/** * Gets the data set name. * * @param array $headers * Header information from the data file. * * @return string * The data set name */ function fiftyone_degrees_get_dataset_name($headers) { $name = fiftyone_degrees_read_ascii($headers['info']['data_set_name_offset'], $headers); return $name; }
/** * Returns an array with properties in the data set and their values. * * @return array * Properties and their values. */ function fiftyone_degrees_get_meta_data() { fiftyone_degrees_set_file_handle(); $headers = fiftyone_degrees_get_headers(); $name = fiftyone_degrees_get_dataset_name($headers); $cache_file_name = dirname(__FILE__) . "/51Degrees_meta_data_cache_{$headers['info']['published_year']}_{$headers['info']['published_month']}_{$headers['info']['published_day']}_{$name}.cache"; $cache_file_name = str_replace("\\", "/", $cache_file_name); if (file_exists($cache_file_name)) { $cache = file_get_contents($cache_file_name); $meta_data = unserialize($cache); if ($meta_data !== FALSE) { return $meta_data; } } $meta_data = array(); $meta_data['Date'] = "{$headers['info']['published_month']}/{$headers['info']['published_day']}/{$headers['info']['published_year']}"; $meta_data['DatasetName'] = fiftyone_degrees_get_dataset_name($headers); $property_names = array(); $value_indexes = array(); for ($i = 0; $i < $headers['property_count']; $i++) { $property = fiftyone_degrees_read_property($i, $headers); $meta_data[$property['name']] = array(); $meta_data[$property['name']]['Description'] = fiftyone_degrees_read_ascii($property['description_offset'], $headers); $meta_data[$property['name']]['List'] = $property['list']; if ($property['url_offset'] != -1) { $meta_data[$property['name']]['Url'] = fiftyone_degrees_read_ascii($property['url_offset'], $headers); } $property_names[$i] = $property['name']; $meta_data[$property['name']]['Values'] = array(); $value_indexes[] = array('first_value_index' => $property['first_value_index'], 'last_value_index' => $property['last_value_index']); switch ($property['value_type_id']) { case 0: // string // string default: $value_type = 'string'; break; case 1: // int $value_type = 'integer'; break; case 2: // double $value_type = 'double'; break; case 3: // bool $value_type = 'boolean'; break; case 4: // javaScript $value_type = 'javascript'; break; } $meta_data[$property['name']]['ValueType'] = $value_type; } foreach ($value_indexes as $value_index) { for ($i = $value_index['first_value_index']; $i <= $value_index['last_value_index']; $i++) { $property_value = fiftyone_degrees_read_property_value($i, $headers); $name = $property_names[$property_value['property_index']]; $meta_data[$name]['Values'][$property_value['value']] = array(); if ($property_value['description_offset'] > 0) { $meta_data[$name]['Values'][$property_value['value']]['Description'] = fiftyone_degrees_read_ascii($property_value['description_offset'], $headers); } if ($property_value['url_offset'] > 0) { $meta_data[$name]['Values'][$property_value['value']]['Url'] = fiftyone_degrees_read_ascii($property_value['url_offset'], $headers); } } } $handle = fopen($cache_file_name, "w"); if ($handle !== FALSE) { $dir = new DirectoryIterator(dirname(__FILE__)); foreach ($dir as $fileinfo) { if ($fileinfo->isFile()) { $file_extension = pathinfo($fileinfo->getFilename(), PATHINFO_EXTENSION); if ($file_extension === "cache" && strpos($fileinfo->getFilename(), '51Degrees_meta_data_cache_') === 0) { $path = $fileinfo->getRealPath(); @unlink($path); } } } $cache = serialize($meta_data); fwrite($handle, $cache); } return $meta_data; }