Access array element indexed by numerical string

Question

I have encountered something odd.

I have a php array, indexed with numerical keys. However it appears impossible to access any of the elements because php automatica

Answer 1

foreach ($array as $key => $value){
    var_dump($key);
    var_dump($value);
}

shows

string(1) "1"
string(3) "one"

But echo $array['"1"']; gives

E_NOTICE :  type 8 -- Undefined index: "1" -- at line 8

That's strange!