Memory cache is disblead by fefault because it is experemental and isn't tested enough. It can be enabled whit configuartion directive "soap.wsdl_cache = WSDL_CACHE_MEMORY" or "soap.wsdl_cache = WSDL_CACHE_BOTH" or derectly in SoapClent/Soa
pServer constructor: $ws = new SoapClient($wsdl, array("cache_wsdl"=>WSDL_CACHE_BOTH))
Disk and memory caches use the same TTL value - "soap.wsdl_cache_ttl".
Configuration directive "soap.wsdl_cache_limit" restricts the number of cached w
sdl files in memory. Adding new files into full memory cache will delete oldest files from it.
Note that, each PHP process or thread uses it's own memory cache.
