preg不工作unicode字

Question

我使用以下代码并尝试添加/ u但没有运气

例如，如果我用unicode语言键入amazon，它应该根据单词和链接列表将单词链接到amazon.com。这是在添加帖子时发生的。

我应该把/ u支持在这个脚本中支持unicode吗？

function bop_word_link ($bop_message, $notetype)
{
 global $vbulletin, $bop5wl_count, $vbphrase;

 //Disable for specific usergroups
 if (is_member_of($vbulletin->userinfo, explode(',', $vbulletin->options['bop5wl_groups'])))
 {
     return $bop_message;
 }

 //Disable if custom profile field is present and marked off.
 $bopfieldw = "field" . $vbulletin->options['bop5wl_field'];
 if (($vbulletin->options['bop5wl_field'] != 0) AND ($vbulletin->userinfo[$bopfieldw] == "Off"))
 {
     return $bop_message;
 }

 //Disable in specific styles
 if (in_array($vbulletin->userinfo['styleid'], explode(",", $vbulletin->options['bop5wl_styles'])))
 {
     return $bop_message;
 }

 $custreg = $vbulletin->options['bop5wl_custregex'];

   if (!$vbulletin->options['bop5wl_file'])
   {
      $bop_find_array    = explode ("\r\n", $vbulletin->options['bop5wl_words']);
      $bop_replace_array = explode ("\r\n", $vbulletin->options['bop5wl_links']);
   }
   else
   {
     $bopfile = gzopen($vbulletin->options['bop5wl_file'], "r");
     if ($bopfile !== FALSE)
     {
        $row = 0;
        while (($bopdata = fgetcsv($bopfile, 2000, ",")) !== FALSE)
        {
           $bopnum = count($bopdata);

           $bop_find_array[$row]     = $bopdata[0];
           $bop_replace_array[$row]  = $bopdata[1];
           $bop_target_array[$row]   = $bopdata[2];
           $bop_nofollow_array[$row] = $bopdata[3];
           $row++;
        }
        gzclose($bopfile);
     }
     else
     {
       echo "Word Links Error - Data File Not Found!<br />Administrator should disable Word Links plugin or verify data file exists.<br />\n";
       die();
     }
   }

   $bop_find_array = array_filter($bop_find_array);
   $bop_find_array = array_values($bop_find_array);

   $bop_replace_array = array_filter($bop_replace_array);
   $bop_replace_array = array_values($bop_replace_array);

   if ($vbulletin->options['bop5wl_newwin'])
      $boptarg = ' target="_blank" ';
   else
      $boptarg = ' target="_self" ';

   if ($vbulletin->options['bop5wl_nofollow'])
      $bopnofollow = ' rel="nofollow" ';
   else
      $bopnofollow = '';

   if ($vbulletin->options['bop5wl_css'])
   {
      $bopspan1 = '<span class="boplink">';
      $bopspan2 = '</span>';
   }
   else
   {
      $bopspan1 = '';
      $bopspan2 = '';
   }

   $bopi = 0;
   foreach ($bop_replace_array AS &$boplink)
   {
       if ($bop_target_array[$bopi] == NULL)
          $bop_target_array[$bopi] = $boptarg;
       else 
          $bop_target_array[$bopi] = ' target="'.trim($bop_target_array[$bopi]).'" ';

       if ($bop_nofollow_array[$bopi] == NULL)
          $bop_nofollow_array[$bopi] = $bopnofollow;
       else
           $bop_nofollow_array[$bopi] = ' rel="'.trim($bop_nofollow_array[$bopi]).'" ';

       $bop_find_array[$bopi] = trim ($bop_find_array[$bopi]);
       $boplink = $bopspan1 . '<a href="'.trim($boplink).'"' . $bop_target_array[$bopi] . $bop_nofollow_array[$bopi] . ' >$1</a>' . $bopspan2;
       $bopi++;
   }

    if ($vbulletin->options['bop5wl_whole'])
       $bopwd = "\b";
    else
       $bopwd = "";

    if ($vbulletin->options['bop5wl_case'])
       $bopcase = "";
    else
       $bopcase = "i";

    foreach ($bop_find_array AS &$bopfind)
    {
         $bopfind = preg_quote (htmlspecialchars($bopfind));
         $bopfind = '~'.$bopwd.'('.$bopfind.')'.$bopwd.'(?![^<]*(</a>|" />|width="\d+"|target="_blank"|'.$custreg.'width=\'\d+\'|follow">|rel="thickbox">|onclick="[\w .()]+"))~'.$bopcase;
         // Help with the above regex was provided by:
         // http://stackoverflow.com/questions/6009415/
    }
   $boplim = $vbulletin->options['bop5wl_max'];

   if ($boplim < 1)
       $boplim = -1;
   $bopcount = 0;


   if (($vbulletin->options['bop5wl_pagemax'] == 0) OR ($bop5wl_count < $vbulletin->options['bop5wl_pagemax']))
   {
      $bop_message = preg_replace ($bop_find_array, $bop_replace_array, $bop_message, $boplim, $bopcount);
      $bop5wl_count += $bopcount;
   }

  if ($bopcount > 0 AND $vbulletin->options['bop5wl_note'])
  {
     if ($notetype == "post")
       $bop_message .= construct_phrase($vbphrase['bop5_wordlinks_note'], $bopcount);
     elseif ($notetype == "article")
       $bop_message .= construct_phrase($vbphrase['bop5_wordlinks_note_art'], $bopcount);
     elseif ($notetype == "blog")
       $bop_message .= construct_phrase($vbphrase['bop5_wordlinks_note_blog'], $bopcount);
     elseif ($notetype == "comment")
       $bop_message .= construct_phrase($vbphrase['bop5_wordlinks_note_com'], $bopcount);
     else // ($notetype == "message")
       $bop_message .= construct_phrase($vbphrase['bop5_wordlinks_note_mess'], $bopcount);
  }

  return $bop_message;
}