php: how to get associative array key from numeric index?

Question

If I have:

$array = array( \'one\' =>\'value\', \'two\' => \'value2\' );

how do I get the string one back from $ar

Answer 1

$array = array( 'one' =>'value', 'two' => 'value2' );
$keys  = array_keys($array);
echo $keys[0]; // one
echo $keys[1]; // two