Core Function
View Source on Trac ↗ registered_meta_key_exists()
registered_meta_key_exists( mixed $object_type, mixed $meta_key, mixed $object_subtype = '' ) Checks if a meta key is registered.
Parameters 2 required
| Name / Type | Description |
|---|---|
| string | $object_type Type of object metadata is for. Accepts 'post', 'comment', 'term', 'user', or any other object type with an associated meta table. Required |
| $meta_key string | Metadata key. Required |
| $object_subtype string | Optional. The subtype of the object type. Default empty string. |
Return Value
(bool)
bool True if the meta key is registered to the object type and, if provided,
the object subtype. False if not.
Function Information
Since Version
4.6.0
Source File
wp-includes/meta.php
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