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Subject: Unexpected behavior of $this->$propertyName[...]
From: robert@typo3.org (Robert Lemke)

Dear internals,

please consider the following code executed with PHP 5.3alpha3:

<?php
class Foo {
	protected $foo = array('bar' => 'baz');

	public function test() {
		$propertyName = 'foo';
		var_dump(isset($this->foo['bar']));
		var_dump(isset($this->$propertyName['bar']));
	}
}

$object = new Foo;
$object->test();
?>

Expected output:

array
   'foo' =>
     array
       'bar' => string 'quux' (length=4)

Actual output:

array
   'foo' =>
     array
       'bar' => string 'baz' (length=3)
   'f' => string 'quux' (length=4)

Is this a bug or missing feature?

Cheers,
robert