How to Seamlessly Migrate from MySQL to MySQLi: A Step-by-Step Guide

Migrating from MySQL to MySQLi: A Detailed Guide

Migrating your website from MySQL to MySQLi offers improved performance and security. This guide will provide a comprehensive overview of the process.

Database Considerations

Unlike many database migrations, this transition does not require any modifications on the database end. The changes occur solely within the PHP code.

PHP Function Substitutions

Yes, you can substitute MySQLi functions for the deprecated MySQL functions. MySQLi provides a set of modern and highly optimized equivalents for each MySQL function.

Additional Considerations

In addition to function substitution, there are a few other factors to consider:

• Enable mysqli extension: Ensure the mysqli extension is enabled in your PHP configuration.
• Use PHP7.4 or higher: MySQLi support is deprecated in PHP7.4 and will be removed in future versions. Consider upgrading to a compatible version.
• Utilize prepared statements: Prepared statements enhance security by preventing SQL injection attacks. They should be used whenever you execute queries that involve user input.
• Handle errors gracefully: MySQLi provides robust error handling. Implement proper error checking and handling to gracefully handle any issues.

Converting to MySQLi

Converting your PHP code to MySQLi is straightforward. Here's an example of a query execution using both MySQL and MySQLi:

MySQL:

<code class="php">$resource = mysql_query($query);</code>

MySQLi:

<code class="php">$resource = mysqli_query($conn, $query);</code>

Recommended Resource

For further guidance, refer to the MySQLi documentation on Converting to MySQLi. It offers valuable information and tools to assist in the migration process.

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