Filters the attachment thumbnail file path.

Parameters

$thumbfilestring

File path to the attachment thumbnail.

$post_idint

Attachment ID.

More Information

The wp_get_attachment_thumb_file() function fetches the path to the thumbnail file of a given attachment. Just before the function returns the path, the filter is applied and the path to the file and attachment ID are passed as parameters.

Source

return apply_filters( 'wp_get_attachment_thumb_file', $thumbfile, $post->ID );

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