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<?php $o = new stdClass(); $o->var = 123; $new_o = $o; //等于$new_o = & $o; unset($new_o); var_dump($o);
Output for 5.0.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
object(stdClass)#1 (1) { ["var"]=> int(123) }
Output for 4.3.0 - 4.4.9
object(stdClass)(1) { ["var"]=> int(123) }