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<?php $arr = [ "-1" => "item 1", "1" => "item 2", "\0-1" => "item 3", ]; print_r($arr); var_dump($arr); foreach ($arr as $k => $v) { print bin2hex($k) ."\n"; }
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [-1] => item 1 [1] => item 2 [-1] => item 3 ) array(3) { [-1]=> string(6) "item 1" [1]=> string(6) "item 2" ["-1"]=> string(6) "item 3" } 2d31 31 002d31

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