Error handling in PHP with try-catch blocks is remarkably similar to error handling in other programming languages. The PHP runtime looks for a catch statement that can handle a PHP exception when it is thrown.
During the execution of a PHP application, it is possible for it to generate a wide range of warnings and errors. We'll go through all of the different ways to activate PHP errors and warnings in this tutorial.
If you're not familiar with the term "PHP worker", it's probably because you've never had to use them. They're background processes that run on your server that execute PHP code. Know what they are and what happens when your site does not have PHP workers.