<?php
echo
"<pre class="
brush:php;toolbar:false
">"
;
$area
=
array
(
array
(
'id'
=>1,
'area'
=>
'北京'
,
'pid'
=>0),
array
(
'id'
=>2,
'area'
=>
'广西'
,
'pid'
=>0),
array
(
'id'
=>3,
'area'
=>
'广东'
,
'pid'
=>0),
array
(
'id'
=>4,
'area'
=>
'福建'
,
'pid'
=>0),
array
(
'id'
=>11,
'area'
=>
'朝阳区'
,
'pid'
=>1),
array
(
'id'
=>12,
'area'
=>
'海淀区'
,
'pid'
=>1),
array
(
'id'
=>21,
'area'
=>
'南宁市'
,
'pid'
=>2),
array
(
'id'
=>45,
'area'
=>
'福州市'
,
'pid'
=>4),
array
(
'id'
=>113,
'area'
=>
'亚运村'
,
'pid'
=>11),
array
(
'id'
=>115,
'area'
=>
'奥运村'
,
'pid'
=>11),
array
(
'id'
=>234,
'area'
=>
'武鸣县'
,
'pid'
=>21)
);
function
t(
$arr
,
$pid
=0,
$lev
=0){
static
$list
=
array
();
foreach
(
$arr
as
$v
){
if
(
$v
[
'pid'
]==
$pid
){
echo
str_repeat
(
" "
,
$lev
).
$v
[
'area'
].
"<br />"
;
$list
[] =
$v
;
t(
$arr
,
$v
[
'id'
],
$lev
+1);
}
}
return
$list
;
}
$list
= t(
$area
);
echo
"<hr >"
;
print_r(
$list
);
?>