mc4wp_merge_vars

The MailChimp for WordPress Lite mc4wp merge vars hook.

Description

apply_filters( 'mc4wp_merge_vars', (array) $merge_vars, (string) $type ); 

Parameters (2)

0. $merge_vars (array)
The merge vars.
1. $type (string)
Use this to filter the final merge vars before the request is sent to MailChimp

Usage

To run the hook, copy the example below.
  1. $merge_vars = apply_filters( 'mc4wp_merge_vars', $merge_vars, $type ); 
  2.  
  3. if ( !empty( $merge_vars ) ) { 
  4.  
  5. // everything has led up to this point... 
  6.  
  7.  
The following example is for adding a hook callback.
  1. // define the mc4wp_merge_vars callback 
  2. function filter_mc4wp_merge_vars( $merge_vars, $type ) { 
  3. // make filter magic happen here... 
  4. return $merge_vars
  5. }; 
  6.  
  7. // add the filter 
  8. add_filter( 'mc4wp_merge_vars', 'filter_mc4wp_merge_vars', 10, 2 ); 
To remove a hook callback, use the example below.
  1. // remove the filter 
  2. remove_filter( 'mc4wp_merge_vars', 'filter_mc4wp_merge_vars', 10, 2 ); 

Defined (2)

The filter is defined in the following location(s).

/includes/integrations/class-integration.php  
  1. $merge_vars = apply_filters( 'mc4wp_merge_vars', $merge_vars, $type ); 
/includes/class-subscribe-request.php  
  1. $merge_vars = apply_filters( 'mc4wp_merge_vars', $merge_vars, 0, $list_id );