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<?php $o = new stdClass; $o->{$name = " \x0"} = 'a'; var_dump(array($name, $o->{" "}, $o->$name));
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: Undefined property: stdClass::$ in /in/EZXUq on line 5 array(3) { [0]=> string(2) " " [1]=> NULL [2]=> string(1) "a" }
Output for 5.2.6 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33
Notice: Undefined property: stdClass::$ in /in/EZXUq on line 5 array(3) { [0]=> string(2) " " [1]=> NULL [2]=> string(1) "a" }
Output for 7.3.32 - 7.3.33, 7.4.26
array(3) { [0]=> string(2) " " [1]=> NULL [2]=> string(1) "a" }
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.5
Notice: Undefined property: stdClass::$ in /in/EZXUq on line 5 array(3) { [0]=> string(2) " " [1]=> NULL [2]=> string(1) "a" }
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9
Notice: Undefined property: in /in/EZXUq on line 5 array(3) { [0]=> string(2) " " [1]=> NULL [2]=> string(1) "a" }

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