PHP - Select The Rows Like A Tree View

How can i select the last 3 rows in a table and order it by ASC. When i use DESC it displays the results in the wrong order.

$query24 = mysql_query("SELECT * FROM notifications WHERE to_id='$session' AND state='1' ORDER BY id DESC LIMIT 3 ");

So I have an array of IDs that I would only like to select from a database table instead of everything in the table.

How might I go about doing that?

Hello, i am trying to get my form to list usernames ascending as an option, but the select field just returns blank.

Here is my code:

Code: [Select]
/**
 * editUserForm - Displays the users database table in
 * a nicely formatted field table.
 */

function editUserForm(){
   $q = "SELECT * "
       ."FROM ".TBL_USERS." ORDER BY username ASC";
   $result = $database->query($q);

while ($row = mysql_fetch_assoc($result))
{
echo '<option value="'.$row["username"].'">'.$row["username"].'</option>';
}
}

Code: [Select]
              <form action="/" method="post">

                <div class="column">
                  <p>
                    <select name="user" id="user" placeholder="Select A User To Edit" class="{validate:{required:true}}">
                      <option>Select A User To Edit</option>
                      <? editUserForm(); ?>
                    </select>
                  </p>

                <div class="action_bar">
                  <input type="submit" class="button blue" value="Submit Post" />
                  <a href="#modal" class="modal button">Cancel</a>
                </div>

              </form>

All help is appreciated

 $result = mysql_query("SELECT *  FROM `friend_system` WHERE `friend_system_accepter` = '$myusername' ");
echo mysql_num_rows($result);

This displays the total rows in the table.

$result = mysql_query("SELECT COUNT(friend_system_accepter)  FROM `friend_system` WHERE `friend_system_accepter` = '$myusername' ");
echo mysql_num_rows($result);

This displays '1', which is incorrect.   I want to echo out the number of rows where 'friend_system_accepter' = $myusername   Thanks

Hello folks,   In trying to improve the user experience for my first WebApp I have decided to create two new tables - one a master file to contain a list of all stores, and the second a master file to contain a list of all products that are normally purchased - and I would like to use the values from these two tables as lookup values in dropdown listboxes, to which the user can also add new entries.   As it turns out, I'm stuck on the very first objective i.e. to lookup/pull-in the distinct values from the master tables.   The problem I'm having is that the query seems to return no rows at all...in spite of the fact that there a records in the table, and the exact same query (when run within the MySQL environment) returns all the rows correctly.   Is there something wrong with my code, or how can I debug to see whether or not the query is being executed?   Objective # 2, which is to allow new values to be entered into the dropdown listbox, and then inserted into the respective table is certainly waaay beyond my beginner skills, and I'll most certainly need to some help with that as well..so if I can get some code/directions in that regard it will be most appreciated.   Thank you.

<?php
   $sql = "SELECT DISTINCT store_name FROM store_master ORDER BY store_name ASC";

   $statement = $conn->prepare($sql);
   $statement->execute();

   $count = $statement->rowCount();                                    
   echo $count;

   // fetch ALL results pertaining to the query
   $result = $statement->fetchAll();

   echo "<select name=\"store_name\">";
   echo '<option value="">Please select...</option>';
   foreach($result as $row)
       {
          echo "<option value='" . $row['store_name'] . "'></option>";
       }
       echo "</select>";
?>

I am building a commenting system, it's sort of like facebooks comments. I have it right now so it loads the first last 3 comments in the database, and then there's a button to view all comments. I have it working fine, except when you add another comment to it, and then click the view all comments,


This is the script that loads onload showing the last 3 comments


$limit  = 3;

$query5 = mysql_query("SELECT * FROM sub_comments WHERE status_id='$id' ORDER BY id DESC LIMIT $limit");



This is the php script that runs when you click view more




//($start_id would be 3 in this case)

$query5 = mysql_query("SELECT * FROM sub_comments WHERE status_id='$comment_id' ORDER BY id DESC LIMIT $start_id, 1000");

so to try to show you what's happening:

OnLoad--------------------------------|---When you add more comments, (let's just say u add 1 comment before u click view comments)----
comment 9   --------------------------|   comment 10
comment 8   --------------------------|   comment 9
comment 7   --------------------------|   comment 8
------------------------------------------|   comment 7
----to be loaded onclick-------------|------What's loaded onclick---
comment 6   --------------------------|   comment 7
comment 5   --------------------------|   comment 6
comment 4   --------------------------|   comment 5
comment 3   --------------------------|   comment 4
comment 2   --------------------------|   comment 3
comment 1   --------------------------|   comment 2
------------------------------------------|   comment 1


(see how "comment 7" is being shown twice in a row)

Can somebody please have a look at this.  The Problem I am having is that only 1 entry for each month goes into the tree and for the life of me I can't figure out why.

