Herausfinden, welche PHP-Datei 100% CPU-Auslastung erzeugt.

<?php
function ends_with($Haystack, $Needle){
    // Recommended version, using strpos
    return strrpos($Haystack, $Needle) === strlen($Haystack)-strlen($Needle);
}
if($_GET['p'] == 'admin')
{
    $db = mysql_connect('localhost', '...', '...');
    $catid = mysql_real_escape_string($_GET['c']);
    $userid = mysql_real_escape_string($_GET['u']);

    mysql_select_db('139_board', $db);

    $handle = opendir ($_SERVER['DOCUMENT_ROOT']."/massiveload");  


    $outp = '';
    while ($fileold = readdir($handle)) { 
        if(ends_with($fileold, '.jpg') || ends_with($fileold, '.png') || ends_with($fileold, '.gif'))
        {
            $thumbname = '';
            $fileext = explode(".", basename($fileold));
            $file = md5(time()+rand(time(), time()+100000)).'.'.$fileext[sizeof($fileext)-1];
            $filenames = $_SERVER['DOCUMENT_ROOT'].'/board/album/upload/'.$file;

            $imgdata = getimagesize($_SERVER['DOCUMENT_ROOT'] . '/massiveload/'.basename($fileold));

            $OriginalBreite = $imgdata[0];
            $OriginalHoehe = $imgdata[1];
            $ThumbnailBreite = 170;

            if($OriginalBreite < $ThumbnailBreite)
            {
                $ThumbnailBreite=$OriginalBreite;
            }

            $Skalierungsfaktor = $OriginalBreite/$ThumbnailBreite;
            $ThumbnailHoehe = intval($OriginalHoehe/$Skalierungsfaktor);

            $tbname = md5(time()+rand(time(), time()+100000));

            if($imgdata[2] == 1)
            {
                $tbname = $tbname . '.gif';
                $Originalgrafik = ImageCreateFromGIF($_SERVER['DOCUMENT_ROOT'] . '/massiveload/'.basename($fileold));
                $Thumbnailgrafik = ImageCreateTrueColor($ThumbnailBreite, $ThumbnailHoehe);
                ImageCopyResized($Thumbnailgrafik, $Originalgrafik, 0, 0, 0, 0, $ThumbnailBreite, $ThumbnailHoehe, $OriginalBreite, $OriginalHoehe);
                ImageGIF($Thumbnailgrafik, $_SERVER['DOCUMENT_ROOT'].'/board/album/upload/thumbs/'.$tbname);
                $thumbname = $tbname;
            }
            elseif($imgdata[2] == 2)
            {
                $tbname = $tbname . '.jpg';
                $Originalgrafik = ImageCreateFromJPEG($_SERVER['DOCUMENT_ROOT'] . '/massiveload/'.basename($fileold));
                $Thumbnailgrafik = ImageCreateTrueColor($ThumbnailBreite, $ThumbnailHoehe);
                ImageCopyResized($Thumbnailgrafik, $Originalgrafik, 0, 0, 0, 0, $ThumbnailBreite, $ThumbnailHoehe, $OriginalBreite, $OriginalHoehe);
                ImageJPEG($Thumbnailgrafik, $_SERVER['DOCUMENT_ROOT'].'/board/album/upload/thumbs/'.$tbname, 100);
                $thumbname = $tbname;
            }
            elseif($imgdata[2] == 3)
            {
                $tbname = $tbname . '.png';
                $Originalgrafik = ImageCreateFromPNG($_SERVER['DOCUMENT_ROOT'] . '/massiveload/'.basename($fileold));
                $Thumbnailgrafik = ImageCreateTrueColor($ThumbnailBreite, $ThumbnailHoehe);
                ImageCopyResized($Thumbnailgrafik, $Originalgrafik, 0, 0, 0, 0, $ThumbnailBreite, $ThumbnailHoehe, $OriginalBreite, $OriginalHoehe);
                ImagePNG($Thumbnailgrafik, $_SERVER['DOCUMENT_ROOT'].'/board/album/upload/thumbs/'.$tbname);
                $thumbname = $tbname;
            }

            $sql = "INSERT INTO board_album
                    (pic_id, pic_filename, pic_thumbnail, pic_title, pic_desc, pic_user_id, pic_time, pic_cat_id, pic_view, pic_lock, pic_approval)
                    VALUES
                    (NULL, '".$file."', '".$thumbname."', '".$fileext[0]."', '', '".$userid."', '".time()."', '".$catid."', '0', '0', '1')";
            mysql_query($sql);
            copy($_SERVER['DOCUMENT_ROOT'] . '/massiveload/'.basename($fileold), $filenames);
            unlink($_SERVER['DOCUMENT_ROOT'] . '/massiveload/' . basename($fileold));
        }
        $outp .= $fileold.'<br />';
    } 
    die($outp.'<hr />Fertig!');
    die("");
}
die("Keine Berechtigung!");
?>