Ciao ragazzi, grazie e scusate l' assenza. Sto provando secondo i vosti consigli ma invano...sto andando un po' a caso nella speranza di capirci qualcosa:

Codice PHP:
public function f_update_by_post_array($array$pst$id_sow)       
{  
   
$ctrl 0;                 
   
$arrayBind = array('id_job_status' => 9'id_SOW' => $id_sow);        
   
       for(
$i=0$i<count($array); $i++)       
        {                    
               foreach(
$arrayBind as $key => $value)            
               {                                    
                 
$pst->bind_param('i'$arrayBind[$key], $array[$i]);            
               }
          
              
//se l' update va a buonfine incremento di 1           
              
if($pst->execute())           
               {  
                 
$ctrl++;           
               }                        
         }        

//se ha raggiunto $array significa che tutte le update        
//sono andare a buon fine        
if($ctrl == count($array))        
       {           
            return 
true;        
       }        
       else        
       {          
         return 
false;       
       }

Mi da questo errore:
Warning: mysqli_stmt::bind_param(): Number of elements in type definition string doesn't match number of bind variables in C:\Program Files\xampp\htdocs\bs_site\include\db_class.php on line 66

Warning: mysqli_stmt::bind_param(): Number of elements in type definition string doesn't match number of bind variables in C:\Program Files\xampp\htdocs\bs_site\include\db_class.php on line 66