Class Bicache

A two-level cache service

Wei\Base

Extended by

Wei\BaseCache

Extended by

Wei\Bicache

Namespace: Wei
Author: Twin Huang twinhuang@qq.com
Located at Bicache.php

Methods summary
`public mixed`	# `get( string $key, integer $expire = null, callable $fn = null )` Retrieve an item Retrieve an item Parameters `$key` The name of item `$expire` The expire seconds of callback return value `$fn` The callback to execute when cache not found Returns mixed Throws RuntimeException When set cache return false
`public boolean`	# `set( string $key, mixed $value, integer $expire = 0 )` Store an item Store an item Parameters `$key` The name of item `$value` The value of item `$expire` The expire seconds, defaults to 0, means never expired Returns boolean
`public boolean`	# `remove( string $key )` Remove an item Remove an item Parameters `$key` The name of item Returns boolean
`public boolean`	# `exists( string $key )` Check if an item is exists Check if an item is exists Parameters `$key` Returns boolean
`public boolean`	# `add( string $key, mixed $value, integer $expire = 0 )` Add an item Add an item Parameters `$key` The name of item `$value` The value of item `$expire` The expire seconds, defaults to 0, means never expired Returns boolean
`public boolean`	# `replace( string $key, mixed $value, integer $expire = 0 )` Replace an existing item Replace an existing item Parameters `$key` The name of item `$value` The value of item `$expire` The expire seconds, defaults to 0, means never expired Returns boolean
`public integer\|false`	# `incr( string $key, integer $offset = 1 )` Increment an item Increment an item Parameters `$key` The name of item `$offset` The value to increased Returns integer\|false Returns the new value on success, or false on failure
`public boolean`	# `clear( )` Clear all items Clear all items Returns boolean
`protected boolean`	# `needUpdate( string $key )` Check if the key need to update to the slave cache Check if the key need to update to the slave cache Parameters `$key` Returns boolean

Methods inherited from Wei\BaseCache
`__invoke(), decr(), getFileContent(), getMulti(), getNamespace(), processGetResult(), setMulti(), setNamespace()`

Methods inherited from Wei\Base
`__call(), __construct(), __get(), getOption(), setOption()`

Properties summary
`protected array`	`$providers`	# `array( 'master' => 'apc', 'slave' => 'fileCache', )`
`protected integer`	`$time` The seconds to update the slave cache The seconds to update the slave cache	# `5`

Properties inherited from Wei\BaseCache
`$namespace`

Properties inherited from Wei\Base
`$wei`

Magic properties summary
`public Wei\BaseCache`	`$master` The master(faster) cache service
`public Wei\BaseCache`	`$slave` The slave(slower) cache service