PHP - sort hash array by key length

Question

I\'ve found a few answers to sorting by value, but not key.

What I\'d like to do is a reverse sort, so with:

    $nametocode[\'reallylongname\']=\'12         


        

Answer 1

In PHP7+ you can use uksort() with spaceship operator and anonymous function like this:

uksort($array, function($a, $b) {
    return strlen($b) <=> strlen($a);
});