explode和implode的运用

 1 $kesu_list=DD(‘Kesu.Kesu‘)->kesu_list();
 2 foreach($kesu_list[0] as $key=>$val){
 3     $reason_id_list[][‘reason_id‘]=$val[‘reason_id‘];
 4 }
 5 foreach($reason_id_list as $k=>$v){
 6     $reason_id_list_new[]=explode(",",$v[‘reason_id‘]);
 7 }
 8 if($reason_id_list_new){
 9     $tousu_content=DD(‘Kesu.Kesu‘)->reason_id_list_new($reason_id_list_new);
10 }
11 foreach($tousu_content as $k3=>$v3){            
12     $tousu_content_list[][‘reason_info‘] = implode(",",$v3);
13 }
14 foreach($kesu_list[0] as $k4=>$v4){
15     $kesu_list_new[] = array_merge($v4,$tousu_content_list[$k4]);
16 }