plugins - What's the best way to echo out a filter variable?

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I have a plugin filter that isn't working for me:

add_filter( 'gform_notification_email_3', 'route_notification', 10, 2 );
function route_notification($email_to, $entry) {
    global $post;
    $email_to = get_the_author_email();
    return $email_to;
}

I think the $email_to variable isn't being set properly, but how do I echo this variable out to check it?

I have a plugin filter that isn't working for me:

add_filter( 'gform_notification_email_3', 'route_notification', 10, 2 );
function route_notification($email_to, $entry) {
    global $post;
    $email_to = get_the_author_email();
    return $email_to;
}

I think the $email_to variable isn't being set properly, but how do I echo this variable out to check it?

• plugins
• filters
• variables
• plugin-gravity-forms

Share Improve this question asked Apr 18, 2011 at 15:42 jnthnclrkjnthnclrk 1,84544 gold badges2525 silver badges5252 bronze badges

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1 Answer 1

Sorted by: Reset to default 1

Like usual. :) Works most of the time unless it ends up in some place that is not echoed to the screen by browser.

echo $email_to;

And for debug it is more informational to use var_dump(). Personally I usually use this to quickly add/remove dump to filter:

add_filter('filter','dump_filter',10, 1); // 1, or how many arguments the filter passes.

function dump_filter($input) {

    var_dump(func_get_args());

    return $input;
}

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