function dominant_attachment_save($attachment_id)
{
    if (wp_attachment_is_image($attachment_id)) {
        $path = get_attached_file($attachment_id);
        $color = dominant_color($path);
        update_post_meta($attachment_id, 'dominant_color', $color);
    }
}
 else
 {
   asort($results);
   $results = array_keys($results);
   return $results[count($results)-1];
 }
}
$colors = array(
 'red' => array(255,0,0),
 'orange' => array(255,127,0),
 'yellow' => array(255,255,0),
 'green' => array(0,255,0),
 'blue' => array(0,0,255),
 'purple' => array(127,0,255),
 'pink' => array(255,0,255),
 );
*/
if (isset($_GET['id_bille'])) {
    $id_bille = $_GET['id_bille'];
    $nom_image = 'IMAGES/MAIN/THUMBNAIL/' . $id_bille . '.jpg';
} else {
    $id_bille = 0;
    retournerErreur(400, 01, 'GET_JSON_BILLE_COLOR.PHP| Pas de référence de bille dans les données');
}
$r_json = dominant_color($nom_image);
echo json_encode($r_json, JSON_UNESCAPED_SLASHES);
exit;
?>