aa
array(14) {
  [0]=>
  string(0) ""
  [1]=>
  string(4) "1891"
  [2]=>
  string(4) "3565"
  [3]=>
  string(4) "3596"
  [4]=>
  string(4) "3655"
  [5]=>
  string(4) "3656"
  [6]=>
  string(4) "3657"
  [7]=>
  string(4) "3658"
  [8]=>
  string(4) "3663"
  [9]=>
  string(4) "3871"
  [10]=>
  string(4) "3885"
  [11]=>
  string(4) "3906"
  [12]=>
  string(4) "3907"
  [13]=>
  string(4) "3908"
}
key:7<br>0<pre>Array
(
)
</pre>