Create an assoc array with equal keys and values from a regular array

Question

I have an array that looks like

$numbers = array(\'first\', \'second\', \'third\');

I want to have a function that will take this array as

Answer 1

This should do it.

function toAssoc($array) {
    $new_array = array();
    foreach($array as $value) {
        $new_array[$value] = $value;
    }       
    return $new_array;
}