"Text Smilies" durch Bilder ersetzen  -  Die komplette Klasse

<?php
 
/**
* Zeichenketten durch Smilies ersetzen
* @author Christian Blechert
* @since Januar 2009
*/
 
class smiley_parse {
 
   private $smiley_path;
   private $smiley_array;
 
/**
 * Construct
 * @param   String   $path   Pfad zum Smilies Ordner
 */
   function __construct($path) {
 
      if(file_exists(ABS_PATH.$path)) {
         $this->smiley_path = $path;
      } else {
         echo "Smiley Path doesnt exists!";
      }
      if(!$this->parse_xml()) echo "XML File \\"smileys.xml\\" doesnt exists!";
   }
 
/**
 * Wandelt die XML File in ein Array um
 * @return   bool   true   XML Datei erfolgreich geparst
 * @return   bool   false  XML Datei existiert nicht!
 */
   function parse_xml() {
      if(!file_exists(ABS_PATH.$this->smiley_path."/smileys.xml")) return false;
      $array = $this->xml2array(ABS_PATH.$this->smiley_path."/smileys.xml");
      for($i=0; $i<count($array['smileys']['smiley']); $i++) {
         if(file_exists(ABS_PATH.$this->smiley_path."/".$array['smileys']['smiley'][$i]['file'])) {
            $this->smiley_array[$array['smileys']['smiley'][$i]['string']] = $array['smileys']['smiley'][$i]['file'];
         }
      }
      return true;
   }
 
/**
 * Wandelt den uebergebenen Text um
 * @param    String   $text   Der Text
 * @return   String
 */
   function parse_text($text) {
      if(!is_array($this->smiley_array)) return $text;
 
      foreach($this->smiley_array as $field => $value) {
         $text = str_replace($field, "<img src='".REL_PATH.$this->smiley_path."/".$value."' alt='".$field."'>", $text);
      }
      return $text;
   }
 
/**
 * Wandelt ein XML File in ein Array um
 * (Gefunden auf: http://de3.php.net/manual/en/function.xml-parse.php)
 *
 * @param   String   $url              Absoluter Prad zur File
 * @param   int      $get_attributes   Attribute mitnehmen?
 * @param   String   $priority         ?
 */
      function xml2array($url, $get_attributes = 1, $priority = 'tag') {
         $contents = "";
         if (!function_exists('xml_parser_create'))
         {
            return array ();
         }
         $parser = xml_parser_create('');
         if (!($fp = @ fopen($url, 'rb')))
         {
            return array ();
         }
         while (!feof($fp))
         {
            $contents .= fread($fp, 8192);
         }
         fclose($fp);
         xml_parser_set_option($parser, XML_OPTION_TARGET_ENCODING, "UTF-8");
         xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, 0);
         xml_parser_set_option($parser, XML_OPTION_SKIP_WHITE, 1);
         xml_parse_into_struct($parser, trim($contents), $xml_values);
         xml_parser_free($parser);
         if (!$xml_values)
            return; //Hmm...
         $xml_array = array ();
         $parents = array ();
         $opened_tags = array ();
         $arr = array ();
         $current = & $xml_array;
         $repeated_tag_index = array ();
         foreach ($xml_values as $data)
         {
            unset ($attributes, $value);
            extract($data);
            $result = array ();
            $attributes_data = array ();
            if (isset ($value))
            {
               if ($priority == 'tag')
                  $result = $value;
               else
                  $result['value'] = $value;
            }
            if (isset ($attributes) and $get_attributes)
            {
               foreach ($attributes as $attr => $val)
               {
                  if ($priority == 'tag')
                     $attributes_data[$attr] = $val;
                  else
                     $result['attr'][$attr] = $val; //Set all the attributes in a array called 'attr'
               }
            }
            if ($type == "open")
            {
               $parent[$level -1] = & $current;
               if (!is_array($current) or (!in_array($tag, array_keys($current))))
               {
                  $current[$tag] = $result;
                  if ($attributes_data)
                     $current[$tag . '_attr'] = $attributes_data;
                  $repeated_tag_index[$tag . '_' . $level] = 1;
                  $current = & $current[$tag];
               }
               else
               {
                  if (isset ($current[$tag][0]))
                  {
                     $current[$tag][$repeated_tag_index[$tag . '_' . $level]] = $result;
                     $repeated_tag_index[$tag . '_' . $level]++;
                  }
                  else
                  {
                     $current[$tag] = array (
                        $current[$tag],
                        $result
                     );
                     $repeated_tag_index[$tag . '_' . $level] = 2;
                     if (isset ($current[$tag . '_attr']))
                     {
                        $current[$tag]['0_attr'] = $current[$tag . '_attr'];
                        unset ($current[$tag . '_attr']);
                     }
                  }
                  $last_item_index = $repeated_tag_index[$tag . '_' . $level] - 1;
                  $current = & $current[$tag][$last_item_index];
               }
            }
            elseif ($type == "complete")
            {
               if (!isset ($current[$tag]))
               {
                  $current[$tag] = $result;
                  $repeated_tag_index[$tag . '_' . $level] = 1;
                  if ($priority == 'tag' and $attributes_data)
                     $current[$tag . '_attr'] = $attributes_data;
               }
               else
               {
                  if (isset ($current[$tag][0]) and is_array($current[$tag]))
                  {
                     $current[$tag][$repeated_tag_index[$tag . '_' . $level]] = $result;
                     if ($priority == 'tag' and $get_attributes and $attributes_data)
                     {
                           $current[$tag][$repeated_tag_index[$tag . '_' . $level] . '_attr'] = $attributes_data;
                     }
                     $repeated_tag_index[$tag . '_' . $level]++;
                  }
                  else
                  {
                     $current[$tag] = array (
                        $current[$tag],
                        $result
                     );
                     $repeated_tag_index[$tag . '_' . $level] = 1;
                     if ($priority == 'tag' and $get_attributes)
                     {
                        if (isset ($current[$tag . '_attr']))
                        {
                            $current[$tag]['0_attr'] = $current[$tag . '_attr'];
                            unset ($current[$tag . '_attr']);
                        }
                        if ($attributes_data)
                        {
                            $current[$tag][$repeated_tag_index[$tag . '_' . $level] . '_attr'] = $attributes_data;
                        }
                    }
                    $repeated_tag_index[$tag . '_' . $level]++; //0 and 1 index is already taken
                  }
               }
            }
            elseif ($type == 'close')
            {
               $current = & $parent[$level -1];
            }
         }
         return ($xml_array);
      }
 
 
}
 
 
?>