[PHP] Specific References Incident

[Ken Kinder]

I have one specific incident I could use some help with too. I have the 
following method:

  function validate() {
    if ($this->returning) {
      $errors = array();
    
      foreach ($this->children as $child) {
        $child->error = "Foo";
        $error = $child->validate();
        if ($error) {
          $this->errors_exist = 1;
          array_push ($errors, $error);
        }
      }
    }
    
    $this->errors = $errors;
  }

The $this->children attribute should be an array of (references to) objects. 
I think somehow in the foreach ($this->children as $child) the objects are 
being copied, as $child->validate(); seems not to effect the original objects.

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