To see how PHP is put together, in order to contribute new array functions... array_firstkey( $array ) array_lastkey( $array ) array_element_key( $array, $n ) array_firstvalue( $array ) array_lastvalue( $array ) array_element_value( $array, $n ) ...and to consider extending string character subscripting of the form $string{5} to support an optional second "length" parameter, a la... $string = "abcde"; echo $string{1,3}; // returns "bcd"
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