What are the potential challenges when migrating from PHP 5.6 to PHP 8.0?

One potential challenge when migrating from PHP 5.6 to PHP 8.0 is the removal of deprecated features and changes in syntax. To address this, you will need to update your codebase to use the new syntax and functions introduced in PHP 8.0. Additionally, you may need to refactor any code that relies on deprecated features to ensure compatibility with the latest version. 

// Before PHP 8.0
mysql_connect('localhost', 'username', 'password');

// In PHP 8.0
$mysqli = new mysqli('localhost', 'username', 'password');

Keywords

PHP 5.6 PHP 8.0 migration backward compatibility deprecated features

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