3v4l.org

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<?php $array1 = array('description' => 'desc bla bla bla', 'summary' => 'summary bla bla bla', 'usage' => 'usage bla bla bla'); $array2 = array('description', 'summary'); $array_intersected = array_flip(array_intersect(array_flip($array1), $array2)); var_dump($array_intersected);

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