Categorizing MySQL result array - php

Question

I have a function that returns database results like so:
<?php print_r($homepagematches; ?>
Array
(
[0] => Array
(
[matchid] => 30
[matchtitle] => Testing This!
[matchaverage] => 1
[matchyoutubecode] => New Match
[casterid] => 1
[matchtype] =>
[matchdate] => 2013-05-24 02:19:49
[matchcasteryoutube] => http://youtube.com/huskystarcraft
[matchcaster] => HuskyStarcraft
)
[1] => Array
(
[matchid] => 27
[matchtitle] => Psy vs Camara
[matchaverage] => 1
[matchyoutubecode] => nefC9vkMfG8
[casterid] => 1
[matchtype] =>
[matchdate] => 2013-05-24 02:13:10
[matchcasteryoutube] => http://youtube.com/huskystarcraft
[matchcaster] => HuskyStarcraft
)
The function returns all matches within the last 3 days, What I am trying to figure out is how to reform the array so that I can display the matches under the day in which they were posted. I know a foreach loop is probably required for this, I just can't get my head around the concept I would need to implement.
$matchdate = '';
foreach($this->data['homepagematches'] as $match){
if($matchdate != date('m/d', strtotime($match['matchdate'])) || $matchdate == ''){
$homematch[date('m/d', strtotime($match['matchdate']))] = array(
"matchtitle" => $match['matchtitle']);
}
Basically I need the Array to look like:
Array
(
[05/24] => Array
(
[matchid] =>30
[matchtitle] => Testing This!
[matchyoutubecode] => New Match
[casterid] = 1
)
)

Answer 1

I think this should do it.
foreach($this->data['homepagematches'] as $match){
$tag = date('m/d', strtotime($match['matchdate']));
$data[$tag][] = array(
"matchid" => $match['matchid'],
"matchtitle" => $match['matchtitle'],
"matchyoutubecode" => $match['matchyoutubecode'],
"casterid" => $match['casterid']
);
}
print_r($data);

Answer 2

<?php
$MatchesByDate = array();
foreach($homepagematches as $match) {
list($matchdate,$time) = explode(" ",$match["matchdate"]); //split field into date and time
if( !isset($MatchesByDate[$matchdate]) )
$MatchesByDate[$matchdate] = array(); // If the array for that date doesnt exist yet make it
$MatchesByDate[$matchdate][] = $match; //Use the matchdate as a key and add to the array
}