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Codice PHP:
function getUnformattedTree($node $deep false)
                {
                   
// Esegue il casting di node
                   
$node = (int)$node;
                   
                   
// Definizione della clausola where
                   
$where "";
                   
                   
// Se viene passato l'id di un nodo
                   // imposto $where per mostrare solo
                   // quel nodo
                   
if ($node != 0)
                     {
                        
// Ottengo i flag dx e sx del nodo
                        
$flags $this->_getProperties($node);
                        
                        
// Costruisco la clausola WHERE
                        
$where "WHERE " $this->_prefix "tree.sx >= {$flags['sx']}
                                    AND " 
$this->_prefix "tree.dx <= {$flags['dx']}";
                     } 
// END if $node != 0
                   
                   
$query "SELECT " $this->_prefix "details.id AS id,
                                    " 
$this->_prefix "tree.sx AS sx,
                                    " 
$this->_prefix "tree.dx AS dx,
                                    " 
$this->_prefix "details.name AS name
                               FROM " 
$this->_prefix "tree
                          LEFT JOIN " 
$this->_prefix "details ON " $this->_prefix "details.node = " $this->_prefix "tree.id
                           
$where
                           ORDER BY " 
$this->_prefix "tree.sx ASC";
                   
                   
// Esecuzione della query
                   // e restituzione del risultato
                   
$result mysql_query($query) or die (mysql_error());
                   
                   
// Costruisco l'array da esportare
                   
$i 0// Contatore dell'indice dell'array
                   
$lastSx 1// Ultimo valore del flag sx
                   
$tab 0// numero di ripetizioni del carattere di indentazione
                   
while ($row mysql_fetch_array($result))
                        {
                           
/* Inizio procedimento di indentazione */
                           
                           // Assegnazione più casting della variabile $sx
                           
$sx = (int)$row['sx'];
                           
                           if ( 
$sx === ( $lastSx ) )
                             {
                                
$tab++;
                             }
                           else if ( 
$sx > ( $lastSx ) && $tab >= ( $sx - ( $lastSx ) ) )
                             {
                                
$tab -= $sx - ( $lastSx );
                             }
                           
/* Fine procedimento di indentazione */
                           
                           // Controllo se si deve limitare la profondità
                           
if ($deep !== false)
                             {
                                
// Casting di $deep
                                
$deep = (int)$deep;
                                
                                
// Sottraggo 1 a deep
                                //$deep = $deep -1;
                                // Bisogna limitare la profondità
                                
if ($tab '0' && $tab <= $deep)
                                  {
                                     
$export[$i]['id'] = $row['id'];
                                     
$export[$i]['name'] = $row['name'];
                                     
$export[$i]['sx'] = $row['sx'];
                                     
$export[$i]['dx'] = $row['dx'];
                                     
$export[$i]['isLeaf'] = $this->_isLeaf$row['sx'] , $row['dx'] );
                                     
$export[$i]['level'] = $tab;
                                     
$i++;
                                  }
                             }
                           else
                             {
                                
// Non bisogna limitare la profondità
                                // Assegnazione dei valori all'array da esportare
                                
$export[$i]['id'] = $row['id'];
                                
$export[$i]['name'] = $row['name'];
                                
$export[$i]['sx'] = $row['sx'];
                                
$export[$i]['dx'] = $row['dx'];
                                
$export[$i]['isLeaf'] = $this->_isLeaf$row['sx'] , $row['dx'] );
                                
$export[$i]['level'] = $tab;
                                
$i++;
                             }
                           
                           
                           
$lastSx $row['sx'];
                        }
                    return 
$export;
                } 
// End getUnformattedTree()