6个smarty小技巧
php smarty模板引擎中几个经常被忽略的但比较有用的标签整理，包括capture标签，config_load标签，php标签，strip标签，fetch标签，以及如何在smarty模板中直接使用define定义的常量，下面本文将以具体的例子一一分析：
capture标签
capture的中文意思是抓取，它的作用是抓取模板输出的数据，当我们需要它的时候，调用它，以得到抓取数据的目的。如下例子：
{capture name="test"}
<img src="/static/imghw/default1.png" data-src="testimg.jpg" class="lazy" alt="6个smarty小技巧" >
{/capture}
<div class="image">
{$smarty.capture.test}
</div>说明：在{capture name="test"}和{/capture}之间的内容被存储到变量$test中，该变量由name属性指定.在模板中通过 $smarty.capture.test 访问该变量.如果没有指定name 属性,函数默认将使用"default" 作为参数,这一点类似jquery中的clone方法。
config_load标签
config_load可以直接将文件中的内容读取出来，这样可以省掉assign这一步，如下使用示例：
test.csv 文件：
pageTitle = "config_load_test" bodyBgColor = "#eeeeee" img = "girl.jpg" width="100" height="100"
则模板 index.tpl 文件中可以如下引用以上 test.csv 文件：
{config_load file="test.csv"}
<html>
<title>{#pageTitle#}</title>
<body bgcolor="{#bodyBgColor#}">
<img src="/static/imghw/default1.png" data-src="{#img#}" class="lazy" style="max-width:90%" height="{#height#}" alt="6个smarty小技巧" >
</body>
</html>注：上述过程中如果出现这样的问题Warning: Smarty error: unable to read resource, 请查看一下，你的test.csv是不是放在smarty的配置目录中，默认配置目录是configs 目录。
php标签
当你习惯了assign后，你有没有想过，在模板文件里面直接写php代码呢，虽然非常不建议这么做，但有时候迫于业务的需求不得不这样干的时候该肿么办呢？看看下面这个例子：
{php}
global $result;
foreach($result as $key=>$value){
echo "key=$key,value=>$value<br>";
}
{/php}strip标签
strip标签的作用是去除标签内的空格和回车，我自己感觉这个标签还是挺有用的，可以压缩最终输出的html格式，想要看效果的话，看看本站的源代码就知道了，是不是很酷，呵呵：
{strip}
<div>
<font color="red">strip</font>
<span>
<div>php smarty strip 压缩html输出,www.phpernote.com 看源码效果</div>
</span>
</div>
{/strip}fetch标签
fetch标签和php里面的函数 file_get_contents 功能差不多，都可以把文件中的内容读出来，并且可以将读出来的结果以字符串的形式赋值给某个变量，如下使用案例：
{fetch file="./aaaa.txt" assign="result"}
{if is_array($result)}
<b>is array</b>
{else if}
<b>not array</b>
{/if}在php中使用 define 定义的常量可以在smarty模板中直接使用
使用方法如下：
{$smarty.const.你定义的常量名}您可能感兴趣的文章
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