/* foreach example 4: multi-dimensional arrays */
$a = array();
$a[0][0] = "a";
$a[0][1] = "b";
$a[1][0] = "y";
$a[1][1] = "z";

foreach ($a as $v1) {
    foreach ($v1 as $v2) {
        echo "$v2\n";
    }
}

$posts = //wherever you get your posts from
foreach ($posts as $post) {
    //whatever echo-ing or whathaveyou to output a post, using data contained in variable $post
}

$post1 = array($post1title, $post1uid, $post1time, $post1msg);
$post2 = array($post2title, $post2uid, $post2time, $post2msg);
$posts = array($post1, $post2);

$a[0][0] = "PostTitle";
$a[0][1] = "Username";
$a[0][2] = "PostTime";
$a[1][0] = "PostTitle2";
$a[1][1] = "Username2";
$a[1][2] = "PostTime2";
$a[2][0] = "PostTitle3";
$a[2][1] = "Username3";
$a[2][2] = "PostTime3";

foreach( $a as $index => $values )
{
    echo $values[0].$values[1].$values[2];
}

$a[0]['title'] = "PostTitle";
$a[0]['username'] = "Username";
$a[0]['time'] = "PostTime";
$a[1]['title'] = "PostTitle2";
$a[1]['username'] = "Username2";
$a[1]['time'] = "PostTime2";
$a[2]['title'] = "PostTitle3";
$a[2]['username'] = "Username3";
$a[2]['time'] = "PostTime3";

foreach ($a as $outIndex => $values )
{
    foreach( $values as $index => $value )
    {
        echo $index."-".$outIndex." = ".$value."<br />\n";
    }
}

title-0 = PostTitle
username-0 = Username
time-0 = PostTime
title-1 = PostTile2
username-1 = Username2
time-1 = PostTime2
title-2 = PostTitle3
username-2 = Username3
time-2 = PostTime3

$posts = new postsClass();
foreach( $a as $outIndex => $values )
{
    $post = new PostClass();
    foreach($values as $index => $value )
    {
        $post->{$index} = $value;
    }
    $posts->list[$outIndex] = $post;
}