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<?php $a = "hola"; function request($value,$callback){ if($callback){ call_user_func($callback,array("asd"=>&$a)); }else{ echo "NO_CALLBACK"; } } request($b,function($array){ $array['asd'] = "adios"; echo $a; });
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $b in /in/kR4af on line 15 Warning: Undefined variable $a in /in/kR4af on line 18

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