How to Seamlessly Migrate Your PHP Application from MySQL to mysqli?

Migrating from MySQL to mysqli: A Comprehensive Guide

Many developers face the challenge of migrating their PHP applications from the legacy MySQL extension to the more modern mysqli extension. To address this issue, let's explore the specifics of this migration.

PHP Changes

At the heart of the migration lies the substitution of MySQL functions with mysqli functions. For instance, you should replace mysql_connect() with mysqli_connect(), and so on. While this is the primary change, there are a few other considerations to keep in mind.

Database Considerations

Contrary to common belief, there are no required changes on the database end. The database remains unchanged, allowing you to continue using the MySQL server without modifications.

Additional Tips

To streamline your migration process, you can leverage the "Converting to MySQLi" tool (available at the link provided in the answer above). It provides valuable guidance and a tool to assist in your migration efforts.

Example Substitution

Let's illustrate a simple substitution:

<code class="php">// Before:
$link = mysql_connect("host", "user", "password");

// After:
$link = mysqli_connect("host", "user", "password");</code>

By following these steps and heeding the additional tips, you can effectively migrate your site from MySQL to mysqli, ensuring a smooth transition for your PHP applications.

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