Php/docs/apcuiterator.construct

• PHP Manual
• APCUIterator
• Constructs an APCUIterator iterator object

APCUIterator::__construct

(PECL apcu >= 5.0.0)

APCUIterator::__construct — Constructs an APCUIterator iterator object

说明

public APCUIterator::__construct ([ mixed $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 null to 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_ACTIVE or APC_LIST_DELETED.

返回值

An APCUIterator object on success, or null on failure.

范例

Example #1 A APCUIterator::__construct() example

<?phpforeach (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