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Description

Send a JSON response back to an Ajax request, indicating failure.

If the $data parameter is a WP_Error object, the errors within the object are processed and output as an array of error codes and corresponding messages. All other types are output without further processing.

Usage

wp_send_json_error( $data, $status_code, $options );

Parameters

$data

( mixed ) optional – Optional. Data to encode as JSON, then print and die. Default null.

$status_code

( int ) optional – Optional. The HTTP status code to output. Default null.

$options

( int ) optional – Optional. Options to be passed to json_encode(). Default 0.

Returns

void

Source

File name: wordpress/wp-includes/functions.php
Lines:

function wp_send_json_error( $data = null, $status_code = null, $options = 0 ) {
  $response = array( 'success' => false );

  if ( isset( $data ) ) {
    if ( is_wp_error( $data ) ) {
      $result = array();
      foreach ( $data->errors as $code => $messages ) {
        foreach ( $messages as $message ) {
          $result[] = array(
            'code'    => $code,
            'message' => $message,
          );
        }
      }

      $response['data'] = $result;
    } else {
      $response['data'] = $data;
    }
  }

  wp_send_json( $response, $status_code, $options );
}
 

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