i've been following this post which tells you how to get add more meta data from your images' exif data.
I'm trying to add longitude and lat - the below nearly works and adds the metadata fields into the table _postmeta but the values are empty.
i'm not sure how to express the $file variable in add_filter('wp_read_image_metadata', 'add_geo_exif' );
the post says to use
add_filter('wp_read_image_metadata', 'add_geo_exif', , 3); but that doesn't work?
(placed in the templates' functions.php)
add_geo_exif($meta,$file,$sourceImageType) {
list(,,$sourceImageType) = getimagesize( $file );
$exif = exif_read_data( $file );
$meta['latitude'] = $exif['GPSLatitude'] ;
$meta['latitude_ref'] = trim( $exif['GPSLatitudeRef'] );
$meta['longitude'] = $exif['GPSLongitude'] ;
$meta['longitude_ref'] = trim( $exif['GPSLongitudeRef'] );
return $meta;
}
add_filter('wp_read_image_metadata', 'add_geo_exif');any help much appreciated!
