How does uncaught exception catching work in PHP 8?

In previous PHP versions, if we wanted to catch an exception, then we needed to store it in a variable to check if the variable was used.

Before PHP 8, in order to handle exception catching blocks, we needed to catch the exception (thrown by the try block) into a variable.

Example: Catching exceptions in PHP

<?php
   function foo()
   {
      try{
         throw new Exception(&#39;Hello&#39;);
      }
      catch (Exception $e) {
         return $e->getMessage();
      }
   }
?>

Explanation − In the above program, the exception is caught by the catch block into a variable $e. Now the $e variable can save any information about the exception, such as code, message, etc.

PHP 8Introduced non-capturing catch. It is now possible to catch exceptions without capturing them in variables. We can ignore this variable for now.

Example: Non- Capturing Exception Catches in PHP 8

<?php
   try{
      throw new Exception(&#39;hello&#39;);
   }
   catch (Exception) { // $e variable omitted
}
?>

Note: In the above program, we did not use the $e variable to save Exception information.

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