[classe] Sessioni su file XML

[VaLvOnAuTa]

Ricontrollandoil codice, ho notato qualche errorino che ho corretto:

<?php
class xmlSession {
 private  $id;
 private  $xmlContent;
 private  $file;
  
 public function __construct() {
  if (isset($_COOKIE['id'])) {
   $this->id = $_COOKIE['id'];
  }
  else {
   $this->id = md5(time());
   setcookie('id',$this->id);
  }
  $this->file = './sessioni/'.$this->id.'.xml';
  if (file_exists($this->file)) {
   $this->xmlContent = file_get_contents($this->file); 
  }
  else {
   $fp = fopen($this->file,'w');
   fwrite($fp,'<sessione>'.chr(13).'</sessione>');
   fclose($fp);
   $this->xmlContent = file_get_contents($this->file);
  }
  return true;
 }

 public function getValue($child) {
  return $this->existsValue($child);
 }

 public function setValue($child,$value) {
  if ($this->existsValue($child)) {
   $this->xmlContent = eregi_replace('<'.$child.'>(.+)</'.$child.'>','<'.$child.'>'.$value.'</'.$child.'>',$this->xmlContent);
  }
  else {
   $this->xmlContent = eregi_replace('<sessione>'.chr(13),'<sessione>'.chr(13).'<'.$child.'>'.$value.'</'.$child.'>'.chr(13),$this->xmlContent);
  }  
  return true;
 }

 public function unsetValue($child) {
  if ($this->existsValue($child)) {
   $this->xmlContent = eregi_replace('<'.$child.'>(.+)</'.$child.'>'.chr(13),'',$this->xmlContent);
  }
  $this->saveXml(); 
  return true;
 }
  
 public function printXml() {
  echo $this->xmlContent;
  return true;
 }  

 private function existsValue($child) {
  if (eregi('<'.$child.'>(.+)</'.$child.'>',$this->xmlContent,$args)) {
   return $args[0];
  }
  else {
   return false;
  }
 }

 private function saveXml() {
  $fp = fopen($this->file,'w');
  fwrite($fp,$this->xmlContent);
  fclose($fp);
  return true;
 }

 public function destroyXml() {
  unlink($this->file);
  setcookie('id');
  unset($this->xmlContent);
 }

 public function __destruct() {
  $this->saveXml();
  unset($this->xmlContent);
 }
}
?>