If i have an array such as
[Yellow] => 1 [Red] => 2 [Blue] => 3
and then want to use these in a form INPUT with $options to make a dropdown selection, is it possible to use the color names Yellow/Red/Blue instead of the values 1/2/3?
currently the dropdown has 1, 2, 3 as the options instead of the names. The array is used elsewhere and is in the format for a reason.
You could use the array_flip method to swap the keys and values around
$array = array('Yellow' => 1, 'Red' => 2, 'Blue' => 3);
$flippedArray = array_flip($array);
// => [1] => 'Yellow', [2] => 'Red', [3] => 'Blue'
Then use the flippedArray as the options in your select element with the form helper
echo $this->Form->select('colours', $flippedArray);
Or you could combine the colours into a new array for the select element
$combinedArray = array_combine(array_keys($array), array_keys($array));
//=> [Yellow] => 'Yellow', [Red] => 'Red', [Blue] => 'Blue'
echo $this->Form->select('colours', $combinedArray);
In this way you could then use the value passed back from your form as the key of your orignal array if you needed to
