79 lines
1.7 KiB
PHP
79 lines
1.7 KiB
PHP
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<?php
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/**
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* Swift Mailer Native memory runtime cache
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* Please read the LICENSE file
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* @author Chris Corbyn <chris@w3style.co.uk>
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* @package Swift_Cache
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* @license GNU Lesser General Public License
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*/
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require_once dirname(__FILE__) . "/../ClassLoader.php";
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Swift_ClassLoader::load("Swift_Cache");
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/**
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* Caches data in variables - uses memory!
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* @package Swift_Cache
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* @author Chris Corbyn <chris@w3style.co.uk>
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*/
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class Swift_Cache_Memory extends Swift_Cache
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{
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/**
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* The storage container for this cache
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* @var array
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*/
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protected $store = array();
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/**
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* The key which was last requested
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* @var string
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*/
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protected $requested;
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/**
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* Write data to the cache
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* @param string The cache key
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* @param string The data to write
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*/
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public function write($key, $data)
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{
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if (!isset($this->store[$key])) $this->store[$key] = $data;
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else $this->store[$key] .= $data;
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}
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/**
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* Clear the cached data (unset)
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* @param string The cache key
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*/
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public function clear($key)
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{
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$this->store[$key] = null;
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unset($this->store[$key]);
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}
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/**
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* Check if data is cached for $key
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* @param string The cache key
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* @return boolean
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*/
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public function has($key)
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{
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return array_key_exists($key, $this->store);
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}
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/**
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* Read data from the cache for $key
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* It makes no difference to memory/speed if data is read in chunks so arguments are ignored
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* @param string The cache key
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* @return string
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*/
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public function read($key, $size=null)
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{
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if (!$this->has($key)) return false;
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if ($this->requested == $key)
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{
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$this->requested = null;
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return false;
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}
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$this->requested = $key;
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return $this->store[$key];
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}
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}
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