用的是symfony框架,我从后台传递两个值到twig中,然后再想赋值到asset()里面,我该怎么做?控制器传递值的代码如下:
<code>return $this->render("AcmeMinsuBundle:Default:advsImage.html.twig", array('pagination' => $pagination,'cfgImagePath' => $cfgImagePath) );</code>
twig代码如下:
<code>{% for paginations in pagination %} <ul> <li> <div><img src="%7B%7B%20asset('%7B%7B%20cfgImagePath%20%7D%7D%7B%7B%20paginations.getAdvsImagePath%20%7D%7D')%20%7D%7D" alt="关于symfony传递值和twig里面的asset的问题" ></div> </li> </ul> {% endfor %}</code>
我知道以上方法是不行的,那cfgImagePath和paginations.getAdvsImagePath这两个变量组合起来是一个图片的路径,我改怎么传递值或者写twig里面的代码才实现呢。刚开始用symfony,很多都不是很懂,忘各位不吝赐教。
回复内容:
用的是symfony框架,我从后台传递两个值到twig中,然后再想赋值到asset()里面,我该怎么做?控制器传递值的代码如下:
<code>return $this->render("AcmeMinsuBundle:Default:advsImage.html.twig", array('pagination' => $pagination,'cfgImagePath' => $cfgImagePath) );</code>
twig代码如下:
<code>{% for paginations in pagination %} <ul> <li> <div><img src="%7B%7B%20asset('%7B%7B%20cfgImagePath%20%7D%7D%7B%7B%20paginations.getAdvsImagePath%20%7D%7D')%20%7D%7D" alt="关于symfony传递值和twig里面的asset的问题" ></div> </li> </ul> {% endfor %}</code>
我知道以上方法是不行的,那cfgImagePath和paginations.getAdvsImagePath这两个变量组合起来是一个图片的路径,我改怎么传递值或者写twig里面的代码才实现呢。刚开始用symfony,很多都不是很懂,忘各位不吝赐教。
短答案:你需要用"~
"操作符(详见Twig文档)
长答案:
你需要把图片标签改成下边这样:
<code><img src="%7B%7B%20asset(cfgImagePath%20~%20paginations.getAdvsImagePath)%20%7D%7D" alt="关于symfony传递值和twig里面的asset的问题" ></code>
解释:
"
{{ }}
"不能进行嵌套把两个或多个变量、字符串连接起来,用"
~
"操作符,相当于PHP的".
"操作符asset
是twig
的一个函数,传入的变量是给函数用的,而不是输出给HTML的,此处不应有引号

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