Error handling in Object

[drewbee]

I have a class Page which handles any given pages needed resources and output/display. IE, it does the database connections, session handling, and general html output.

 

I want to use override the default error handler for PHP using set_error_handler() inside of this Page class, however I am having problems accessing the method errorHandler.

 

<?

function errorHandler($errno, $errstr, $errfile, $errline)
{
	switch ($errno) {
		case E_USER_ERROR:
			echo "<b>My ERROR</b> [$errno] $errstr<br />\n";
			echo "  Fatal error on line $errline in file $errfile";
			echo ", PHP " . PHP_VERSION . " (" . PHP_OS . ")<br />\n";
			echo "Aborting...<br />\n";
			exit(1);
			break;

		case E_USER_WARNING:
			echo "<b>My WARNING</b> [$errno] $errstr<br />\n";
			break;

		case E_USER_NOTICE:
			echo "<b>My NOTICE</b> [$errno] $errstr<br />\n";
			break;

		default:
			echo "Unknown error type: [$errno] $errstr<br />\n";
			break;
		}

	return true;
}
?>

 

However, I am having a very hard time accessing this method through set_error_handler, from within the class.

 

I have tried:

 

<?
set_error_handler('Page::errorHandler');
set_error_handler(Page::errorHandler);
set_error_handler('Page::errorHandler()');
set_error_handler(Page::errorHandler($errno, $errstr, $errfile, $errline));
set_error_handler('Page::errorHandler($errno, $errstr, $errfile, $errline)');
set_error_handler(Page::errorHandler());
set_error_handler('$this->errorHandler');
set_error_handler('Page::errorHandler()');
set_error_handler('$this->errorHandler');
set_error_handler('$this->errorHandler()');
set_error_handler('$this->errorHandler($errno, $errstr, $errfile, $errline)');
set_error_handler($this->errorHandler());
set_error_handler($this->errorHandler($errno, $errstr, $errfile, $errline));
?>

 

All with relatively no success. If this catches certain errors, i want to throw my custom throwError or throwWarning functions, however, the first step is finding out how to properly access my callback function through set_error_handler();

 

If you have any ideas, insight etc that may be useful, please let me know.

 

The straight down and dirty question is: How do I access a callback method belonging to a class, from that class's constructor.

Thanks

[keeB]

I am unsure why you would go this route instead of using Exceptions.

 

As to your question, I have no idea, unfortunately. Never used set_error_handler before.

[drewbee]

I do use exceptions. Sort of. Probobly should use them more though, eh?

 

I wanted to go this route as a sort-of global catch all and anything thats missed within the classes.

[448191]

As with callbacks, you have to use an array:

 

set_error_handler(array($this, 'throwError'));