PHP: Measure size in kilobytes of a object/array?

Question

• What\'s an appropriate way of measure a PHP objects actual size in bytes/kilobytes?

Reason for asking:
I am utilizing memcached for cache storage in

Answer 1

Well, since Memcached doesn't store raw objects (it actually stores the serialiezd version), you can do this:

$serializedFoo = serialize($foo);
if (function_exists('mb_strlen')) {
    $size = mb_strlen($serializedFoo, '8bit');
} else {
    $size = strlen($serializedFoo);
}