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<?php function some_func($arr, $key) { $val = $arr[$key]; unset($arr[$key]); return array_merge(array($key => $val), $arr); } $array = array( 'a' => 'rose', 'b' => 'tulip', 'c' => 'dahlia', 'd' => 'peony', 'e' => 'magnolia' ); var_dump(some_func($array, 'c'));
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