customize_validate_(id) filter-hook . WP 4.6.0

Validates a Customize setting value.

Plugins should amend the $validity object via its WP_Error::add() method.

The dynamic portion of the hook name, $this->ID, refers to the setting ID.

Usage

add_filter( 'customize_validate_(id)', 'filter_function_name_1891', 10, 3 );
function filter_function_name_1891( $validity, $value, $this ){
	// filter...

	return $validity;
}

$validity(WP_Error)

Filtered from true to WP_Error when invalid.

$value(mixed)

Value of the setting.

$this(WP_Customize_Setting)

WP_Customize_Setting instance.

Where the hook is called

$validity = apply_filters( "customize_validate_{$this->id}", $validity, $value, $this );

Where the hook is used (in WP core)

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