function add_user_meta($user_id, $meta_key, $meta_value, $unique = false) {}

Add meta data field to a user.
Post meta data is called "Custom Fields" on the Administration Screens.


  • int $user_id: Post ID.
  • string $meta_key: Metadata name.
  • mixed $meta_value: Metadata value.
  • bool $unique: Optional, default is false. Whether the same key should not be added.

Return values

returns:False for failure. True for success.

Source code

function add_user_meta($user_id, $meta_key, $meta_value, $unique = false) {

	return add_metadata('user', $user_id, $meta_key, $meta_value, $unique);



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