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<?php function f(&$obst) { $obst['birne'] = 'gelb'; return $obst; } $obst['apfel'] = 'gruen'; $obst = f($obst); vardump($obst); ?>
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: Call to undefined function vardump() in /in/YE1b5:9 Stack trace: #0 {main} thrown in /in/YE1b5 on line 9
Process exited with code 255.

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