mce_css

The WordPress Core mce css hook.

Description

add_filter( 'mce_css', (callback) $array ); 

Parameters (1)

0. $array (callback) => array( $this, 'add_editor_style' )
The array.

Usage

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

Defined (2)

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

/wp-admin/includes/class-wp-press-this.php  
  1. add_filter( 'mce_css', array( $this, 'add_editor_style' ) ); 
/wp-includes/class-wp-editor.php  
  1. $mce_css = trim( apply_filters( 'mce_css', implode( ', ', $mce_css ) ), ' , ' );