wp-includes/rest-api/class-wp-rest-response.php:150Sets a single link header.
$relstring$linkstring$otherarrayoptionalarray() public function link_header( $rel, $link, $other = array() ) { $header = '<' . $link . '>; rel="' . $rel . '"'; foreach ( $other as $key => $value ) { if ( 'title' === $key ) { $value = '"' . $value . '"'; } $header .= '; ' . $key . '=' . $value; } $this->header( 'Link', $header, false ); }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.