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run code in 150+ php & hhvm versions
Bugs & Features
<?php $variableName = 'location'; ${$variableName}->city = 'Chicago'; var_dump($location->city);
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Warning: Creating default object from empty value in /in/okn2H on line 3 string(7) "Chicago"
Output for 5.0.0 - 5.3.29
Strict Standards: Creating default object from empty value in /in/okn2H on line 3 string(7) "Chicago"
Output for 4.3.0 - 4.4.9
string(7) "Chicago"