APCUIterator 类

    (PECL apcu >= 5.0.0)

    简介

    APCUIterator 类可以更轻松的迭代大型 APCu 缓存。 它所支持的逐步迭代功能对于遍历大型缓存非常有用，每次加锁后只会获取指定数量（默认 100 条）的缓存条目就会释放锁而非一直锁住整个缓存，以便其他活动对缓存进行操作。 此外，使用正则表达式匹配是更高效的，因为它已经被移到了 C 语言层级（C level）。

    类摘要

    class APCUIterator implements Iterator {
    /* 方法 */
    public function __construct(
        array|string|null $search = null,
        int $format = APC_ITER_ALL,
        int $chunk_size = 100,
        int $list = APC_LIST_ACTIVE
    )
    public function current(): mixed
    public function getTotalCount(): int
    public function getTotalHits(): int
    public function getTotalSize(): int
    public function key(): string
    public function next(): bool
    public function rewind(): void
    public function valid(): bool
    }

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    olliejones at gmail dot com
    14 hours ago
    To delete all variables from the data store with keys starting with a particular $prefix, do this.

<?php
foreach ( new APCUIterator( '/^' . preg_quote( $prefix, '/' ) . '/', APC_ITER_KEY ) as $item ) {
    apcu_delete( $item['key'] );
}
?>

It is good practice to choose a distinctive prefix for all key names. Some server configurations cause multiple domains' code to share one APCu cache, and distinctive prefixes prevent cache variable name collisions.
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