s2_email_subject

The Subscribe2 s2 email subject hook.

Description

apply_filters( 's2_email_subject', (unknown) $subject ); 

Parameters (1)

0. $subject (unknown)

The subject.

Usage

To run the hook, copy the example below.

$subject = apply_filters( 's2_email_subject', $subject ); 
                         
if ( !empty( $subject ) ) { 
                         
   // everything has led up to this point... 
                         
} 
  

The following example is for adding a hook callback.

// define the s2_email_subject callback 
function filter_s2_email_subject( $subject ) { 
    // make filter magic happen here... 
    return $subject; 
}; 
         
// add the filter 
add_filter( 's2_email_subject', 'filter_s2_email_subject', 10, 1 ); 

To remove a hook callback, use the example below.

// remove the filter 
remove_filter( 's2_email_subject', 'filter_s2_email_subject', 10, 1 );