下面这段是判断是否有ajax请求的
不过实在不好理解
能不能注释一下
//判断是否有ajax请求$act = !empty($_GET['act']) ? $_GET['act'] : '';if ($act == 'cat_rec'){ $rec_array = array(1 => 'best', 2 => 'new', 3 => 'hot'); $rec_type = !empty($_REQUEST['rec_type']) ? intval($_REQUEST['rec_type']) : '1'; $cat_id = !empty($_REQUEST['cid']) ? intval($_REQUEST['cid']) : '0'; include_once('includes/cls_json.php'); $json = new JSON; $result = array('error' => 0, 'content' => '', 'type' => $rec_type, 'cat_id' => $cat_id); $children = get_children($cat_id); $smarty->assign($rec_array[$rec_type] . '_goods', get_category_recommend_goods($rec_array[$rec_type], $children)); // 推荐商品 $smarty->assign('cat_rec_sign', 1); $result['content'] = $smarty->fetch('library/recommend_' . $rec_array[$rec_type] . '.lbi'); die($json->encode($result));}
回复讨论(解决方案)
严格来说,这个判断是检测是否是get请求的。就是获取get参数,然后判断,有什么理解不了的。
不知道你是哪边不清楚还是全部不清楚 这个就是简单的http get访问根据获取的信息输出对应的数据。
//判断是否有get请求,并且获取请求参数中的act值,此处不一定是ajax调用 正常的浏览器调用也是可以的$act = !empty($_GET['act']) ? $_GET['act'] : '';// 如果get请求参数act为cat_rec,则执行if里面的代码,如果不等于则忽略if ($act == 'cat_rec'){ $rec_array = array(1 => 'best', 2 => 'new', 3 => 'hot'); $rec_type = !empty($_REQUEST['rec_type']) ? intval($_REQUEST['rec_type']) : '1'; $cat_id = !empty($_REQUEST['cid']) ? intval($_REQUEST['cid']) : '0'; include_once('includes/cls_json.php'); $json = new JSON; $result = array('error' => 0, 'content' => '', 'type' => $rec_type, 'cat_id' => $cat_id); $children = get_children($cat_id); $smarty->assign($rec_array[$rec_type] . '_goods', get_category_recommend_goods($rec_array[$rec_type], $children)); // 推荐商品 $smarty->assign('cat_rec_sign', 1); $result['content'] = $smarty->fetch('library/recommend_' . $rec_array[$rec_type] . '.lbi'); die($json->encode($result));}
你们很伤我的心哈,其实我明白,但是,你们答的都不对,敢许我一说答案,可能很多人会说,这还用说吗,肯定的哈,这就是人类!所以答案我也不说了

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