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run code in 150+ php & hhvm versions
Bugs & Features
<?php $name = 'this'; var_dump(array(${$name}));
Output for 5.0.4 - 7.1.0
Notice: Undefined variable: this in /in/cdVBp on line 3 array(1) { [0]=> NULL }
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: this in /in/cdVBp on line 3 array(1) { [0]=> NULL }