What are the advantages and disadvantages of creating a custom blog system in PHP instead of using existing CMS or frameworks?

Creating a custom blog system in PHP allows for complete control over the functionality and design of the blog. This can be advantageous for those who have specific requirements that may not be met by existing CMS or frameworks. However, building a custom blog system from scratch can be time-consuming and may require more technical expertise.

<?php
// Custom blog system code snippet
// Implement your custom blog functionality here
?>