public function Exif::readExifTags in Exif 6

Read the Information from a picture according to the fields specified in CCK

Parameters

$file:

$arTagNames:

Return value

array

File

./exif.class.php, line 59

Class

Exif

@author Raphael Schär This is a helper class to handle the whole data processing of exif

Code

public function readExifTags($file, $arTagNames = array()) {
  if (!file_exists($file)) {
    return array();
  }
  $ar_supported_types = array(
    'jpg',
    'jpeg',
  );
  if (!in_array(strtolower($this
    ->getFileType($file)), $ar_supported_types)) {
    return array();
  }
  $exif = exif_read_data($file, 0);
  $arSmallExif = array();
  $arSmallExif = array_change_key_case((array) $exif, CASE_LOWER);
  $arSmallExif['computed'] = array_change_key_case((array) $arSmallExif['computed'], CASE_LOWER);

  //why this function isn't recursive is beyond me
  $arSmallExif['thumbnail'] = array_change_key_case((array) $arSmallExif['thumbnail'], CASE_LOWER);
  $arSmallExif['comment'] = array_change_key_case((array) $arSmallExif['comment'], CASE_LOWER);
  $info = array();
  foreach ($arTagNames as $tagName) {
    if ($tagName['section'] != 'iptc') {
      if (!empty($arSmallExif[$tagName['tag']])) {
        $info[$tagName['section'] . '_' . $tagName['tag']] = utf8_encode($arSmallExif[$tagName['tag']]);
      }
      elseif (!empty($arSmallExif[$tagName['section']][$tagName['tag']])) {
        $info[$tagName['section'] . '_' . $tagName['tag']] = utf8_encode($arSmallExif[$tagName['section']][$tagName['tag']]);
      }
    }
  }
  return $info;
}