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<?php $a = 'foo'; $b = 'bar'; $array = [&$a, $b]; var_dump($array); array_map(function($item){ if ($item == 'foo') { $item = 'fizz'; } }, $array); var_dump($array);
Output for git.master, git.master_jit, rfc.property-hooks
array(2) { [0]=> &string(3) "foo" [1]=> string(3) "bar" } array(2) { [0]=> &string(3) "foo" [1]=> string(3) "bar" }

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