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<?php class Foo { public $foo; public function &bar1() { return $this; } public function bar2($o) { $x =& $this->bar1(); $x = $o; } } $a = new Foo; $a->foo = 1; $b = new Foo; $b->foo = 2; var_dump($a->foo, $b->foo); $a->bar2($b); var_dump($a->foo, $b->foo);
Output for git.master, git.master_jit, rfc.property-hooks
int(1) int(2) int(1) int(2)

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