?
Solved

Manually reoder a php array

Posted on 2011-02-18
3
Medium Priority
?
229 Views
Last Modified: 2012-06-01
I have a page where users select check boxes of data and then sent to a confirmation page.
On the confirmation page the data is presented to them and as each item is displayed there are UP and DOWN arrows to reorder their selections.




What is the best way to accomplish this with php?

here is what i have so far, but it doesnt work please help!

I attached code below

I should mention that the data is caputured on the confirmation page using $_GET

/*
$selectedBets looks like this:
array(3) {
  [0]=>
  string(5) "XXX_5"
  [1]=>
  string(5) "XXX_7"
  [2]=>
  string(5) "XXX_6"
}


************************
$itemToMove is sent through a querystring looking like

currentArrayIndex_UP|DOWN

for example: if i wanted to move index 0 to index 1 
 $itemToMove = 0_DOWN

if i wanted to move index 2 to index 1 
 $itemToMove = 2_UP


*/
function array_Reorder($selectedBets, $itemToMove){
    
    $tempArr = explode("_",$itemToMove);
    $oldKey = $tempArr[0];
    $action = strtoupper($tempArr[1]);
    $newKey = null;
    
    
    $tmpNewArr = array();
    echo "<br>action:$action<Br>";
    echo "old key:$oldKey<Br>";
    

    $tmpNewKey = $oldKey;             
    if($action == "UP"){
         $tmpNewKey = $tmpNewKey - 1;
        $tmpNewArr[$tmpNewKey] = $selectedBets[$oldKey];
        
    }else if ($action == "DOWN"){
         $tmpNewKey = $tmpNewKey + 1;  
         $tmpNewArr[$tmpNewKey] = $selectedBets[$oldKey];
    }else{
          return $selectedBets;
    }
    
    echo "new key:$tmpNewKey<Br><br>"; 
    
    
    
    foreach($selectedBets as $key => $bets){
         
        echo "$key == $tmpNewKey<br>";
        $xKey = $key;
        if($key == $tmpNewKey){
          //skip this entry..we added it above manually
              if($action == "UP"){
                    //echo $key+1 . "up<br>";
                    $xKey = $xKey + 1;
                    $tmpNewArr[$xKey] = $bets; 
                    echo ($xKey). "--" . $bets . "<br>";
                    
              }else if ($action == "DOWN"){
                    $xKey = $xKey -1;
                     $tmpNewArr[$xKey] = $bets; 
                     echo ($xKey) . "--" . $bets . "<br>";
              }
         }else{
             //$tmpNewArr[$key] = $bets;
             
             
             
         }
         if($key == (count($selectedBets)-1)){break;}
    }
    
        //ksort($tmpNewArr);
        echo "<pre>"; var_dump($tmpNewArr);echo "</pre>";
        return $tmpNewArr;
    
}

Open in new window

0
Comment
Question by:xtreme109
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
3 Comments
 
LVL 111

Expert Comment

by:Ray Paseur
ID: 34926196
You might find something in jQuery that will do this.  Or you might just let the client place a numeric order into the original form showing which bets come in what order.
0
 
LVL 11

Expert Comment

by:VanHackman
ID: 34926209
You are doing it in the difficult way...

First sort the items directly in the client with javascript and after they are sorted, save the final positions with php...

Doing it in his way is not only more efficient, is also more visual appealing...

So all that you need is:

http://jqueryui.com/demos/sortable/
http://www.shopdev.co.uk/blog/sortable-lists-using-jquery-ui/

Just edit the second example to submit the data to your php file instead of storing it in a cookie, and you are done...

Kind regards,
Oxyge+ Team

0
 
LVL 27

Accepted Solution

by:
Lukasz Chmielewski earned 500 total points
ID: 34926513
Or if you want this function to work I guess this would do:

<?php

//$selectedBets looks like this:
$selectedBets = array("XXX_5","XXX_7","XXX_6");
//}

/*
************************
$itemToMove is sent through a querystring looking like

currentArrayIndex_UP|DOWN

for example: if i wanted to move index 0 to index 1 
 $itemToMove = 0_DOWN

if i wanted to move index 2 to index 1 
 $itemToMove = 2_UP


*/
function array_Reorder($selectedBets, $itemToMove){
    
    $tempArr = explode("_",$itemToMove);
    $oldKey = $tempArr[0];
    $action = strtoupper($tempArr[1]);
    $newKey = null;
    
    
    $tmpNewArr = array();
    echo "<br>action:$action<Br>";
    echo "old key:$oldKey<Br>";
    

    $tmpNewKey = $oldKey;             
    if($action == "UP"){
         $tmpNewKey = $tmpNewKey - 1;
        $tmpNewArr[$tmpNewKey] = $selectedBets[$oldKey];
        
    }else if ($action == "DOWN"){
         $tmpNewKey = $tmpNewKey + 1;  
         $tmpNewArr[$tmpNewKey] = $selectedBets[$oldKey];
    }else{
          return $selectedBets;
    }
    
    echo "new key:$tmpNewKey<Br><br>"; 
    
    $tmpNewArr = $selectedBets;
    
    $val = $tmpNewArr[$tmpNewKey];    
    //echo"$val";
    
    foreach($tmpNewArr as $key => $bets){
         
        //echo "$key -> $bets<br>";

        //$xKey = $key;
        if($key == $tmpNewKey){

            $tmpNewArr[$tmpNewKey] = $tmpNewArr[$oldKey];
            $tmpNewArr[$oldKey] = $bets;
            break; 

         }else{
         $tmpNewArr[$key] = $bets;
             
         }
         //if($key == (count($selectedBets)-1)){break;}
                             print_r($tmpNewArr);echo"<br/><br/>";
    }
    
        //ksort($tmpNewArr);
        //echo "<pre>"; print_r($tmpNewArr);echo "</pre>";
        return $tmpNewArr;
    
}

print_r($selectedBets);
$selectedBets = array_Reorder($selectedBets, "1_UP");
print_r($selectedBets);
?>

Open in new window

0

Featured Post

7 Extremely Useful Linux Commands for Beginners

Just getting started with Linux? Here's a quick start guide that has 7 commands that we believe will come in handy.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Password hashing is better than message digests or encryption, and you should be using it instead of message digests or encryption.  Find out why and how in this article, which supplements the original article on PHP Client Registration, Login, Logo…
Today, the web development industry is booming, and many people consider it to be their vocation. The question you may be asking yourself is – how do I become a web developer?
The viewer will learn how to count occurrences of each item in an array.
The viewer will learn how to create and use a small PHP class to apply a watermark to an image. This video shows the viewer the setup for the PHP watermark as well as important coding language. Continue to Part 2 to learn the core code used in creat…
Suggested Courses

752 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question