PHP shortest/longest string length in array [duplicate]

Answer 1

Although in this case it is not advisable because you'll be traversing the array twice, you can also use array_reduce to compare each element against the rest. Like this:

 strlen($v)) return $k;
        return $v;
}
function minlen($k,$v) {
        if ($k == '') return PHP_INT_MAX;
        if (strlen($k) < strlen($v)) return $k;
        return $v;
}
?>

If you are using PHP 5.3.0+ you can take advantage of closures:

 strlen($v)) ? $k : $v; }
        ));

   $min_l = strlen(array_reduce($data,
                function ($k,$v) {
                        if (!$k) return PHP_INT_MAX;
                        return (strlen($k) < strlen($v)) ? $k : $v;
                }
        ));

echo "The longest word is $max_l characters, while the shortest is $min_l\n";
?>