Function debug in PHP

debug.php

<?php

function debug($var, $return = false){
	$trace = debug_backtrace();
	foreach ($trace as $t) {
		if($t['function'] == __FUNCTION__){
			$file = $t['file'];
			$line = $t['line'];
			break;
		}
	}

	$out  = '<div class="debug">';
	$out .= '<div class="file"><strong>'.$file.'</strong> (Line <strong>'.$line.'</strong>)</div>';
	$out .= '<pre class="code">';
	$out .= print_r($var, true);
	$out .= '</pre>';
	$out .= '</div>';

	if($return){
		return $out;
	}else{
		echo $out;
	}
}

?>