Ticket #29910: esc_json_encode.php

<?php 

/**
 *  Escaping for HTML attributes use this instead of esc_attr( json_encode( ) )
 *
 * @param  array or object $data array or object to be escaped 
 * @return properly escaped data
 */
function esc_json_encode( $data ) {

        if ( defined( 'JSON_HEX_AMP' ) ) { 
                // This is nice to have, but not strictly necessary since we use _wp_specialchars() below 
                $data = json_encode( $data, JSON_HEX_TAG | JSON_HEX_AMP | JSON_HEX_APOS | JSON_HEX_QUOT ); 
        } else { 
                $data = json_encode( $data ); 
        } 
        return _wp_specialchars( $data, ENT_QUOTES, false, true );
}