function search_file_attachments_extract_exif in Search File Attachments 7

Extract IPTC metadata from image.

Parameters

object $file: The file object.

Return value

string The extracted IPTC content.

1 call to search_file_attachments_extract_exif()

search_file_attachments_get_file_content in ./search_file_attachments.inc

Extract the content of the given file.

File

./search_file_attachments.inc, line 136

Heler functions, to hold the .module file clean and smart.

Code

function search_file_attachments_extract_exif($file) {
  $content = '';
  $size = getimagesize(file_create_url($file->uri), $info);
  if (isset($info['APP13'])) {
    $iptc_raw = iptcparse($info['APP13']);
    if (empty($iptc_raw)) {
      return $content;
    }
    $tagmarker = search_file_attachments_exif_tagmarker();
    $iptc = array();
    foreach ($iptc_raw as $key => $value) {

      // Add only values from the defined iptc fields.
      if (array_key_exists($key, $tagmarker)) {
        $iptc_field_value = array();
        foreach ($value as $innerkey => $innervalue) {
          $innervalue = trim($innervalue);
          if (!empty($innervalue)) {
            $iptc_field_value[] = $innervalue;
          }
        }
        if (!empty($iptc_field_value)) {
          $iptc[$tagmarker[$key]] = implode(', ', $iptc_field_value);
        }
      }
    }
    foreach ($iptc as $key => $value) {
      $content .= " <strong>{$key}:</strong> {$value}";
    }
    $content = trim($content);
  }
  return $content;
}