CODEWITHSUNDEEP
phpcodeigniterforeach
witty
witty

Reputation: 95

how to add another attribute using foreach loop to an array of rows

I am using a foreach loop on an array of rows in a model file in CodeIgniter. What i want to do is reflect the changes i make in every row ,in the foreach loop ,to the original array.

        $unique = $this->db->get_where('list', array('item_index' => $item));
        foreach ($unique->result_array() as $row)

            {
                $row["status"]= "Not Unique";
            if($row["bid_amount"]==$amount)
                {
                    if($count==0){ $row["status"]="Unique and Final"; }
                    else {$row["status"]="Unique but Not Final"; }

                }

                $count++;

            }   
        return $unique;

I am adding another attribute to each row here and i want to echo this attribute corresponding to each row in a view file. But i am getting error Undefined index: status. How can i possibly reflect the changes in the array to be returned.

Upvotes: 2

Views: 3373

Answers (2)

Jordan Arsenault
Jordan Arsenault

Reputation: 7388

Assign the result_array() to a variable, iterate over it, but change the original array and not the local one. PHP's foreach comes in two flavours:

foreach($arr as $value) and foreach($arr as $key => $value)

Try this:

$results = $unique->result_array();
foreach ($results as $rK => $rV){
    $results[$rK]["status"]= "Not Unique";
    //other stuff.
}
return $results;

Alternatively, you can pass by reference:

foreach ($results as &$result) {
    $result['status'] = "Not Unique";
}

See the PHP docs on arrays. Specifically Example 10.

Upvotes: 3

Erik
Erik

Reputation: 2264

In your foreach the $row refers to a variable that's local to the loop. Thus changing it does not affect the data in $unique.

Upvotes: 1

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