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run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump(isset($$asd));
Output for 5.1.0 - 7.1.0
bool(false)
Output for 5.0.4 - 5.0.5
Notice: Undefined variable: asd in /in/9Jf7h on line 2 bool(false)
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: asd in /in/9Jf7h on line 2 bool(false)