diff --git a/src/wp-includes/functions.php b/src/wp-includes/functions.php
index 7b5aeb8948..537425d898 100644
--- a/src/wp-includes/functions.php
+++ b/src/wp-includes/functions.php
@@ -4078,12 +4078,14 @@ function _wp_json_prepare_data( $data ) {
  *
  * @since 3.5.0
  * @since 4.7.0 The `$status_code` parameter was added.
+ * @since 5.6.0 The `$options` parameter was added.
  *
  * @param mixed $response    Variable (usually an array or object) to encode as JSON,
  *                           then print and die.
- * @param int   $status_code The HTTP status code to output.
+ * @param int   $status_code Optional. The HTTP status code to output. Default null.
+ * @param int   $options     Optional. Options to be passed to json_encode(). Default 0.
  */
-function wp_send_json( $response, $status_code = null ) {
+function wp_send_json( $response, $status_code = null, $options = 0 ) {
 	if ( defined( 'REST_REQUEST' ) && REST_REQUEST ) {
 		_doing_it_wrong(
 			__FUNCTION__,
@@ -4104,7 +4106,7 @@ function wp_send_json( $response, $status_code = null ) {
 		}
 	}
 
-	echo wp_json_encode( $response );
+	echo wp_json_encode( $response, $options );
 
 	if ( wp_doing_ajax() ) {
 		wp_die(
@@ -4124,18 +4126,20 @@ function wp_send_json( $response, $status_code = null ) {
  *
  * @since 3.5.0
  * @since 4.7.0 The `$status_code` parameter was added.
+ * @since 5.6.0 The `$options` parameter was added.
  *
- * @param mixed $data        Data to encode as JSON, then print and die.
- * @param int   $status_code The HTTP status code to output.
+ * @param mixed $data        Optional. Data to encode as JSON, then print and die. Default null.
+ * @param int   $status_code Optional. The HTTP status code to output. Default null.
+ * @param int   $options     Optional. Options to be passed to json_encode(). Default 0.
  */
-function wp_send_json_success( $data = null, $status_code = null ) {
+function wp_send_json_success( $data = null, $status_code = null, $options = 0 ) {
 	$response = array( 'success' => true );
 
 	if ( isset( $data ) ) {
 		$response['data'] = $data;
 	}
 
-	wp_send_json( $response, $status_code );
+	wp_send_json( $response, $status_code, $options );
 }
 
 /**
@@ -4149,11 +4153,13 @@ function wp_send_json_success( $data = null, $status_code = null ) {
  * @since 3.5.0
  * @since 4.1.0 The `$data` parameter is now processed if a WP_Error object is passed in.
  * @since 4.7.0 The `$status_code` parameter was added.
+ * @since 5.6.0 The `$options` parameter was added.
  *
- * @param mixed $data        Data to encode as JSON, then print and die.
- * @param int   $status_code The HTTP status code to output.
+ * @param mixed $data        Optional. Data to encode as JSON, then print and die. Default null.
+ * @param int   $status_code Optional. The HTTP status code to output. Default null.
+ * @param int   $options     Optional. Options to be passed to json_encode(). Default 0.
  */
-function wp_send_json_error( $data = null, $status_code = null ) {
+function wp_send_json_error( $data = null, $status_code = null, $options = 0 ) {
 	$response = array( 'success' => false );
 
 	if ( isset( $data ) ) {
@@ -4174,7 +4180,7 @@ function wp_send_json_error( $data = null, $status_code = null ) {
 		}
 	}
 
-	wp_send_json( $response, $status_code );
+	wp_send_json( $response, $status_code, $options );
 }
 
 /**