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<?php a = array(); $a['a'] = 'a'; $a['b'] = 'b'; echo $a->a; unset($a->a); var_dump($a);
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.7
Parse error: syntax error, unexpected '=' in /in/AHdCC on line 3
Process exited with code 255.

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