I make a php script to check value before update. This script is working fine. But, I wonder how to simplify this. If there are hundred of column to be checked then it’s make hundred of php lines.

public function edit_project_master(){ $  no_pro     = 'PRJ-2017-501'; // $  na_pro     = $  this->input->post('na_pro'); //value for edit $  ja_pro     = $  this->input->post('i_metode'); //value for edit        $  check_pro  = $  this->MProject->get_det_pro($  no_pro); //get data form table  //checking script foreach($  check_pro as $  res_check_pro){      if($  na_pro != $  res_check_pro['NAMA_PROJECT']){  //IF VALUE DIFFERENT         $  col_name;          foreach($  res_check_pro as $  key_pro => $  val_pro){             if($  res_check_pro['NAMA_PROJECT'] == $  val_pro){                 $  col_name = $  key_pro;            //GET COLUMN NAME             }         }          $  data['ACTIVITY']       = "UPDATE";         $  data['OLD_VALUE']      = $  res_check_pro['NAMA_PROJECT'];         $  data['NEW_VALUE']      = $  na_pro;         $  data['COL_AFFECTED']   = $  col_name;         $  data['TABLE_AFFECTED'] = "PM_REQUIREMENT_PROJECT";  //How to get table name automatically??         $  data['ANNOTATION']     = NULL;         $  data['EXECUTOR']       = $  this->session->userdata('nip');         $  data['CHANGED_ON']     = date("Y-m-d H:i:s");         $  data['CHANGED_BY']     = $  _SERVER['REMOTE_ADDR'];         $  data['STATUS']         = 1;          $  this->MProject->ins_system_log($  data);                  }      if($  ja_pro != $  res_check_pro['JADWAL_PROJECT']){         $  col_name;          foreach($  res_check_pro as $  key_pro => $  val_pro){             if($  res_check_pro['JADWAL_PROJECT'] == $  val_pro){                 $  col_name = $  key_pro;             }         }          $  data['ACTIVITY']       = "UPDATE";         $  data['OLD_VALUE']      = $  res_check_pro['JADWAL_PROJECT'];         $  data['NEW_VALUE']      = $  na_pro;         $  data['COL_AFFECTED']   = $  col_name;         $  data['TABLE_AFFECTED'] = "PM_REQUIREMENT_PROJECT"; //How to get table name automatically??         $  data['ANNOTATION']     = NULL;         $  data['EXECUTOR']       = $  this->session->userdata('nip');         $  data['CHANGED_ON']     = date("Y-m-d H:i:s");         $  data['CHANGED_BY']     = $  _SERVER['REMOTE_ADDR'];         $  data['STATUS']         = 1;          $  this->MProject->ins_system_log($  data);                  }   }   } 

This is used for saving a log file for update. So, if a data is updated then it store a log in a table.