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

The code below sorts the PHP hash array by string length of the key, then by the case-sensitive key itself, both in ascending order, using a lambda function:

uksort($yourArray, function ($a, $b) { 
   return (strlen($a) == strlen($b) ? strcmp($a, $b) : strlen($a) - strlen($b));
});

This code does the same in reverse order:

uksort($yourArray, function ($b, $a) { 
   return (strlen($a) == strlen($b) ? strcmp($a, $b) : strlen($a) - strlen($b));
});