Smarty使用自定义资源的方法

本文实例讲述了Smarty使用自定义资源的方法。分享给大家供大家参考。具体如下：

    <?php
    // put these function somewhere in your application
    function db_get_template ($tpl_name, &$tpl_source, &$smarty_obj)
    {
     // do database call here to fetch your template,
     // populating $tpl_source
     $sql = new SQL;
     $sql->query("select tpl_source
       from my_table
       where tpl_name='$tpl_name'");
     if ($sql->num_rows) {
     $tpl_source = $sql->record['tpl_source'];
     return true;
     } else {
     return false;
     }
    }
    function db_get_timestamp($tpl_name, &$tpl_timestamp, &$smarty_obj)
    {
     // do database call here to populate $tpl_timestamp.
     $sql = new SQL;
     $sql->query("select tpl_timestamp
       from my_table
       where tpl_name='$tpl_name'");
     if ($sql->num_rows) {
     $tpl_timestamp = $sql->record['tpl_timestamp'];
     return true;
     } else {
     return false;
     }
    }
    function db_get_secure($tpl_name, &$smarty_obj)
    {
     // assume all templates are secure
     return true;
    }
    function db_get_trusted($tpl_name, &$smarty_obj)
    {
     // not used for templates
    }
    // register the resource name "db"
    $smarty->register_resource("db", array("db_get_template",
         "db_get_timestamp",
         "db_get_secure",
         "db_get_trusted"));
    // using resource from php script
    $smarty->display("db:index.tpl");
    ?>

希望本文所述对大家基于smarty的php程序设计有所帮助。