Creating An Associative Multi Dimensional Array from loop in PHP - php

Question

How can I create an array like the following in PHP from a database result set using a loop:
Array
(
[T] => Array
(
[0] => Array
(
[id] => 1
[name] => Timer
)
[1] => Array
(
[id] => 2
[name] => Tub
)
)
[P] => Array
(
[0] => Array
(
[id] => 3
[name] => Paper
)
[1] => Array
(
[id] => 4
[name] => Puppy
)
)
)
You will notice that the array keys are a letter, which is taken from the 'name' value in the result set. The loop will be something like this:
while($result = $db->fetch($query) {
$key = $result['name']{0};
// your answer :-)
}

Answer 1

I think something like this should do it:
$sql = 'SELECT id, name FROM table';
$result = mysql_query( $sql);
$answer = array();
while( $row = mysql_fetch_assoc( $result))
{
$answer[ strtoupper($row['name'][0]) ][] = $row;
}
mysql_free_result( $result);
var_dump( $answer);
OR, to be more specific (if your query is returning more columns than just id and name):
while( $row = mysql_fetch_assoc( $result))
{
$answer[ strtoupper($row['name'][0]) ][] = array(
'id' => $row['id'],
'name' => $row['name']
);
}

Answer 2

$indexArray = array(); // Array from Example
while($result = $db->fetch($query) {
$key = $result['name']{0};
if(!isset($indexArray[$key])) {
$indexArray[$key] = array();
}
array_push($indexArray[$key], $result);
}

Answer 3

$results = array();
while($result = $db->fetch($query)) {
$key = strtoupper($result['name'][0]);
if(!isset($results[$key]))
$results[$key] = array();
$results[$key][] = $result;
}