CakePHP debug function

/**
 * Prints out debug information about given variable.
 *
 * Only runs if debug level is greater than zero.
 *
 * @param boolean $var Variable to show debug information for.
 * @param boolean $showHtml If set to true, the method prints the debug data in a screen-friendly way.
 * @param boolean $showFrom If set to true, the method prints from where the function was called.
 * @link http://book.cakephp.org/view/458/Basic-Debugging
 */
	function debug($var = false, $showHtml = false, $showFrom = true) {
		if (Configure::read() > 0) {
			if ($showFrom) {
				$calledFrom = debug_backtrace();
				echo '<strong>' . substr(str_replace(ROOT, '', $calledFrom[0]['file']), 1) . '</strong>';
				echo ' (line <strong>' . $calledFrom[0]['line'] . '</strong>)';
			}
			echo "\n<pre class=\"cake-debug\">\n";
 
			$var = print_r($var, true);
			if ($showHtml) {
				$var = str_replace('<', '&lt;', str_replace('>', '&gt;', $var));
			}
			echo $var . "\n</pre>\n";
		}
	}