public static function isChildHigherstudysubjects($SubjectId, $ChildSubjectId) { $ischild = false; $obj_retResult = DAL_manageHigherstudysubjects::getHigherstudysubjectsListBySubjectId($ChildSubjectId); //get child node if ($obj_retResult->type == 1) { $arr_HigherstudysubjectsList = $obj_retResult->data; $obj_Higherstudysubjects = $arr_HigherstudysubjectsList[0]; $arrParentIds = explode(",", $obj_Higherstudysubjects->Url); foreach ($arrParentIds as $HigherstudysubjectsParentId) { if ($HigherstudysubjectsParentId == $SubjectId) { $ischild = true; } } } return $ischild; }