debug_backtrace() with files and lines only

backtrace.php

<?php

function backtrace() {
	$keys = array('file','line');
	$target = array();
	foreach(debug_backtrace() as $key => $s) {
		/*if ($key == 0) {
			continue;
		}*/
		
		foreach($s as $inner_key => $inner_s) {
			if (in_array($inner_key,$keys))
				$target[$key][$inner_key] = $inner_s;
		}
	}
	
	return $target;
}