function exif_custom_get_exif_fields in EXIF Custom 7

Parameters

string $uri: A file URL.

bool $concatenate_arrays: Whether or not to concatenate values or overwrite them.

Return value

array The fields extracted.

3 calls to exif_custom_get_exif_fields()

exif_custom_new_map_form_submit in ./exif_custom.add.inc

Form submission callback for exif_custom_new_map_form().

exif_custom_process_entity in ./exif_custom.module

Process a given entity to see if it has EXIF data to be saved.

exif_display_form_file_entity_edit_alter in exif_display/exif_display.module

Implements hook_form_FORM_ID_alter() for file_entity_edit().

File

./exif_custom.module, line 300

Primary hook implementations for EXIF Custom.

Code

function exif_custom_get_exif_fields($uri, $concatenate_arrays = TRUE) {

  // Generate the absolute URL for the image just once.
  if (variable_get('exif_custom_request_method', 'legacy') == 'legacy') {
    $image_url = drupal_realpath($uri);
  }
  else {
    $image_url = file_create_url($uri);
  }
  $fields = array();

  // EXIF. Because there can be corrupt / incompatible data in the image, and
  // it doesn't support stream options, throw away any error messages.
  $exif = @exif_read_data($image_url, NULL, TRUE);
  if (isset($exif) && is_array($exif)) {
    foreach ($exif as $name => $section) {
      foreach ($section as $key => $value) {
        if ($concatenate_arrays && is_array($value)) {
          $value = implode(', ', $value);
        }
        $fields['EXIF:' . $name . ':' . $key] = exif_custom_check_plain($value);
      }
    }
  }

  // XMP.
  $fields = array_merge($fields, exif_custom_get_xmp($image_url));

  // IPTC. This function doesn't support stream options so ignore any errors.
  $size = @getimagesize($image_url, $info);
  if (isset($info) && is_array($info)) {
    foreach ($info as $block) {
      $iptc = iptcparse($block);
      if (!empty($iptc)) {

        // IPTC:2#254 can contain name=value pairs.
        if (isset($iptc['2#254']) && is_array($iptc['2#254'])) {
          $i = 0;
          foreach ($iptc['2#254'] as $iptc_field) {
            $subfields = explode('=', $iptc_field);
            $iptc['2#254.' . $subfields[0]] = $subfields[1];
          }
          unset($iptc['2#254']);
        }
        foreach ($iptc as $key => $value) {
          if ($concatenate_arrays && is_array($value)) {
            $value = implode(', ', $value);
          }
          $fields['IPTC:' . $key] = exif_custom_check_plain($value);
        }
      }
    }
  }
  return $fields;
}