<?php $a = [1]; foreach ((isset($a["key"]) ? [&$a["key"]] : [&$a])[0] as &$v) { var_dump($a); $v++; } var_dump($a); $a = [1]; $x = (isset($a["chunks"]) ? [&$a["chunks"]] : [&$a]); foreach ($x[0] as &$v) { var_dump($a); $v++; } var_dump($a);
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