wp-includes/rest-api/class-wp-rest-response.php:225Retrieves a WP_Error object from the response.
WP_Error|null public function as_error() { if ( ! $this->is_error() ) { return null; } $error = new WP_Error(); if ( is_array( $this->get_data() ) ) { $data = $this->get_data(); $error->add( $data['code'], $data['message'], $data['data'] ); if ( ! empty( $data['additional_errors'] ) ) { foreach ( $data['additional_errors'] as $err ) { $error->add( $err['code'], $err['message'], $err['data'] ); } } } else { $error->add( $this->get_status(), '', array( 'status' => $this->get_status() ) ); } return $error; }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.