add_user_meta()
Adds meta data to a user.
Uses: add_metadata()
No Hooks.
Return
Int|false
. Meta ID on success, false on failure.
Usage
add_user_meta( $user_id, $meta_key, $meta_value, $unique );
- $user_id(int) (required)
- User ID.
- $meta_key(string) (required)
- Metadata name.
- $meta_value(mixed) (required)
- Metadata value. Must be serializable if non-scalar.
- $unique(true|false)
- Whether the same key should not be added.
Default: false
Changelog
Since 3.0.0 | Introduced. |
Code of add_user_meta() add user meta WP 5.9.3
function add_user_meta( $user_id, $meta_key, $meta_value, $unique = false ) { return add_metadata( 'user', $user_id, $meta_key, $meta_value, $unique ); }