Reply To: I want to limit max file upload size in WP

[Tom]

Hi Joanne,

This is why it’s always good to prefix functions to avoid conflict.

So you could do this instead:

add_filter("adverts_gallery_upload_prefilter", "joanne_limit_file_uploads");
function joanne_limit_file_uploads( $file ) {
    if ( !isset($file["name"]) || !isset($file["type"]) ) {
        return $file;
    }
    if ( !isset( $_POST["post_id"] ) ) {
        $post_id = 0;
    } else {
        $post_id = intval($_POST["post_id"]);
    }

    if( $file["size"] >= 1000000 ) {
        $file["error"] = "Your file is to big.";
    }

    return $file;
}