function _linkedin_parse_fields in LinkedIn Integration 7

Same name and namespace in other branches

1. 6 linkedin.inc \_linkedin_parse_fields()

1 call to _linkedin_parse_fields()

_linkedin_get_fields in ./linkedin.inc

@todo Please document this function.

File

./linkedin.inc, line 364

Code

function _linkedin_parse_fields($contents) {
  if (!$contents) {
    return array();
  }
  if (!function_exists('xml_parser_create')) {

    //Get the XML parser of PHP - PHP must have this module for the parser to work
    if (variable_get('linkedin_debug_mode', 0) == 1) {
      drupal_set_message(t('Unable to find PHP parser. This module needs php-xml lib'), 'warning');
    }
    return array();
  }
  $parser = xml_parser_create('');
  xml_parser_set_option($parser, XML_OPTION_TARGET_ENCODING, "UTF-8");

  // http://minutillo.com/steve/weblog/2004/6/17/php-xml-and-character-encodings-a-tale-of-sadness-rage-and-data-loss
  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;
  }
  $xml_array = array();
  $parents = array();
  $opened_tags = array();
  $arr = array();
  $current =& $xml_array;

  //Reference

  //Go through the tags.
  $repeated_tag_index = array();

  //Multiple tags with same name will be turned into an array
  foreach ($xml_values as $data) {
    unset($attributes, $value);

    //Remove existing values, or there will be trouble

    //This command will extract these variables into the foreach scope

    // tag(string), type(string), level(int), attributes(array).
    extract($data);

    //We could use the array by itself, but this cooler.
    $result = array();
    $attributes_data = array();
    if (isset($value)) {
      $result = $value;
    }

    //See tag status and do the needed.
    if ($type == "open") {

      //The starting of the tag '<tag>'
      $parent[$level - 1] =& $current;
      if (!is_array($current) or !in_array($tag, array_keys($current))) {

        //Insert New tag
        $current[$tag] = $result;
        if ($attributes_data) {
          $current[$tag . '_attr'] = $attributes_data;
        }
        $repeated_tag_index[$tag . '_' . $level] = 1;
        $current =& $current[$tag];
      }
      else {

        //There was another element with the same tag name
        if (isset($current[$tag][0])) {

          //If there is a 0th element it is already an array
          $current[$tag][$repeated_tag_index[$tag . '_' . $level]] = $result;
          $repeated_tag_index[$tag . '_' . $level]++;
        }
        else {

          //This section will make the value an array if multiple tags with the same name appear together
          $current[$tag] = array(
            $current[$tag],
            $result,
          );

          //This will combine the existing item and the new item together to make an array
          $repeated_tag_index[$tag . '_' . $level] = 2;
          if (isset($current[$tag . '_attr'])) {

            //The attribute of the last(0th) tag must be moved as well
            $current[$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") {

      //Tags that ends in 1 line '<tag />'

      //See if the key is already taken.
      if (!isset($current[$tag])) {

        //New Key
        $current[$tag] = $result;
        $repeated_tag_index[$tag . '_' . $level] = 1;
        if ($attributes_data) {
          $current[$tag . '_attr'] = $attributes_data;
        }
      }
      else {

        //If taken, put all things inside a list(array)
        if (isset($current[$tag][0]) && is_array($current[$tag])) {

          //If it is already an array...

          // ...push the new element into that array.
          $current[$tag][$repeated_tag_index[$tag . '_' . $level]] = $result;
          $repeated_tag_index[$tag . '_' . $level]++;
        }
        else {

          //If it is not an array...
          $current[$tag] = array(
            $current[$tag],
            $result,
          );

          //...Make it an array using using the existing value and the new value
          $repeated_tag_index[$tag . '_' . $level] = 2;

          //0 and 1 index is already taken
        }
      }
    }
    elseif ($type == 'close') {

      //End of tag '</tag>'
      $current =& $parent[$level - 1];
    }
  }
  return $xml_array;
}