Zend OPcache PHP API

accelerator_reset

Resets the contents of the OPcache shared memory storage. Note: This is not an immediate action. The shared memory storage is reset when a request arrives while the shared memory storage is not being used by a script.

Available since version 3.6

Description

boolean accelerator_reset (void)

Return Value

Returns TRUE unless the OPcache is disabled.

accelerator_get_status

Provides information on OPcache memory usage and cache statistics and the list of cached PHP scripts.

Available since version 4.0

Description

array accelerator_get_status (void)

Return Value

The returned array will contain the following elements:

• accelerator_enabled - boolean; TRUE if code acceleration is enabled, False otherwise

• cache_full -  boolean; TRUE if the OPcache cache is full

• memory_usage - array; contains information about OPcache memory usage with the following keys:

• used_memory - integer; bytes of memory used

• free_memory - integer; bytes of memory available for cache

• wasted_memory - integer; bytes of memory used by invalid or outdated code
  Wasted memory is reclaimed when the accelerator is reset, or when the percentage of wasted memory reaches the value of the <em>max_wasted_percentage</em> directive

• current_wasted_percentage - The percentage of wasted opcode cache memory out of total memory available

• accelerator_statistics - array; contains current opcode cache usage statistics, with the following keys:

• num_cached_scripts - integer; number of cached scripts

• max_cached_scripts - integer; maximal number of cached scripts

• hits - integer; number of cache "hits" - that is requests for files that had valid cache entries

• misses - integer; number of cache "misses" - that is requests for files which were not cached

• accelerator_hit_rate - float; ratio between opcode cache hits and misses

• blacklist_misses - integer; number of requests to blacklisted files

• blacklist_miss_ratio - float; ratio between hits and requests to blacklisted files

• last_restart_time - integer; timestamp of the last restart time

• scripts - array; Each key in the array is name of an accelerated script. Values are an array with information about the script, with the following keys:

• full_path - string; the full path to the script

• hits - integer; number of cache hits for this script

• memory_consumption - integer; bytes of memory used to cache this script

• last_used - string; string representation of the last time this script was fetched from cache. For example "Thu Jan 31 13:37:40 2008"

• last_used_timestamp - integer; UNIX timestamp of the last time this script was fetched from cache

• timestamp - integer; UNIX timestamp of when the script was cached