How to retrieve categories and child categories (unlimited level) to table with PHP

Question

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i have categories table .. (ID,ParentID,Title,Ordering)

cat1
--cat1.1
--cat1.2
---cat1.2.2
---cat1.2.3
---cat1.2.4
----Unlimited level
--cat1.3
cat2
cat3

i followed this wonderful tutorials

Infinite dynamic Multi-level nested category with PHP and MySQL – Roy Tutorials

all thing is good but,
1- i need to put the result in table . like this [image]
2- i need to put the result in select box.like this [image]

thank you

What I have tried:

i followed this wonderful tutorials

Posted 26-Dec-16 6:02am

Golden Basim

Updated 21-Jun-18 19:34pm

v3

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Comments

Kornfeld Eliyahu Peter 26-Dec-16 13:26pm

No table, neither select box is for hierarchical data!!!

Golden Basim 26-Dec-16 13:33pm

what i do to show them in table ? ( like joomla categories page )

Kornfeld Eliyahu Peter 26-Dec-16 13:37pm

I do not know Joomla, but by instinct I would use an ordered/unordered list...
With table to get the same effect you have to inject a computed indentation according to the level...

Kornfeld Eliyahu Peter 26-Dec-16 13:40pm

By the way - how you have the data? In database?

Golden Basim 26-Dec-16 13:40pm

yes ..
i need to make like this
http://joomtraining.com.au/assets/categoryManager.jpg

3 solutions

Solution 3

<?php
//fetc.php
$connect = mysqli_connect("localhost", "root", "", "shopp");
$query = " SELECT * FROM maincategory ";
$result = mysqli_query($connect, $query);
//$output = array();
while($row = mysqli_fetch_array($result))
{
$sub_data["id"] = $row["id"];
$sub_data["category"] = $row["category"];
$sub_data["text"] = $row["category"];
$sub_data["p_id"] = $row["p_id"];
$data[] = $sub_data;
}
foreach($data as $key => &$value)
{
$output[$value["id"]] = &$value;
}
foreach($data as $key => &$value)
{
if($value["p_id"] && isset($output[$value["p_id"]]))
{
$output[$value["p_id"]]["nodes"][] = &$value;
}
}
foreach($data as $key => &$value)
{
if($value["p_id"] && isset($output[$value["p_id"]]))
{
unset($data[$key]);
}
}
echo json_encode($data);
/*echo '

';
print_r($data);
echo '

';*/

?>

$(document).ready(function(){
$.ajax({
url: "fetc.php",
method:"POST",
dataType: "json",
success: function(data)
{
$('#treeview').treeview({data: data});
}
});

});

Posted 21-Jun-18 19:35pm

Dipak384

Solution 1

If i understand you well, you'll need recursive function to load hierarchical data. Please see:
php - Load hierarchical data from database into array - Stack Overflow[^]
php - Convert a series of parent-child relationships into a hierarchical tree? - Stack Overflow[^]

Posted 27-Dec-16 1:00am

Maciej Los

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Golden Basim · Accepted Answer · 2016-12-27T09:12:00

After many, many attempts

function buildCatTable($parent = 0 ,$level=0) {
       global $con;
       $getStmt = $con->prepare("SELECT * FROM productscatagories WHERE ParentID = ? ORDER BY ParentID,Ordering,ID ");
       $getStmt->execute(array($parent));
       $cats = $getStmt->fetchAll();

       foreach($cats as $cat) {
           echo "<tr>"."<td>". str_repeat("| - -  ".str_repeat('&nbsp;', $level), $level). $cat['Title'] . "</tr>"."</td>";
           buildCatTable($cat['ID'] ,$level +1);
       }

   }