What resources or tutorials are recommended for PHP beginners looking to update their programming skills?

For PHP beginners looking to update their programming skills, it is recommended to utilize online resources such as W3Schools, PHP.net, and tutorials on websites like Udemy or Codecademy. These resources offer comprehensive guides, tutorials, and exercises to help beginners learn and practice PHP programming concepts.

// Example code snippet for updating PHP programming skills
<?php
echo "Hello, world!";
?>