jetpack_photon_pre_image_url

Filter the original image URL before it goes through Photon.

Description

apply_filters( 'jetpack_photon_pre_image_url', (string) $image_url, (array|string) $args, (string|null) $scheme ); 

Parameters (3)

0. $image_url (string)
The image url.
1. $args (array|string)
Array of Photon arguments.
2. $scheme (string|null)
Image scheme. Default to null.

Usage

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

Defined (1)

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

/functions.photon.php  
  1. $image_url = apply_filters( 'jetpack_photon_pre_image_url', $image_url, $args, $scheme );