Support » Fixing WordPress » attachment_link filter hook not passing ID

  • Resolved pbalazs


    I’m trying to modify the attachment permalinks with the corresponding hook, but I’m having an issue: the attachment ID doesn’t get passed to the function.
    Here’s my code:

    function __filter_attachment_link( $link, $id )
        return preg_replace( '#attachment/(.+)$#', 'photo/'.$id, $link );
    add_filter( 'attachment_link', '__filter_attachment_link' );

    I get the following error: “Warning: Missing argument 2 for __filter_attachment_link() in …”
    Although in the Filter Reference it says “Filter function arguments: link URL, attachment ID”.
    Does anybody have an idea what is the problem here?
    Thanks in advance.

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