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Convert MySQL Code to MySQLi: A Comprehensive Guide
Updating from MySQL to MySQLi is a recommended step to enhance the security and efficiency of your PHP applications. Since MySQL has been deprecated, MySQLi offers modern features and improved performance.
For developers who are unfamiliar with MySQLi, transitioning can be challenging. Here's how you can transform your MySQL code to MySQLi:
Converting the Provided MySQL Code to MySQLi
To convert the example code provided, you can follow these steps:
The updated code using MySQLi would look like this:
<code class="php">$mysqli = mysqli_connect(...); $stmt = mysqli_prepare($mysqli, "SELECT * FROM friends WHERE user1_id = ? AND status = 2 OR user2_id = ? AND status = 2"); mysqli_stmt_bind_param($stmt, 'ii', $_SESSION['id'], $_SESSION['id']); mysqli_stmt_execute($stmt); $result = mysqli_stmt_get_result($stmt); if ($result && mysqli_num_rows($result) > 0) { // Process results }</code>
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