A. php標簽在smarty裡面不能使用,怎麼辦
smarty本身是不推薦使用php標記的仿畢銷,備游可以通過編寫插件(block,function,modifier)來代替。
smarty默認不開啟php標記,需要在創建smarty對象後做數叢如下設置:
$smarty->php_handling = SMARTY_PHP_ALLOW ;
B. 我安裝了apache,mysql,phpadmin,smarty還有php5.2.5配置也配好了,可我還是不知道用什麼編寫php文件。。。
apache:web伺服器,用來響應瀏覽器的請求,比如說你在瀏覽器里輸入www..com,首先就是這個web伺服器來接受你的請求。
mysql:資料庫,用來存儲數據,做數據支撐。
phpadmin:mysql資料庫web管理程序。
smarty:比較流行和成熟的模板框架,看樓主的水平,暫時這個還用不上的!
php5.2.5:是php代碼的解釋器,因為php是腳本級別的,他的每行代碼都需要有解釋器來解釋其含義,然後執行。5.2.5是解釋器的版本號。
如何編寫代碼?
首先確定你的環境搭建成功,然後進入到apache文件夾下,有個htdocs文件夾,在裡面添加後綴名為php的文件,文件里添加php代碼,就可以在本地進行代碼測試了,測試方法是,在瀏覽器輸入localhost:80,此處80是apache的默認埠號,需根據apache具體設置決定。
編寫代碼工具?
新手推薦使用editplus,一款比較輕巧的編輯器,不支持代碼自動完成,有利於初期的學習。
有問題可以問我!
C. PHP中的smarty模板的smarty_block如何使用
你可以研究研究 Block Functions塊函數 void smarty_block_ name (array $params, mixed $content, object &$smarty) Block functions are functions of the form: {func} .. {/func}. In other words, they enclose a template block and operate on the contents of this block. Block functions take precedence over custom functions of the same name, that is, you cannot have both custom function {func} and block function {func} .. {/func}.
塊函數的形式是這樣的:{func} .. {/func}。換句話說,他們用標記圈起一個塊,然後對這個塊的內容進行操作。塊函數優先於同名的傳統函數,即你不能同時有通明的傳統函數{func}和塊函數{func} .. {/func}。 By default your function implementation is called twice by Smarty: once for the opening tag, and once for the closing tag (see &$repeat below how to change this).
默認地你的函數執行被Smarty調用兩次:一次是在開始標記,另一次是在結束標記(參考下面的&$repeat怎樣改變這種情況) Only the opening tag of the block function may have attributes. All attributes passed to template functions from the template are contained in the $params as an associative array. You can either access those values directly, e.g. $params['start'] or use extract($params) to import them into the symbol table. The opening tag attributes are also accessible to your function when processing the closing tag.
塊函數僅開始標記可以有屬性。所有從模板傳替給模板函數的屬性被囊括與一個集合數組參數中。你可以直接獲取其值,例如:$params['start']或者是用extract($params)將它們導入符號表中。當處理結束標記時,開始標記的屬性對你的函數也是可用的。 The value of $content variable depends on whether your function is called for the opening or closing tag. In case of the opening tag, it will be null, and in case of the closing tag it will be the contents of the template block. Note that the template block will have already been processed by Smarty, so all you will receive is the template output, not the template source.
變數 $content 的值取決於是否因開始標記或結束標記調用你的函數。假如是開始標記,它會是空的,如果是結束標記,它會是模板塊的內容。請注意模板塊已經被Smarty處理,所以你接收到的結果是輸出後的模板而不是原樣模板。 The parameter &$repeat is passed by reference to the function implementation and provides a possibility for it to control how many times the block is displayed. By default $repeat is true at the first call of the block-function (the block opening tag) and false on all subsequent calls to the block function (the block's closing tag). Each time the function implementation returns with &$repeat being true, the contents between {func} .. {/func} are evaluated and the function implementation is called again with the new block contents in the parameter $content .
參數 &$repeat 通過參考引用傳遞給函數執行過程並為其提供一個可能值來控制顯示塊多少遍。默認情況下在首次調用塊函數(塊開始標記)時變數 $repeat 是真,在隨後的所有塊函數調用中其始終是假。每當函數執行返回的 &$repeat 是真時,在{func} .. {/func}之間的內容再次求值,函數執行接收一個新塊參數 $content 內容值被再次調用。 If you have nested block functions, it's possible to find out what the parent block function is by accessing $smarty->_tag_stack variable. Just do a var_mp() on it and the structure should be apparent.
如果你嵌套了塊函數,通過訪問變數$smarty->_tag_stack 找出父塊函數是可能的。僅僅對塊函數運行一下var_mp(),函數結構就會一目瞭然了。 See also: register_block(), unregister_block(). Example 16-5. block function <?php /* * Smarty plugin * ------------------------------------------------------------- * File: block.translate.php * Type: block * Name: translate * Purpose: translate a block of text * ------------------------------------------------------------- */ function smarty_block_translate($params, $content, &$smarty) { if (isset($content)) { $lang = $params['lang']; // do some intelligent translation thing here with $content return $translation; } }