function taxonomy_xml_cached_get_contents in Taxonomy import/export via XML 6

Same name and namespace in other branches

1. 6.2 taxonomy_xml.module \taxonomy_xml_cached_get_contents()
2. 7 taxonomy_xml.module \taxonomy_xml_cached_get_contents()

A caching version of file_get_contents. Used to try and minimize remote URL lookups.

2 calls to taxonomy_xml_cached_get_contents()

taxonomy_xml_import_form_submit in ./taxonomy_xml.module

Imports the actual XML.

taxonomy_xml_import_from_url in ./taxonomy_xml.module

Import one URL. Function used by the batch operation

File

./taxonomy_xml.module, line 1067

taxonomy_xml.module This module makes it possible to import and export taxonomies as XML documents.

Code

function taxonomy_xml_cached_get_contents($url, $flush = FALSE) {

  // Note this current active URL for reference in debuging in distant places
  global $_taxonomy_xml_current_doc;
  $_taxonomy_xml_current_doc = $url;
  $cachedir = file_directory_path() . '/url_cache';
  $save_as = $cachedir . '/' . md5($url);
  if (file_exists($save_as)) {
    $content = file_get_contents($save_as);
    if ($content) {

      // Occasionally got zero-length reponses?
      return $content;
    }
  }

  // else
  file_check_directory($cachedir, FILE_CREATE_DIRECTORY);
  $contents = file_get_contents($url);
  file_put_contents($save_as, $contents);
  return $contents;
}