gfpdf_form_add_pdf_<form_id>

The Gravity PDF gfpdf form add pdf id hook.

Description

apply_filters( 'gfpdf_form_add_pdf_<form_id>', (unknown) $pdf, (unknown) $form_id ); 

Parameters (2)

0. $pdf (unknown)
The pdf.
1. $form_id (unknown)
The form id.

Usage

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

Defined (1)

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

/src/helper/abstract/Helper_Abstract_Options.php  
  1. $pdf = apply_filters( 'gfpdf_form_add_pdf_' . $form_id, $pdf, $form_id );