How to pass arguments to add_action()

2 Views

I declared an action for a single event in WordPress which accepts an array as an argument: 

$asins = array(); //I had to declare this since I'm getting a notice of undefined variable if I don't

add_action('z_purge_products_cache', array($this, 'purge_products_cache', $asins));

I also tried this one, but it doesn’t perform the action either:

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add_action('z_purge_products_cache', array($this, 'purge_products_cache'));

Then I schedule it: 

wp_schedule_single_event(time() + 20, 'z_purge_products_cache', $asins_r);

Then here’s the function that will be called once wp cron executes the action: 

public function purge_products_cache($asins){
  //send email here
}

Any ideas?

Post Views: 2

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2 comments

  1. The parameter needs to be passed to the callback function in the wp_schedule_single_event function, not the add_action function.

    Try this:

    add_action('z_purge_products_cache', array($this, 'purge_products_cache'));

    Then schedule the event, putting the parameter in an array:

    wp_schedule_single_event(time() + 20, 'z_purge_products_cache', array($asins_r));

    Your purge_products_cache function will be called with parameter $asins_r.

  2. Passing Argument in add_action() just see the following example ,

      function email_friends( $post_ID )  
{
   $friends = 'bob@example.org, susie@example.org';
   wp_mail( $friends, "sally's blog updated", 'I just put something on my blog: http://blog.example.com' );

   return $post_ID;
}
add_action( 'publish_post', 'email_friends' );

    Brief explanation about add_action() is here.

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