Content Based Sef Link Fonctions

seflink.php

<?php    
/*--------------------- SEF Link ----------------- START */

    // Conversation title to better link string
    public function sefLink($str){
        $str = $this->parentSefLink($str);
        if ($str !== mb_convert_encoding(mb_convert_encoding($str, 'UTF-32', 'UTF-8'), 'UTF-8', 'UTF-32'))
            $str = mb_convert_encoding($str, 'UTF-8', mb_detect_encoding($str));
        $str = htmlentities($str, ENT_NOQUOTES, 'UTF-8');
        $str = preg_replace('`&([a-z]{1,2})(acute|uml|circ|grave|ring|cedil|slash|tilde|caron|lig);`i', '1', $str);
        $str = html_entity_decode($str, ENT_NOQUOTES, 'UTF-8');
        $str = preg_replace(array('`[^a-z0-9]`i', '`[-]+`'), '-', $str);
        $str = strtolower(trim($str, '-'));
        return $str;
    }

    // helper function comes first
    // for turkish characters replacing
    public function parentSefLink($string)
    {
        $turkce=array("ş", "Ş", "ı", "ü", "Ü", "ö", "Ö", "ç", "Ç", "ğ", "Ğ", "İ", "I");
        $duzgun=array("s", "s", "i", "u", "u", "o", "o", "c", "c", "g", "g", "i", "i");
        $string = str_replace($turkce, $duzgun, $string);
        $string = trim($string);
        $string = html_entity_decode($string);
        $string = strip_tags($string);
        $string = strtolower($string);
        $string = preg_replace('~[^ a-z0-9_.]~', ' ', $string);
        $string = preg_replace('~ ~', '-', $string);
        $string = preg_replace('~-+~', '-', $string);

        return $string;
    }

    /*--------------------- SEF Link ----------------- END */

usage.txt

TR-
Call: ..sefLink("pijamalı hasta yağız şoföre çabucak güvendi !'^+%&/()=?_->£#${[]}\|;:><");
Output: pijamali-hasta-yagiz-sofore-cabucak-guvendi