Remove items from cache

# Yac::delete

(PECL yac >= 1.0.0)

Yac::delete — Remove items from cache

### Description

public Yac::delete(string|array `$keys`, int `$ttl` = ?): bool

remove items from cache

### Parameters

`keys`

  string key, or array of multiple keys to be removed

`ttl`

  if delay is set, delete will mark the items to be invalid in ttl second.

### Return Values

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