The method of realizing Smarty template infinite pole classification by PHP _php example

This article describes the method of realizing the infinite pole classification of smarty template in PHP. Share to everyone for your reference, specific as follows:

<?php $conn = mysql_connect ("localhost", "admin", "admin");
mysql_select_db ("People_shop", $conn);
mysql_query ("SET NAMES ' UTF-8 '");
$class _arr=array ();
$sql = "SELECT * from Ecs_brand ORDER by brand_id ASC";
$query = mysql_query ($sql); while ($row = Mysql_fetch_array ($query)) {$class _arr[] = Array ($row [' brand_id '], $row [' Brand_Name '], $row [' parent_id ']
, $row [' sort_order ']);
  function Dafenglei_select ($m, $id, $index) {global $class _arr;
  Global $str;
  $n = Str_repeat ("    ", $m);
  $n = $m; For ($i =0 $i <count ($class _arr), $i + +) {if ($class _arr[$i] [' 2 ']== $id] {if ($class _arr[$i] [' 0 ']== $index) {$ str.= "<option value=\" ". $class _arr[$i][0]." \ "selected=\" selected\ ">". $n $class _arr[$i][1]. "
      </option>\n "; }else{$str. = "<option value=\"    "$class _arr[$i][0]." \ > $n. $class _arr[$i][1]. "
      </option>\n ";    
    Dafenglei_select ($m +1, $class _arr[$i][0], $index);
} return $STR; } $AA = dAfenglei_select (1,0,0);?> <select name= "parent_id" > <option value= ' 0 ' > top class </option> <?php

 echo $aa;?> </select>

If it's in Smarty,
Add one more.

Copy Code code as follows:

$smarty->assign (' Wuxian_class ', $AA);

Just add this to the HTML page.

<select name= "parent_id" >
<option value= ' 0 ' > top class </option>
{$wuxian _class}
</ Select>

There is also a problem to note $str must be global line, otherwise there will be errors.

Extension of the infinite polar classification:

We can write a function, each time we call this function we just need to pass in the array and data, we can call, the following is a method I wrote.

Function Dafenglei_select (& $arr =array (), $m, $id, $index)
{  
  //global $class _arr;
  Global $str;
   $n = Str_repeat ("", $m);
  $n = $m;
  For ($i =0 $i <count ($arr); $i + +) {
    if ($arr [$i] [' 2 ']== $id] {
      if ($arr [$i] [' 0 ']== $index] {
        $str. = "< Option Value=\ "". $arr [$i][0]. " \ "selected=\" selected\ ">". $n. $arr [$i][1]. " </option>\n ";
      } else{
        $str. = "<option value=\" ". $arr [$i][0]." \ > $n. $arr [$i][1]. " </option>\n ";
      }
      Dafenglei_select ($arr, $m +1, $arr [$i][0], $index);
    }
   return $str;
}

The call only needs to do this:

Copy Code code as follows:

$AA = Dafenglei_select ($class _arr,0,0,0);

I hope this article will help you with the PHP program design based on Smarty template.