Upgrading from PHP 5.6 to PHP 7.2 on GoDaddy: A Comprehensive Guide

Upgrading from PHP 5.6 to PHP 7.2 on GoDaddy can provide significant performance improvements and access to new features. However, several considerations must be kept in mind to ensure a smooth transition. This guide outlines the steps and considerations for a successful upgrade.

Compatibility Issues and Code Updates

The transition from PHP 5.6 to PHP 7.2 involves several compatibility issues that need to be addressed. PHP 7 introduced several backward-incompatible changes, which may affect your application's code. It is essential to thoroughly review your code for deprecated functions, removed features, and changes in behavior.

Code Compatibility and Deprecation Changes

Removal of mysql extension: The mysql_ functions are no longer available in PHP 7.2. These functions should be replaced with mysqli_ or PDO (PHP Data Objects). Parameter handling changes: Some functions now handle parameters differently, which could lead to unexpected behavior. Strict typing and type declarations: PHP 7 enforces stricter typing, which means certain variable types must now be explicitly declared.

Third-Party Libraries and Frameworks

Compatibility of third-party libraries and frameworks is another critical aspect of the upgrade process. Ensure that all the frameworks, libraries, and plugins you are using are compatible with PHP 7.2. Visit the documentation or repository (like GitHub) to verify compatibility.

Testing Environment and Staging

A robust testing environment is necessary to identify and resolve any issues before upgrading your live site. Set up a staging environment to run your application on PHP 7.2 and thoroughly test it. This helps in catching any issues and mitigating potential downtime for your users.

Performance Improvements and Security Benefits

PHP 7.2 offers significant performance enhancements over PHP 5.6, leading to faster load times and reduced server resource usage. Additionally, since PHP 5.6 has reached its end of life, upgrading to PHP 7.2 ensures access to ongoing support and security patches.

Steps to Upgrade on GoDaddy

Backup Your Site: Always back up your files and database before making any changes. Change PHP Version: Log in to your GoDaddy account and navigate to your hosting account. From there, find the option to change the PHP version to 7.2. Test Your Site: After upgrading, thoroughly test your site to catch any issues that may arise. Ensure that all features are functioning as expected and that there are no unexpected bugs.

Conclusion

While upgrading from PHP 5.6 to PHP 7.2 on GoDaddy can significantly improve performance and security, it is crucial to ensure that your code and dependencies are compatible. Thorough testing and preparation can mitigate potential issues. If you are unsure about specific code changes, consider consulting the PHP migration guides or a developer for assistance.