customize_validate_(setting_id) │ filter-hook │ WP 1.0

This filter is documented in wp-includes/class-wp-customize-setting.php

Usage

add_filter( 'customize_validate_(setting_id)', 'wp_kama_customize_validate_setting_id_filter', 10, 3 );

/**
 * Function for `customize_validate_(setting_id)` filter-hook.
 * 
 * @param  $WP_Error          
 * @param  $unsanitized_value 
 * @param  $setting           
 *
 * @return 
 */
function wp_kama_customize_validate_setting_id_filter( $WP_Error, $unsanitized_value, $setting ){

	// filter...
	return $WP_Error;
}

$WP_Error

-

$unsanitized_value

-

$setting

-

Where the hook is called

$late_validity = apply_filters( "customize_validate_{$setting->id}", new WP_Error(), $unsanitized_value, $setting );

Where the hook is used in WordPress

add_filter( "customize_validate_{$this->id}", $this->validate_callback, 10, 3 );