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<?php $foo = null; $name = 'this'; var_dump(array($$name)); var_dump(array(isset($$name) ? $$name : $$name));
Output for 5.0.4 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Notice: Undefined variable: this in /in/4DRkl on line 4 array(1) { [0]=> NULL } Notice: Undefined variable: this in /in/4DRkl on line 5 array(1) { [0]=> NULL }
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: this in /in/4DRkl on line 4 array(1) { [0]=> NULL } Notice: Undefined variable: this in /in/4DRkl on line 5 array(1) { [0]=> NULL }