Description

Filter out register_meta() args based on a whitelist.

register_meta() args may change over time, so requiring the whitelist to be explicitly turned off is a warranty seal of sorts.

Usage

$array = _wp_register_meta_args_whitelist( $args, $default_args );

Parameters

$args

( array ) required – Arguments from `register_meta()`.

$default_args

( array ) required – Default arguments for `register_meta()`.

Returns

array Filtered arguments.

Source

File name: wordpress/wp-includes/meta.php
Lines: 1 to 12 of 12

function _wp_register_meta_args_whitelist( $args, $default_args ) {
  $whitelist = array_keys( $default_args );

  // In an anonymous function world, this would be better as an array_filter()
  foreach ( $args as $key => $value ) {
    if ( ! in_array( $key, $whitelist ) ) {
      unset( $args[ $key ] );
    }
  }

  return $args;
}
 

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