Php city-to-city Association sorting program _ PHP Tutorial

Php city Association classification sorting program. A user wrote a php classification program for local-City linkage. for details, refer. Write a function and copy the data code as follows: $ arrayarray (0 array (, Hebei), 1 array (, Beijing), a php classification program jointly written by a netizen in a city, for more information, see.

Write a function

The code is as follows:
$ Array = array ( 0 => array ("", "Hebei "), 1 => array ("", "Beijing "), 2 => array (0, "Baoding "), 3 => array (1, "Haidian "), 4 => array (3, "Zhongguancun "), 5 => array (2, "Bozhou ") );

The returned result is as follows:
Hebei
-Baoding
-- Bozhou
Beijing
-Haidian
-- Zhongguancun

The code is as follows:
Function typeArray ($ array ){ $ Con = null; Foreach ($ array as $ k => $ v ){ $ Na [$ k] = is_numeric ($ v [0])? $ Na [$ v [0]. $ k. "|": $ k. "| "; } Asort ($ na ); Foreach ($ na as $ k => $ v ){ $ S = substr_count ($ v, "| "); $ Con. = str_repeat ("-", ($ S-1). $ array [$ k] [1]. "n "; } Return $ con; }

Bytes. Write a function and run the data code $ array = array (0 = array (, Hebei), 1 = array (, Beijing ),...