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<?php $uebung = 'test'; $sql = "SELECT * FROM `$uebung` ORDER BY ID DESC"; var_dump($sql);
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
string(38) "SELECT * FROM `test` ORDER BY ID DESC"