PHP函数中的编码问题

Question

I am trying to build an URL from a string, that I get with webcrawler. I have managed to create a crawler, but I can't make an URL string... I have managed to find out that PHP function preg_match_all messes up my result. This is what I have:

preg_match_all('/"([^"]+)"/', $str, $matches); 
foreach ($matches[1] as $value) {
     $termsArray[] = $this->createUrl($value);
}

The preg_match_all function returns the correct string but, I guess, the encoding is wrong... And the createUrl function looks lite this:

private function createLikitUrl($term)
    {
    $ltSymbolsArray = array(
              'a1' => 'ą',
              'c2' => 'č',
              'e1' => 'ę',
              'e2' => 'ė',
              'i1' => 'į',
              's2' => 'š',
              'u1' => 'ų',
              'u2' => 'ū',
              'z2' => 'ž',
              '_' => ' '
          );
          $chars = preg_split("//u", $term, -1, PREG_SPLIT_NO_EMPTY);
          $urlStr = '';
          foreach ($chars as $value) {
            foreach ($ltSymbolsArray as $key => $replacement) {
              if ($value == $replacement) {
                $value = $key;
              }
            }
            $urlStr .= $value;
          }
}

The problem is that preg_split returns the same string that I pass as $term variable when preg_match_all is used with a string that has multibyte symbols. If I pass a string to the createUrl function without using preg_match_all, then it works perfectly. My guess is that I am missing unicode modifier in preg_match_all pattern, but I have hard time on writting regular expressions.

Anny help would be apreciated.

Answer 1

Not sure I understand your request, but I tried your script and it works pretty fine, except that you need to add a return $urlStr; at the end of the function.
And it has to be renamed createUrl .

Answer 2

I finnaly found a solution. If anyone will come across to this problem, this should help. As I thought, there was a problem with encoding. I just added one line of code before the preg_match_all that solved the problem:

$matches = mb_convert_encoding($str, 'UTF-8', 'ISO-8859-13');

Cheers! :)