A simple database key/value store that can be used in place of variable_set and variable_get for persisting simple data, and even handles expiry times (in seconds) and asserting that data exists before using it.
- Persist data quickly without having to use session or cookies.
- Set an expiry time in seconds, or have the data persist until it's replaced / set again.
- Quickly check if a value exists using the
dx_cache_has() method.
Please note
This module, as with any other database-based utility, will not sanitise data for you, as a result of this, you should ensure that any inputted data is properly sanitised into a safe state before inserting new data, or printing stored data.
Usage
Simply set a value with dx_cache_set($key, $value, $time_to_live),
for example you can set an item that will expire in 30 seconds like this:
dx_cache_set("my.key", array('my' => 'value'), 30);
Then you can check if it exists (and is valid) using:
dx_cache_has('my.key'); // Return true or false
You can retrieve the value using:
$myvalue = dx_cache_get('my.key'); // Returns the value if valid, false if expired, and false if it does not exist.
You can also set a default value to return if the key is not set:
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