PHP extract GPS EXIF data

Question

I would like to extract the GPS EXIF tag from pictures using php. I\'m using the exif_read_data() that returns a array of all tags + data :

GPS.         


        

Answer 1

In case you need a function to read Coordinates from Imagick Exif here we go, I hope it saves you time. Tested under PHP 7.

function create_gps_imagick($coordinate, $hemi) {

  $exifCoord = explode(', ', $coordinate);

  $degrees = count($exifCoord) > 0 ? gps2Num($exifCoord[0]) : 0;
  $minutes = count($exifCoord) > 1 ? gps2Num($exifCoord[1]) : 0;
  $seconds = count($exifCoord) > 2 ? gps2Num($exifCoord[2]) : 0;

  $flip = ($hemi == 'W' or $hemi == 'S') ? -1 : 1;

  return $flip * ($degrees + $minutes / 60 + $seconds / 3600);

}

function gps2Num($coordPart) {

    $parts = explode('/', $coordPart);

    if (count($parts) <= 0)
        return 0;

    if (count($parts) == 1)
        return $parts[0];

    return floatval($parts[0]) / floatval($parts[1]);
}