Memcached::get method is used when you need to retrieve an item from memcached by its key. A common use case for this function would be to fetch data that has been previously stored in cache, like user sessions, recently accessed database queries, or other time-intensive computations.
Example 1: Basic Get
This is a simple example of how to use the Memcached::get method.
In this example, we create a new Memcached instance and add a server. Then we try to get the value associated with "sample_key". If a value is found, it is printed; otherwise, we print "No value found.".
Example 2: Using the Get Function With a Callback
This example shows how you can pass a callback function to the get method. The callback will be executed if the key is not found in the cache.
In this example, if "sample_key" is not found in the cache, the callback function is executed, setting a default value which is then returned.
getmethod returns a value before using it to avoid null reference exceptions.
getfunctionality with a callback for keys that may not be present in the cache, to handle those cases gracefully.
Q: What happens if the key is not found in memcache? A: If the key is not found, Memcached::get will return FALSE. You should always check the return value before using it.
Q: Can I use Memcached::get for multiple keys?
A: Yes, for getting multiple keys at once, you can use the