registered_meta_key_exists

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Summery Summery

Checks if a meta key is registered.

Syntax Syntax

registered_meta_key_exists( string $object_type, string $meta_key, string $object_subtype = '' )

Parameters Parameters

$object_type

(string) (Required) Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user', or any other object type with an associated meta table.

$meta_key

(string) (Required) Metadata key.

$object_subtype

(string) (Optional) The subtype of the object type.

Default value: ''

Return Return

(bool) True if the meta key is registered to the object type and, if provided, the object subtype. False if not.

Source Source

File: wp-includes/meta.php

 *                                         array with 'schema' or 'prepare_callback' keys instead of a boolean.
 * }
 * @param string|array $deprecated Deprecated. Use `$args` instead.
 * @return bool True if the meta key was successfully registered in the global array, false if not.
 *              Registering a meta key with distinct sanitize and auth callbacks will fire those callbacks,

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Changelog Changelog

Changelog
Version Description
4.9.8 The $object_subtype parameter was added.
4.6.0 Introduced.

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