jetpack_custom_css_pre_post_id

This filter is documented in modules/custom-css/custom-css.php.

Description

apply_filters( 'jetpack_custom_css_pre_post_id', (null) $null ); 

If the callback function returns a non-null value, then post_id() will immediately return that value, instead of retrieving the normal post ID.

Parameters (1)

0. $null (null)
Null The ID to return instead of the normal ID.

Usage

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

Defined (1)

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

/modules/custom-css/custom-css.php  
  1. $custom_css_post_id = apply_filters( 'jetpack_custom_css_pre_post_id', null );