How To Access Values In Associative Array Using PHP

Question

I have an array which is the result of a select query using Amazon SimpleDb.

Here is sample data when I print_r($result);

Array ( [0] => Array ( [N         


        

Answer 1

You need to recast the Array.

$newArray = array();
foreach ($result as $key=>$row)
{        
    foreach ($row['Attributes'] AS $row2)
    {
         $newArray[$key][$row2['Name']] = $row2['Value'];
    }       
}

EDIT: It depends on what you need to do - this is my preferred method if I plan on doing a lot of work with a resultset - I only need to iterate through the set once and then it's in a format where the data can be accessed quickly.

Answer 2

foreach ($result as $item) {
  foreach ($item['Attributes'] as $keyvalue) {
    if ($keyvalue['Name'] == 'test_id' || $keyvalue['Name'] == 'test_name') {
      echo $keyvalue['Value'];
    }
  }
}

Answer 3

The following will run trough the last part of your array by reference. Therefore edits that you make are reflected in the $result array.

foreach ($result[0]['Attributes'] as &$item) {
    if ($item['Name'] == 'test_id') // do something
}