preg_replace mit function nutzen ?

function linkShorter($link)
{
    $link_max_len = 25;




    if(strlen($link)>$link_max_len){
        if(($url=parse_url($link))and($host=$url['host'])and($path=$url['path'])){
            $linkname = $host;
            if(($rest=$link_max_len-(strlen($host)+4)) > 10){
                $linkname .= '/...'.substr($path,-$rest);
            }
            return $linkname;
        }else{
            return substr($link,($link_max_len-3)).'...';
        }
    }
    return $link;
}




$text = 'test text bla http://www.php.net/manual/de/function.preg-replace.php und so und so';
# linkShorter() test
echo linkShorter('http://php.net/manual/de/function.preg-replace.php');







# was funktioniert:
$search = "/([\w]+:\/\/[\w-?&;#~=\.\/\@]+[\w\/])/i";
$replace = '<a class="mb_widget_feed_link" href="'."$1".'" target="_blank">'."$1".'</a>';
$text = preg_replace($search, $replace, $text);




echo '<pre>'; print_r($text); echo '</pre>';







# was ich versuche:
$search = "/([\w]+:\/\/[\w-?&;#~=\.\/\@]+[\w\/])/i";
$replace = '<a class="mb_widget_feed_link" href="'."$1".'" target="_blank">'.linkShorter("$1").'</a>';
$text = preg_replace($search, $replace, $text);




echo '<pre>'; print_r($text); echo '</pre>';

$text = '
email.soundso@gmail.com
https://www.youtube.com/watch?v=ZswRpZ0Y_Js
www.i.imgur.com/0ttt4qp.png
http://www.youtube.com/watch?v=umfsZ_qsISQ
http://battlelog.battlefield.com/bf3/soldier/cottton/assignments/351412248/cem_ea_id/
http://www.php-einfach.de/tuts_php_links.php
https://metabans.net/private.php?do=showpm&pmid=1794
http://www.html-seminar.de/html-css-php-forum/board40-themenbereiche/board18-php/4089-preg-replace-mit-function-nutzen/#post28655
http://www.woltlab.com/forum/burning-board-3-1-volcano/fragen-zu-technischen-problemen/207198-fatal-error-allowed-memory-size/?#post1219541
http://3341808.fls.doubleclick.net/activityi;src=3341808;type=fy12b248;cat=ea_fy112;ord=56483662.78471018?&_dc_ck=try
http://anticheatinc.com/rtstarena/pending/3381424c84a42420c88b3943ae02e16f_0.png%20
';




function linker($text,$url_class=false,$url_target='_self',$linkShorter=false) # linker() credits: "Andavos" -> http://www.php-einfach.de/tuts_php_links.php # edited by [i-stats.net]cottton
{
    //Aus http://url wird [URL]http://url[/URL]
    $urlsuch[]="/([^]_a-z0-9-=\"'\/])((https?|ftp):\/\/|www\.)([^ \r\n\(\)\^\$!`\"'\|\[\]\{\}<>]*)/si";
    $urlsuch[]="/^((https?|ftp):\/\/|www\.)([^ \r\n\(\)\^\$!`\"'\|\[\]\{\}<>]*)/si";




    $urlreplace[]="\\1[URL]\\2\\4[/URL]";
    $urlreplace[]="[URL]\\1\\3[/URL]";




    //Aus klaus@mustermann.de wird [EMAIL]klaus@mustermann.de [/EMAIL]
    $emailsuch[]="/([\s])([_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)*(\.[a-zA-Z]{2,}))/si";
    $emailsuch[]="/^([_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)*(\.[a-zA-Z]{2,}))/si";




    $emailreplace[]="\\1[EMAIL]\\2[/EMAIL]";
    $emailreplace[]="[EMAIL]\\0[/EMAIL]";




    $text = preg_replace($urlsuch, $urlreplace, $text);
    if(strpos($text,"@")){
        $text = preg_replace($emailsuch, $emailreplace, $text);
    }




