preg.php

//$message herhangi bir string olmak uzere hashtagler, mentionlar,youtube linkleri ve normal linkler icin preg.
$parsedMessage =
            preg_replace_callback_array(
                [
                    '/(?i)\b((?:https?:\/\/|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}\/)(?:[^\s()<>]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\))+(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:\'".,<>?«»“”‘’]))/'
                    =>function ($m) {
                        $matches=[];
                        $match_bool=preg_match('/\s*[a-zA-Z\/\/:\.]*youtu(be.com\/watch\?v=|.be\/)([a-zA-Z0-9\-_]+)([a-zA-Z0-9\/\*\-\_\?\&\;\%\=\.]*)/i',$m[0],$matches);
                        if($match_bool)
                        {
                            return  '<iframe src="//www.youtube.com/embed/'.$matches[2].'" type="text/html" width="480" height="270" allowfullscreen></iframe>';
                        }
                        else
                        {
                            return '<a href="'.$m[1].'" target="_blank">'.$m[1].'</a>';
                        }
                    },
                    '/(^|[^a-z0-9_])@([a-z0-9_]+)/i'
                    =>function ($m) {
                        if (!User::where('username', $m[2])->exists())
                        {
                            return $m[1].'<a href="/'.$m[2].'">@'.$m[2].'</a>';
                        }
                    },
                    '/(^|[^a-z0-9_])#([a-z0-9şŞıİçÇöÖüÜĞğ_]+)/i'
                    =>function ($m) {return $m[1].'<a href="/hashtag/'.$m[2].'">#'.$m[2].'</a>';}
                ],
                $message);