addValue() protected abstract method
Stores a value identified by a key into cache if the cache does not contain this key.
This method should be implemented by child classes to store the data in specific cache storage.
protected abstract boolean addValue ( $key, $value, $duration ) | ||
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$key | string |
The key identifying the value to be cached |
$value | mixed |
The value to be cached. Most often it's a string. If you have disabled $serializer, it could be something else. |
$duration | integer |
The number of seconds in which the cached value will expire. 0 means never expire. |
return | boolean |
True if the value is successfully stored into cache, false otherwise |
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