Algoritmo de Busqueda

[rodno]

hola, mira como lo implemente, o lo mejor tengo algun error y por eso se me demora

Código PHP:

                                      $limit_search=round($rs_datos_destino->RecordCount()/2,0);
                                    echo $limit_search;
                                    while (!$rs_datos_origen->EOF)
                                    {
                                       //$rs_datos_destino->fields[3];
                                      // while ($i<10)
                                       //{
                                        
 
                                            $i++;
                                            
                                            $flag_compare=false;
                                            $rs_datos_destino->Move($limit_search);
                                            if ($rs_datos_destino->fields[3]==$rs_datos_origen->fields[0])
                                                $flag_compare=true;
                                            else
                                            if ($rs_datos_destino->fields[3]>$rs_datos_origen->fields[0]) 
                                                {
                                                 //$limit_search=round($limit_search/2,0);
                                                 //echo $limit_search." mayor \n";
                                                 $rs_datos_destino->MoveFirst();
                                                 for ($k=0;$k<$limit_search;$k++)
                                                    {
                                                    if ($rs_datos_destino->fields[3]==$rs_datos_origen->fields[0])
                                                       {
                                                        $flag_compare=true;
                                                        $k=$limit_search;
                                                       }
                                                       //echo "inferior \n";
                                                   $rs_datos_destino->MoveNext();    
                                                    }
                                                }
                                            else //Busqueda 
                                                {
                                                //$limit_search=round(($rs_datos_destino->RecordCount()-$limit_search)/2,0); 
                                                
                                                 $rs_datos_destino->MoveNext();
                                                 
                                                  while (!$rs_datos_destino->EOF || $flag_compare!=true)
                                                      {
                                                      //echo " superior \n";  
                                                      if ($rs_datos_destino->fields[3]==$rs_datos_origen->fields[0])
                                                         $flag_compare=true;
                                                       $rs_datos_destino->MoveNext();    
                                                      }
                                                }
     
                                      $rs_datos_origen->MoveNext();  
                                   }