[RESOLVED] PHP 5: Objects loading own properties from arrays

[void_function]

Hi all!

I need some of my objects to be able to load themselves from session arrays. For some particular reasons, I need all functionality of the class to be native to the class, so no external loader functions.

The particular problem is loading all object properties from (session) array. If done with an external function, I might simply unserialize entire object, but that's not what I need. I need object method to load up its own properties from array.

Is there a fast way, or way native to PHP to do this? I thought extract() might help, but I don't know how to tell it to use class namespace as symbol table.

For instance, I thought to do it like this:

class TClass {
  protected var $a;
  protected var $b;
  protected var $c;

  protected function loadfromsession() {
    foreach ($_SESSION['data'] as $var => $val) {
      if (ctype_digit($val)) eval "\$this->$var= $val;";
      else eval "\$this->$var= '$val';";
    }
 }
  // ...
}

[ahundiak]

Not sure exactly what you asking for. Why not:

  protected function loadfromsession() {
    foreach ($_SESSION['data'] as $var => $val) {
      $this->$var = $val;
    }

[void_function]

ahundiak wrote:

Not sure exactly what you asking for. Why not: (...)

Hmm, I didn't think $this->$var was valid syntax. Turns out it is.... Heh, thanks. Yeah, this works ok, except I was wondering if there is a "native" way? Like extract()? extract() is particularly good as it can be set to ignore variables that do not already exist... but I don't know how to implement it for object properties, if at all possible.

[NogDog]

protected function loadfromsession() {
   foreach ($_SESSION['data'] as $var => $val) {
      if (property_exists($this, $var) {
         $this->$var = $val;
      }
   }
}

[void_function]

Hmm, so I guess there is no "cleaner way"... Anyways, thanks for the help, I'll implement it for now as you guys suggested.