update

if($cut_param_key == 'sale_place_custom'){
   $spc1 = array();
   $spc1_index = 0;
   foreach($param_value as $spc1_item){
      $spc1[] = array(
         'id' => $spc1_index,
         'region' => $spc1_item,
      );
      $spc1_index++;
   }
   $project->sale_place_custom = json_encode($spc1);
}