(field) filter-hook . WP 2.3.0

Filters the value of a specific post field for display.

The dynamic portion of the hook name, $field, refers to the post field name.

Usage

add_filter( '(field)', 'filter_function_name_9338', 10, 3 );
function filter_function_name_9338( $value, $post_id, $context ){
	// filter...

	return $value;
}

$value(mixed)

Value of the prefixed post field.

$post_id(int)

Post ID.

$context(string)

Context for how to sanitize the field. Accepts 'raw', 'edit', 'db', 'display', 'attribute', or 'js'.
Default: 'display'

Changelog

Where the hook is called

$value = apply_filters( "{$field}", $value, $post_id, $context );

$value = apply_filters( "{$field}", $value, $bookmark_id, $context );

$value = apply_filters( "{$field}", $value, $user_id, $context );

Where in WP core the hook is used WordPress