wp-includes/rest-api/class-wp-rest-response.php:58Adds a link to the response.
$relstring$hrefstring$attributesarrayoptionalarray() public function add_link( $rel, $href, $attributes = array() ) { if ( empty( $this->links[ $rel ] ) ) { $this->links[ $rel ] = array(); } if ( isset( $attributes['href'] ) ) { // Remove the href attribute, as it's used for the main URL. unset( $attributes['href'] ); } $this->links[ $rel ][] = array( 'href' => $href, 'attributes' => $attributes, ); }Introduced in 4.4.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/rest-api/class-wp-rest-response.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.