APCUIterator::__construct
(PECL apcu >= 5.0.0)
APCUIterator::__construct — Constructs an APCUIterator iterator object
说明
$search = NULL
[, int $format = APC_ITER_ALL
[, int $chunk_size = 100
[, int $list = APC_LIST_ACTIVE
]]]] )Constructs an APCUIterator object.
参数
-
search -
A PCRE regular expression that matches against APCu 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 or 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.
返回值
An APCUIterator object on success,
or NULL on failure.
范例
Example #1 A APCUIterator::__construct() example
<?php
foreach (new APCUIterator('/^counter\./') as $counter) {
echo "$counter[key]: $counter[value]\n";
apc_dec($counter['key'], $counter['value']);
}
?>
参见
- apcu_exists() - Checks if entry exists
- apcu_cache_info() - Retrieves cached information from APCu's data store