <?php
        // Database connection
        $host = '127.0.0.1';
        $db = 'my_database';
        $user = 'my_user';
        $pass = 'my_password';
        $charset = 'utf8mb4';

        $dsn = "mysql:host=$host;dbname=$db;charset=$charset";
        $options = [
            PDO::ATTR_ERRMODE            => PDO::ERRMODE_EXCEPTION,
            PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
            PDO::ATTR_EMULATE_PREPARES   => false,
        ];

        try {
            $pdo = new PDO($dsn, $user, $pass, $options);
        } catch (\PDOException $e) {
            throw new \PDOException($e->getMessage(), (int)$e->getCode());
        }

        // Create
        $stmt = $pdo->prepare("INSERT INTO users (name, email) VALUES (?, ?)");
        $stmt->execute(['John Doe', 'john@example.com']);

        // Read
        $stmt = $pdo->query("SELECT * FROM users");
        $users = $stmt->fetchAll();
        foreach ($users as $user) {
            echo $user['name'] . '<br>';
        }

        // Update
        $stmt = $pdo->prepare("UPDATE users SET email = ? WHERE name = ?");
        $stmt->execute(['john.doe@example.com', 'John Doe']);

        // Delete
        $stmt = $pdo->prepare("DELETE FROM users WHERE name = ?");
        $stmt->execute(['John Doe']);
        ?>

How do I perform CRUD operations with PDO?

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How do I perform CRUD operations with PDO?

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