cache.php error line 48

what version of wordpress are you running?

Whats the specifc error?

Have you checked your error logs yet?

might have searched:

http://wordpress.org/search/Allowed+memory+size+exhausted?forums=1

Hey, I got a solution that worked for me. In order to do that you have to modify a couple of files.

First, open your config file (wp-config.php), and a line like this;

define ('DISABLE_CACHE', '1');

It has to be before the require_once call!

Generally, this would turn the cache off. However, there are two small bugs that prevent this feature for working. In order to fix them, open your wp-includes/cache.php file. Find the wp_cache_replace and the wp_cache_set functions. Those are the ones that cause the trouble, and that’s because of the serialize|unserialize calls. We have disabled the caching, but nevertheless those functions are not aware of it, because the serialize|unserialize calls are executed before it. So, here’s the patch: add the following line:

function wp_cache_set($key, $data, $flag = '', $expire = 0) {

	if (defined('DISABLE_CACHE'))
		return;

	if ( ! defined('ENABLE_CACHE') )
		return;

	global $wp_object_cache;

	$data = unserialize(serialize($data));

	return $wp_object_cache->set($key, $data, $flag, $expire);
}

That’s it. Remember to do this to both functions wp_cache_replace and the wp_cache_set