set_exception_handler function within a class for example codeigniter

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Here is how to use the set_exception_handler function within a class

the defined exception_handler method must be declared as public preferably public static if using the array syntax like array(’Abc’, ‘exception_handler’) as suggested in php.net site.

class Abc extends CI_Controller {
 
    function __construct()
    {
        parent::__construct();
        set_exception_handler(array('Abc', 'exception_handler');
        //also you can use array($this, 'exception_handler')     
    }       
 
    function exception_handler(Exception $ex)
    {        
        echo $ex->getMessage();
    }
 
    function Index()
    {
        throw new Exception('hehe');
    }
}

The exception handler must be defined before calling set_exception_handler()

so the above code sets the default exception handler if an exception is not caught within a try/catch block. Execution will stop after the exception_handler is called.

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