pre_update_option_<option>

Filters a specific option before its value is (maybe) serialized and updated.

Description

apply_filters( 'pre_update_option_<option>', (mixed) $value, (mixed) $old_value, (string) $option ); 

The dynamic portion(s) of the hook name refer to the option name.

Parameters (3)

0. $value (mixed)
The new, unserialized option value.
1. $old_value (mixed)
The old option value.
2. $option (string)
Option name.

Usage

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

Defined (1)

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

/wp-includes/option.php  
  1. $value = apply_filters( "pre_update_option_{$option}", $value, $old_value, $option );