register_meta_args filter-hookWP 4.6.0

Filters the registration arguments when registering meta.

Usage

add_filter( 'register_meta_args', 'wp_kama_register_meta_args_filter', 10, 4 );

/**
 * Function for `register_meta_args` filter-hook.
 * 
 * @param array  $args        Array of meta registration arguments.
 * @param array  $defaults    Array of default arguments.
 * @param string $object_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user', or any other object type with an associated meta table.
 * @param string $meta_key    Meta key.
 *
 * @return array
 */
function wp_kama_register_meta_args_filter( $args, $defaults, $object_type, $meta_key ){

	// filter...
	return $args;
}
$args(array)
Array of meta registration arguments.
$defaults(array)
Array of default arguments.
$object_type(string)
Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user', or any other object type with an associated meta table.
$meta_key(string)
Meta key.

Changelog

Since 4.6.0 Introduced.

Where the hook is called

register_meta()
register_meta_args
wp-includes/meta.php 1438
$args = apply_filters( 'register_meta_args', $args, $defaults, $object_type, $meta_key );

Where the hook is used in WordPress

wp-includes/default-filters.php 104
add_filter( 'register_meta_args', '_wp_register_meta_args_allowed_list', 10, 2 );