We can use the Zend_Dubug component for dumping back to the web browser screen the values of expressions in our code.

	$a = 23;
	$b = 12;
	$sum = $a + $b;
	Zend_Debug::dump("a=".$a);
	Zend_Debug::dump("b=".$b);
	Zend_Debug::dump("sum=".$sum);

The following video clip shows a code sample for using the Zend_Debug component.

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