[PHP-DEV] Bug #11092 Updated: (Yet Another) References Weirdness From: sbergmann <email protected>
Date: 05/24/01

ID: 11092
Updated by: sbergmann
Reported By: sbergmann <email protected>
Status: Open
Bug Type: Scripting Engine problem
Operating system:
PHP Version: 4.0.5
Assigned To:
Comments:

Just noticed: It works as expected when I replace

  $a = $b->add_a();

with

  $a =& $b->add_a();

But this is not the syntax I was thinking of for my class. The user, which probably doesn't know of the class's internals, now has always use the =& assignment operator. This is definetly error-prone.

Previous Comments:
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[2001-05-24 13:04:25] sbergmann <email protected>
There seems to be a problem with objects returned from class methods by reference:

<?php
class a {
  var $data;

  function add_data($data) {
    $this->data[] = $data;
  }
}

class b {
  var $a;

  function &add_a() {
    $this->a = new a;
    return $this->a;
  }

  function dump() {
    print_r($this->a->data);
  }
}

$b = new b;
$a = $b->add_a();
$a->add_data('test'); // works not
$b->a->add_data('test'); // works
$b->dump();
?>

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