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This article mainly introduces the PHP Infinitus classification method. Interested friends can refer to it. I hope it will be helpful to everyone.
The code is 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'>顶级分类</option> <?php echo $aa; ?> </select>
If you are using smarty
Add another
The code is as follows:
$smarty->assign('wuxian_class',$aa);
Just add this sentence to the html page
<select name="parent_id"> <option value='0'>顶级分类</option> {$wuxian_class} </select>
There is another question Note that $str must be a global line, otherwise there will be an error.
Extension of Infinitus classification:
We can write a function. Every time we call this function, we only need to pass in the array and data, and then we can call it Okay, here 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; }
Summary: The above is the entire content of this article, I hope it will be helpful to everyone's study.
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