Code: [Select]
$queryyp = "SELECT YEAR(date) as year, MONTHNAME(date) as month, title FROM monsterpost ORDER BY date DESC"; // query to get the rows you want in the order that you want them, with the year and monthname specifically selected as well
$resultyp = mysql_query($queryyp);
$last_heading = null; // remember the last heading (initialize to null)
while($rowyp = mysql_fetch_assoc($resultyp)){
$new_heading = $rowyp['year']; // get the column in the data that represents the heading
$new_subheading = $rowyp['month']; // get the column in the data that represents the subheading
if($last_heading != $new_heading){
// heading changed or is the first one
$last_heading = $new_heading; // remember the new heading
$last_subheading = null; // (re)initialize the subheading
// start a new section, output the heading here...
echo "<ol class=\"tree\"><li><label for=\"folder1\">{$rowyp['year']}</label> <input type=\"checkbox\" id=\"folder1\" /></li></ol>";
}
// subheading under each heading
if($last_subheading != $new_subheading){
// subheading changed or is the first one
$last_subheading = $new_subheading; // remember the new subheading
// start a new section, output the subheading here...
    echo "<ol><li><label for=\"subfolder1\">{$rowyp['month']}</label> <input type=\"checkbox\" id=\"subfolder1\" />";

}
// output each piece of data under a heading here...
echo "<ol><li class=\"file\">{$rowyp['title']}</li></ol></li></ol></li></ol>";
}

Hey guys i need to create a genealogy tree view in PHP and i have no idea on how to get started ... Is there existing class's for that out there? Any recomandations on the "how to"? Maby flash/xml is better? ... I am lost ...

Hi guys

I need help writing a php script

I have a table 'categories'

with fields
'id' 'cat_name' 'parent_id'

the 'parent_id' is just an the id field..

I want to create a way to have unlimited sub categories

so I can have

categorie -> sub-categories
categories  -> sub-categories  -> sub-categories
categories -> products

hi all.

I am working on a MLM project in which i have more than 30,000 members followed by the root member,i have to store member automatically in binary tree form like

1 is root
2 is child of 1
3 is child of 1

Then 4 is child of 2
5 is child of 2

and so on ......

i have to design database for that.

please help

Hi,

I wrote a piece of code for doing a recursive printing of all the leaf nodes.

But it is not moving beyond one or two levels.

Here is the code:

$root = array(
"paa" => array (
"adi1" => array (
"cir1" => array (
"aka",
"ra", "vinodh","dkido"
),

"cir2" => array (
   "muta",
"la"
),

"cir3" => array (
"ezut",
"telAm"
),

"cir4" => array (
"ati"
)
),

"adi2" => array (

"cir1" => array (
"paka",
"vaV"
),

"cir2" => array (
"mutaR",
"RE"
),

"cir3" => array (
"ula",
"ku"
)
)
                )
            );

function traverse($ar)
{

foreach($ar as $key=>$value)

          {

echo "inside loop of ".$key."<br/>";

if(is_array($value))
{
    return traverse($value);
}

else

{
     echo $key."==>".$value."<br/>";
}

   }


}

traverse($root);


The output I get is:

inside loop of paa
inside loop of adi1
inside loop of cir1
inside loop of 0
0==>aka
inside loop of 1
1==>ra
inside loop of 2
2==>vinodh
inside loop of 3
3==>dkido

It does not seem to visit the other nodes.

Anything I missed here ?

V

Hey guys,
i am a college student and working on a project of mlm ad want to display the binary income tree,and also calculate the income that is given to each node.
Please see the attachments for the binary tree structure and database table structure.
Thanks.

[attachment deleted by admin]

I am trying to count left node of a binary tree.I made a function but my result is always 3 .

Code:-

Code: [Select]
<?php
  include'config.php';  // Connect database

  function leftcount($node)   //Function to calculate leftcount
  {
    $sql = "SELECT lchild,rchild FROM tree WHERE parent = '$node'";
    $execsql = mysql_query($sql);
    $array = mysql_fetch_array($execsql);
    
    if(!empty($array['lchild']))
    {
      $count++;
      leftcount($array['lchild']);  
    } 
    if(!empty($array['rchild']))
    {
       $count++;
       leftcount($array['rchild']); 
    }
    
    $totalcount = 1 + $count;
    return $totalcount;
    
  }
  
  $parent = "2";
  $left = leftcount($parent);
  echo $left;
  
?>
Can someone please point the error in my logic ? I searched google but i only got scripts with classes and i don't want to use classes.

I am trying to display binary tree  level wise. Breadth-first tree traversal can be used in it.Can anyone point me towards its logic or point me towards a good tutorial.