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<?php $a = function(){ return "a"; }; var_dump(&$a());
Output for 5.3.0 - 5.3.18, 5.4.0 - 5.4.8
Fatal error: Can't use function return value in write context in WcUkS on line 3
Process exited with code 255.
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167.05 ms | 1395 KiB | 35 Q