Retrieve values from cache

# Yac::get

(PECL yac >= 1.0.0)

Yac::get — Retrieve values from cache

### 说明

public function Yac::get(string|array `$key`, int `&$cas` = `null`): mixed

Retrieve values from cache

### 参数

`key`

  string keys, or array of multiple keys.

`cas`

  if not `null`, it will be set to the retrieved item's cas.

### 返回值

mixed on success, false on failure

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