php, dynamically creating variables

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(sorry for my bad English, i use Google.Translate) faced with the problem of dynamically creating variables in the class. There are classes at the entrance to __construct transferred to variables. further cycles

foreach ($collector as $key => $field) {
$this->$key = $field; 
} 

variables are added to the class. but this code works in other classes, except one. here is the class

foreach ($collector as $key => $field) {
     $this->$key = $field;
            if (isset($this->$key))
              var_dump($this->$key);
        }
     var_dump('<pre>',$collector);
     var_dump($this);
     die();

var_dump('<pre>',$collector) - dumps the object

if (isset($this->$key))
var_dump($this->$key)

call magic __get(); since there is no variable

var_dump($this) - dumps the object but necessary variables I can not see.

Help me, please!

asked 59 secs ago

user3132358

11