wp-includes/rest-api.php:1853Formats a combining operation error into a WP_Error object.
$paramstring$errorarrayWP_Errorfunction rest_format_combining_operation_error( $param, $error ) { $position = $error['index']; $reason = $error['error_object']->get_error_message(); if ( isset( $error['schema']['title'] ) ) { $title = $error['schema']['title']; return new WP_Error( 'rest_no_matching_schema', /* translators: 1: Parameter, 2: Schema title, 3: Reason. */ sprintf( __( '%1$s is not a valid %2$s. Reason: %3$s' ), $param, $title, $reason ), array( 'position' => $position ) ); } return new WP_Error( 'rest_no_matching_schema', /* translators: 1: Parameter, 2: Reason. */ sprintf( __( '%1$s does not match the expected format. Reason: %2$s' ), $param, $reason ), array( 'position' => $position ) );}Introduced in 5.6.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/rest-api.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.