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metadata_exists

December 13, 2011 by Thorsten 0 Comments

Definition:
function metadata_exists( $meta_type, $object_id, $meta_key ) {}

Determine if a meta key is set for a given object

Parameters

  • string $meta_type: Type of object metadata is for (e.g., comment, post, or user)
  • int $object_id: ID of the object metadata is for
  • string $meta_key: Metadata key.

Return values

returns:true of the key is set, false if not.

Defined filters

  • get_{$meta_type}_metadata
    apply_filters( "get_{$meta_type}_metadata", null, $object_id, $meta_key, true )

Source code

function metadata_exists( $meta_type, $object_id, $meta_key ) {

	if ( ! $meta_type )

		return false;



	if ( ! $object_id = absint( $object_id ) )

		return false;



	$check = apply_filters( "get_{$meta_type}_metadata", null, $object_id, $meta_key, true );

16783

/wp-includes/meta.php, Documentation, Files, Filters, Filters by letter g, Functions, Functions by letter m
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