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msd/vendor/desarrolla2/cache/docs/implementations/mysqli.md

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+# Mysqli
+
+Cache to a [MySQL database](https://www.mysql.com/) using the
+[mysqli](http://php.net/manual/en/book.mysqli.php) PHP extension.
+
+You must pass a `mysqli` connection object to the constructor.
+
+``` php
+<?php
+    
+use Desarrolla2\Cache\Mysqli as MysqliCache;
+
+$db = new mysqli('localhost');
+$cache = new MysqliCache($db);
+```
+
+### Options
+
+| name       | type      | default |                                       |
+| ---------  | ----      | ------- | ------------------------------------- |
+| initialize | bool      | true    | Enable auto-initialize                |
+| ttl        | int       | null    | Maximum time to live in seconds       |
+| prefix     | string    | ""      | Key prefix                            |
+
+#### Initialize option
+
+If `initialize` is enabled, the cache implementation will automatically create
+a [scheduled event](https://dev.mysql.com/doc/refman/5.7/en/event-scheduler.html).
+
+```
+DELIMITER ;;
+
+CREATE TABLE IF NOT EXISTS `cache` (`key` VARCHAR(255), `value` TEXT, `ttl` INT UNSIGNED, PRIMARY KEY (`key`));;
+
+CREATE EVENT `apply_ttl_cache` ON SCHEDULE 1 HOUR 
+DO BEGIN
+    DELETE FROM `cache` WHERE `ttl` < NOW();
+END;;
+```
+
+In production it's better to disable auto-initialization and create the event
+explicitly when setting up the database. This prevents a `CREATE TABLE` and
+`CREATE EVENT` query on each request. 
+
+### Packer
+
+By default the [`SerializePacker`](../packers/serialize.md) is used.