    $class = "";
    if($url_class){
        $class = " class=\"".$url_class."\"";
    }
    if(!$linkShorter){
        $replace = "<a".$class." href=\"%REFER_HREF%\" target=\"".$url_target."\">%REFER_NAME%</a>";
        $eval = '';
    }elseif(is_numeric($linkShorter)){
        $replace = "'<a".$class." href=\"%REFER_HREF%\" target=\"".$url_target."\">'.linkShorter('%REFER_NAME%',".$linkShorter.").'</a>'";
        $eval = 'e';
    }else{
        die('<b>Error:</b> '.htmlspecialchars(__FUNCTION__).'() expects parameter 4 to be numeric or blool, "'.htmlspecialchars($linkShorter).'" given in '.htmlspecialchars(__FILE__).' on line '.htmlspecialchars(__LINE__));
    }




    //Die URL's werden zu Links
    $text = preg_replace("/\[URL\]www.(.*?)\[\/URL\]/si".$eval."", str_replace('%REFER_NAME%',"$1",str_replace('%REFER_HREF%',"http://www.$1",$replace)), $text);




    $text = preg_replace("/\[URL\](.*?)\[\/URL\]/si".$eval."", str_replace('%REFER_NAME%',"$1",str_replace('%REFER_HREF%',"$1",$replace)), $text);




    $text = preg_replace("/\[URL=www.(.*?)\](.*?)\[\/URL\]/si".$eval."", str_replace('%REFER_NAME%',"$2",str_replace('%REFER_HREF%',"http://www.$1",$replace)), $text);




    $text = preg_replace("/\[URL=(.*?)\](.*?)\[\/URL\]/si".$eval."", str_replace('%REFER_NAME%',"$2",str_replace('%REFER_HREF%',"$1",$replace)), $text);




    //E-Mail Adressen werden zu links
    $text = preg_replace("/\[EMAIL\](.*?)\[\/EMAIL\]/si", "<a href=\"mailto:\\1\">\\1</a>", $text);




    $text = preg_replace("/\[EMAIL=(.*?)\](.*?)\[\/EMAIL\]/si", "<a href=\"mailto:\\1\">\\2</a>", $text);




    //[IMG]bild.jpg[/IMG] wird als Bild angezeigt
    #$text = preg_replace("/\[IMG\](.*?)\[\/IMG\]/si", "<img src=\"\\1\" border=\"0\">", $text);




    return $text;
}




function linkShorter($link,$link_max_len=40,$glue='/...',$glue_query='...')         #echo "<pre>";print_r($url);echo "</pre>";
{
    $link = str_replace(array('https://','http://','www.'),'',$link);
    $just_cut = substr($link,0,-(strlen($link)-($link_max_len-strlen($glue_query)))).$glue_query;
    if($url=parse_url($link)){
        $host = false;
        if(isset($url['host'])){
            $host = $url['host'];
        }
        $path = false;
        if(isset($url['path'])){
            $path = $url['path'];
        }
        $query = false;
        if(isset($url['query'])){
            $query = $url['query'];
        }
    }




    if(strlen($link)>$link_max_len){
        if($host and $path){
            if(strlen($host) > $link_max_len){
                return $just_cut;
            }elseif(strlen($host.$path) > $link_max_len){
                if(($minus=$link_max_len-(strlen($host)+strlen($glue))) < (strlen($glue)*1.5)){
                    return $just_cut;
                }else{
                    return $host.$glue.substr($path,-$minus);
                }
            }elseif(strlen($host.$path.$query) > $link_max_len){
                if(($minus=$link_max_len-(strlen($host)+strlen($path)+strlen($glue_query))) < (strlen($glue_query)*1.5)){
                    return $host.$path.$glue_query;
                }else{
                    return $host.$path.$glue_query.substr($query,-$minus);
                }
            }else{
                return $host.$path.$query;
            }
        }else{
            return $just_cut;
        }
    }
    return $link;
}










echo '<h1>Test mit linker() und linkShorter() (link länge: 50)</h1>'.nl2br(linker($text,'class_name','_blank',50));
echo '<hr /><h1>Test mit linker() und linkShorter() (link länge: 25)</h1>'.nl2br(linker($text,'class_name','_blank',25));
echo '<hr /><h1>Test nur mit linker()</h1>'.nl2br(linker($text,'class_name','_blank',0));