APCIterator
With MAMP (using PHP 5.3.5 and APC 3.1.7) passing an array with multiple regex strings as $search arg always yields an empty APCIterator. Whereas passing a single string regex works. (Note: I only tried cache type 'user'.)
Workaround: Concatenated all regexes to single one with alternation. Example:
<?php
$results = new APCIterator('user', '/^('.implode('|', $patterns).')');
?>
APCIterator::__construct
(PECL apc >= 3.1.1)
APCIterator::__construct — Constructs an APCIterator iterator object
Description
public APCIterator::__construct
( string
$cache
[, mixed $search = null
[, int $format
[, int $chunk_size = 100
[, int $list
]]]] )Constructs an APCIterator object.
Parameters
-
cache -
The cache type, which will be user or file.
-
search -
A PCRE regular expression that matches against APC key names, either as a string for a single regular expression, or as an array of regular expressions. Or, optionally pass in
NULLto skip the search. -
format -
The desired format, as configured with one ore more of the APC_ITER_* constants.
-
chunk_size -
The chunk size. Must be a value greater than 0. The default value is 100.
-
list -
The type to list. Either pass in
APC_LIST_ACTIVEorAPC_LIST_DELETED.
Return Values
An APCIterator object on success,
or NULL on failure.
Examples
Example #1 A APCIterator::__construct() example
<?php
foreach (new APCIterator('user', '/^counter\./') as $counter) {
echo "$counter[key]: $counter[value]\n";
apc_dec($counter['key'], $counter['value']);
}
?>
See Also
- apc_exists() - Checks if APC key exists
- apc_cache_info() - Retrieves cached information from APC's data store
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User Contributed Notes
APCIterator::__construct - [3 notes]
petabyte ¶
1 year ago
rodney dot rehm at medialize dot de ¶
1 year ago
new APCIterator('file'); only lists the files loaded within the current process-scope. It is thus not possible to check if a given file already resides in the op-code cache.
(PHP5.3.6 APC3.1.9)
Anti Veeranna ¶
2 years ago
Iterating (and specifically using current()) does not expunge cache entries for which $ttl has passed, you need to use apc_fetch to get rid of stale entries.