php simple stacktrace

gistfile1.php

function stacktrace($linesep="<br>") {
    $trace = debug_backtrace();
    array_shift($trace); // stacktrace entfernen
    $lines = array();
    foreach($trace as $call) {
        $lines[] = $call['file'] . " (" . $call['function'] . ")";
    }
    return join($linesep, $lines) . $linesep;
}