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<?php function & do_something(& $arg) { $arg = 'func'; return $arg; } $a = 'init'; $b = do_something($a); $b = 'fin'; var_dump($a, $b); $x = 'init'; $y = & do_something($x); $y = 'fin'; var_dump($x, $y);

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43.86 ms | 402 KiB | 5 Q