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How to use external functions in smarty?

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Release： 2023-03-08 14:36:01
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1. System function usage:

    

  {strlen('helloworld')}//在模板中需要对函数使用一个相应的边界符{}。
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2. Custom function usage:

 //smarty.html 模板 
  {SpeakHello()}
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display('smarty.html'); ?>
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