插件如何工作 · smarty3中文手冊

<table summary="Header navigation table" width="100%" border="0" cellpadding="0" cellspacing="0"><tr><th colspan="3" align="center">Smarty - the compiling PHP template engine</th></tr><tr><td width="25%" align="left" valign="bottom"><a href="plugins.html" accesskey="P">Prev</a></td><td width="50%" align="center" valign="bottom">Chapter 16. Extending Smarty With Plugins</td><td width="25%" align="right" valign="bottom"><a href="plugins.writing.html" accesskey="N">Next</a></td></tr></table> # How Plugins Work [插件如何工作] Plugins are always loaded on demand. Only the specific modifiers, functions, resources, etc invoked in the templates scripts will be loaded. Moreover, each plugin is loaded only once, even if you have several different instances of Smarty running within the same request. Pre/postfilters and output filters are a bit of a special case. Since they are not mentioned in the templates, they must be registered or loaded explicitly via API functions before the template is processed. The order in which multiple filters of the same type are executed depends on the order in which they are registered or loaded. The plugins directory can be a string containing a path or an array containing multiple paths. To install a plugin, simply place it in one of the directories and Smarty will use it automatically. 插件總是按需加載。只有在模板腳本中調用特定的調節器、函數、資源插件等時才會自動加載。此外，每個插件只加載一次，即便在同一個請求中存在幾個不同的Smarty實例同時運行。預/后過濾器插件和輸出過濾器插件的加載方式有點例外。由于它們未涉及在模板中直接使用（上述三個插件都是在php代碼中處理的），它們必須在模板處理前通過注冊或API函數明確地載入系統。同類型的多重過濾器的執行順序取決于它們被注冊或載入的先后次序。插件目錄可以是一個包含路徑的字符串或包含多個路徑的數組。安裝插件的時候，將插件簡單地置于其中一個目錄下，Smarty會自動識別使用。 <table summary="Footer navigation table" width="100%" border="0" cellpadding="0" cellspacing="0"><tr><td width="33%" align="left" valign="top"><a href="plugins.html" accesskey="P">Prev</a></td><td width="34%" align="center" valign="top"><a href="index.html" accesskey="H">Home</a></td><td width="33%" align="right" valign="top"><a href="plugins.writing.html" accesskey="N">Next</a></td></tr><tr><td width="33%" align="left" valign="top">Extending Smarty With Plugins 以插件擴展Smarty</td><td width="34%" align="center" valign="top"><a href="plugins.html" accesskey="U">Up</a></td><td width="33%" align="right" valign="top">Naming Conventions<br/> 命名約定</td></tr></table>