function memcache_variable_set in Memcache API and Integration 6

Re-implementation of variable_set() that writes through instead of clearing.

2 calls to memcache_variable_set()

cache_clear_all in ./memcache.inc

Expire data from the cache. If called without arguments, expirable entries will be cleared from the cache_page and cache_block tables.

memcache_wildcards in ./memcache.inc

Utilize multiget to retrieve all possible wildcard matches, storing statically so multiple cache requests for the same item on the same page load doesn't add overhead.

File

./memcache.inc, line 472

Code

function memcache_variable_set($name, $value) {
  global $conf;

  // If the value appears unchanged, do nothing.
  if (isset($conf[$name]) && $conf[$name] === $value) {
    return;
  }
  $serialized_value = serialize($value);
  db_query("UPDATE {variable} SET value = '%s' WHERE name = '%s'", $serialized_value, $name);
  if (!db_affected_rows()) {
    @db_query("INSERT INTO {variable} (name, value) VALUES ('%s', '%s')", $name, $serialized_value);
  }

  // If the variables are cached, get a fresh copy, update with the new value
  // and set it again.
  if ($cached = cache_get('variables', 'cache')) {
    $variables = $cached->data;
    $variables[$name] = $value;
    cache_set('variables', $variables);
  }

  // If the variables aren't cached, there's no need to do anything.
  $conf[$name] = $value;
}