Php - Metindeki Adresleri Otomatik Linke çevirme (scripti, nasıl, nedir?)

function txt2link($text) {
$text = eregi_replace('(((f|ht){1}tp://)[-a-zA-Z0-9@:%_+.~#?&//=]+)', '\1', $text);
$text = eregi_replace('([[:space:]()[{}])(www.[-a-zA-Z0-9@:%_+.~#?&//=]+)', '\1\2', $text);
$text = eregi_replace('([_.0-9a-z-]+@([0-9a-z][0-9a-z-]+.)+[a-z]{2,3})', '\1', $text);
$regexp = "]*href=("??)([^" >]*?)\1[^>]*>(.*)</a>";
if(preg_match_all("/$regexp/siU", $text, $matches)) {
# $matches[2] = array of link addresses
# $matches[3] = array of link text - including HTML code
foreach ($matches[3] as $key=>$val) {
if ($val[50]) {
$text = str_replace(">" . $val . "<", ">" . substr($val,0,50) . "…<", $text);
}
}
}
return $text;
}

kaynak: ordan burdan