A very lightweight php backtrace

php

<?php
$debug_backtrace = debug_backtrace();
$output = [];
foreach ($debug_backtrace as $debug) {
	if (isset($debug['class'])) {
		$o = $debug['class'];
	}
	
	$o .= '::' . $debug['function'];
	
	if( isset( $debug['file'] ) ){
		$o .= ' (' . $debug['file'] . ':' . $debug['line'] . ')';
	}
	
	$output[] = $o;
}
var_dump($output);