Не распознается url с русскими буквами? [требует правки]

public function alphanum($value,$field)
    {
        $value = strip_tags($value);
        $field = strip_tags($field);
        $valid = preg_match('/^[\pL\pN]+$/u', $value);
        $slug = toAscii($value);
        if(!$valid or empty($slug) or strlen($value) != strlen($slug))
        {
            $this->errorBag[] = array('field' => $field,'error' => $this->getError('alphanum',array($field)));
        }
    }
public function url($value,$field)
    {
        $value = strip_tags($value);
        $field = strip_tags($field);
        if(!filter_var($value, FILTER_VALIDATE_URL));
        {
            $this->errorBag[] = array('field' => $field,'error' => $this->getError('url',array($field)));
        }
    }
public function getLink($param = array())
    {
        if (empty($param)) return app()->url($this->pattern);
        $pattern = $this->pattern;
        foreach($param as $id => $value) {
            $pattern = str_replace("{".$id."}", $value, $pattern);
        }
        return app()->url($pattern);
    }
}
function str_limit($text, $length, $ad = '...') {
    /**
     * @var $ending
     * @var $exact
     * @var $html
     */
    $ad = is_string($ad) ? array('ending' => $ad) : $ad;
    $default = array('ending' => '...', 'exact' => true, 'html' => false);
    $options = array_merge($default, $ad);
    extract($options);
    if ($html) {
        if (mb_strlen(preg_replace('/<.*?>/', '', $text)) <= $length) {
            return $text;
        }
        $totalLength = mb_strlen(strip_tags($ending));
        $openTags = array();
        $truncate = '';
        preg_match_all('/(<\/?([\w+]+)[^>]*>)?([^<>]*)/', $text, $tags, PREG_SET_ORDER);
        foreach ($tags as $tag) {
            if (!preg_match('/img|br|input|hr|area|base|basefont|col|frame|isindex|link|meta|param/s', $tag[2])) {
                if (preg_match('/<[\w]+[^>]*>/s', $tag[0])) {
                    array_unshift($openTags, $tag[2]);
                } else if (preg_match('/<\/([\w]+)[^>]*>/s', $tag[0], $closeTag)) {
                    $pos = array_search($closeTag[1], $openTags);
                    if ($pos !== false) {
                        array_splice($openTags, $pos, 1);
                    }
                }
            }
            $truncate .= $tag[1];
            $contentLength = mb_strlen(preg_replace('/&[0-9a-z]{2,8};|&#[0-9]{1,7};|&#x[0-9a-f]{1,6};/i', ' ', $tag[3]));
            if ($contentLength + $totalLength > $length) {
                $left = $length - $totalLength;
                $entitiesLength = 0;
                if (preg_match_all('/&[0-9a-z]{2,8};|&#[0-9]{1,7};|&#x[0-9a-f]{1,6};/i', $tag[3], $entities, PREG_OFFSET_CAPTURE)) {
                    foreach ($entities[0] as $entity) {
                        if ($entity[1] + 1 - $entitiesLength <= $left) {
                            $left--;
                            $entitiesLength += mb_strlen($entity[0]);
                        } else {
                            break;
                        }
                    }
                }
                $truncate .= mb_substr($tag[3], 0 , $left + $entitiesLength);
                break;
            } else {
                $truncate .= $tag[3];
                $totalLength += $contentLength;
            }
            if ($totalLength >= $length) {
                break;
            }
        }
    } else {
        if (mb_strlen($text) <= $length) {
            return $text;
        } else {
            $truncate = mb_substr($text, 0, $length - mb_strlen($ending));
        }
    }
    if (!$exact) {
        $spacepos = mb_strrpos($truncate, ' ');
        if (isset($spacepos)) {
            if ($html) {
                $bits = mb_substr($truncate, $spacepos);
                preg_match_all('/<\/([a-z]+)>/', $bits, $droppedTags, PREG_SET_ORDER);
                if (!empty($droppedTags)) {
                    foreach ($droppedTags as $closingTag) {
                        if (!in_array($closingTag[1], $openTags)) {
                            array_unshift($openTags, $closingTag[1]);
                        }
                    }
                }
            }
            $truncate = mb_substr($truncate, 0, $spacepos);
        }
    }
    $truncate .= $ending;
    if ($html) {
        foreach ($openTags as $tag) {
            $truncate .= '</'.$tag.'>';
        }
    }
    return $truncate;
}