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| # Serendipity - a PHP Weblog/Blog software | ||
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| [Serendipity](http://s9y.org) is a PHP-powered weblog application which gives the user an easy way to maintain an online diary, weblog or even a complete homepage. While the default package is designed for the casual blogger, Serendipity offers a flexible, expandable and easy-to-use framework with the power for professional applications. | ||
| # Serendipity - A reliable, secure & extensible PHP blog | ||
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| [Serendipity](https://s9y.org) is a PHP-powered weblog engine which gives the user an easy way to maintain a blog. While the default package is designed for the casual blogger, Serendipity offers an expandable framework with the power for professional applications. |
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| <?php | ||
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| /** | ||
| * This class extends Cache_Lite and offers a cache system driven by a master file | ||
| * | ||
| * With this class, cache validity is only dependent of a given file. Cache files | ||
| * are valid only if they are older than the master file. It's a perfect way for | ||
| * caching templates results (if the template file is newer than the cache, cache | ||
| * must be rebuild...) or for config classes... | ||
| * There are some examples in the 'docs/examples' file | ||
| * Technical choices are described in the 'docs/technical' file | ||
| * | ||
| * @package Cache_Lite | ||
| * @author Fabien MARTY <fab@php.net> | ||
| */ | ||
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| require_once('Cache/Lite.php'); | ||
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| class Cache_Lite_File extends Cache_Lite | ||
| { | ||
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| // --- Private properties --- | ||
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| /** | ||
| * Complete path of the file used for controlling the cache lifetime | ||
| * | ||
| * @var string $_masterFile | ||
| */ | ||
| var $_masterFile = ''; | ||
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| /** | ||
| * Masterfile mtime | ||
| * | ||
| * @var int $_masterFile_mtime | ||
| */ | ||
| var $_masterFile_mtime = 0; | ||
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| // --- Public methods ---- | ||
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| /** | ||
| * Constructor | ||
| * | ||
| * $options is an assoc. To have a look at availables options, | ||
| * see the constructor of the Cache_Lite class in 'Cache_Lite.php' | ||
| * | ||
| * Comparing to Cache_Lite constructor, there is another option : | ||
| * $options = array( | ||
| * (...) see Cache_Lite constructor | ||
| * 'masterFile' => complete path of the file used for controlling the cache lifetime(string) | ||
| * ); | ||
| * | ||
| * @param array $options options | ||
| * @access public | ||
| */ | ||
| function __construct($options = array(NULL)) | ||
| { | ||
| $options['lifetime'] = 0; | ||
| parent::__construct($options); | ||
| if (isset($options['masterFile'])) { | ||
| $this->_masterFile = $options['masterFile']; | ||
| } else { | ||
| return $this->raiseError('Cache_Lite_File : masterFile option must be set !'); | ||
| } | ||
| if (!($this->_masterFile_mtime = @filemtime($this->_masterFile))) { | ||
| return $this->raiseError('Cache_Lite_File : Unable to read masterFile : '.$this->_masterFile, -3); | ||
| } | ||
| } | ||
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| /** | ||
| * Test if a cache is available and (if yes) return it | ||
| * | ||
| * @param string $id cache id | ||
| * @param string $group name of the cache group | ||
| * @param boolean $doNotTestCacheValidity if set to true, the cache validity won't be tested | ||
| * @return string data of the cache (else : false) | ||
| * @access public | ||
| */ | ||
| function get($id, $group = 'default', $doNotTestCacheValidity = false) | ||
| { | ||
| if ($data = parent::get($id, $group, true)) { | ||
| if ($filemtime = $this->lastModified()) { | ||
| if ($filemtime > $this->_masterFile_mtime) { | ||
| return $data; | ||
| } | ||
| } | ||
| } | ||
| return false; | ||
| } | ||
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| } |
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