[UPHPU] grab named index by position

[Wade Preston Shearer]

Is it possible to grab a named index by position? My test is  
indicating not.

Example:

$things = array('food' => 'toast', 'location' => 'paris', 'mood' =>  
'happy');


echo $things['location']

…prints "paris"


echo $things[1];

…prints nothing
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