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<?php $variableName = 'location'; ${$variableName}->city = 'Chicago'; var_dump($location->city); var_dump(${'location->city'});
Output for 5.4.0 - 7.1.0
Warning: Creating default object from empty value in /in/qoRLM on line 3 string(7) "Chicago" Notice: Undefined variable: location->city in /in/qoRLM on line 6 NULL
Output for 5.0.4 - 5.3.29
Strict Standards: Creating default object from empty value in /in/qoRLM on line 3 string(7) "Chicago" Notice: Undefined variable: location->city in /in/qoRLM on line 6 NULL
Output for 5.0.0 - 5.0.3
Strict Standards: Creating default object from empty value in /in/qoRLM on line 3 string(7) "Chicago" Notice: Undefined variable: location->city in /in/qoRLM on line 6 NULL
Output for 4.3.0 - 4.4.9
string(7) "Chicago" Notice: Undefined variable: location->city in /in/qoRLM on line 6 NULL