This is abit of an odd request I think, but I really can't figure out how to do it :((

I have an array like this:

```
$oldArray = array([0]=>'str1', [1]=>'str2', [2]=>'str3'...);
[edit:] $oldArray = explode(',',$_POST['something']); // a string from an ajax call

```

But I want to "rejig it" (Sorry, not very technical term there) to this:

```
$newArray = array('str1' => array(), 'str2'=>array(), 'str3'=>array() ... );
[edit:] What I'm actually trying to do is
        $_SESSION['bish']['bash'][$newArrayKEY]['bosh'] = somethingElse;

```

I really hope this is enough information to enable you guys to help me

Many thanks
Gem