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<?php $user = [ "address" => [ "country" => "jp", "prefecture" => "Hokkaido", ], ]; var_dump(compact($user));
Output for git.master, git.master_jit, rfc.property-hooks
Warning: compact(): Undefined variable $jp in /in/s23LY on line 9 Warning: compact(): Undefined variable $Hokkaido in /in/s23LY on line 9 array(0) { }

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