discuz template syntax

Discuz! The analysis of X template is mainly done by the ./source/class/class_template.php file. If you need to know more, please take a look at this file!

1. Template nesting syntax

   The writing method of parsing the nested template content into PHP statements and merging them into this template
   
   common/header corresponds to the common directory in a certain template series header.html template file
   include nested template content when the program is running
   

   Note: When there are many loops in the template, try to use subtemplate
   

2. Logical judgment if...else

   1. If written in HTML form elements, you can omit the code to make the code clearer and easier to read, such as {if $my_var}xxx{/if}
      Any html statement//It is particularly important when judging an attribute value of an html tag. If it is outside the tag, it is best to add comment symbol
   2. How to write if with branch condition
      Any html statement Any html Statement
   3. If writing method with multiple conditions, you can use bitwise operators in PHP general judgment, etc.
      
      Any html statement
      
   4. CSS can also be judged and set based on conditions when writing. For example:
      //As mentioned above, judge the attribute value in the html tag When , you can omit the comment character

   5. Directly execute PHP code tag:

      //Equivalent to
      //Equivalent to
      / /Equivalent to
      //Equivalent to
      < ;!--{eval exit();}--> //Equivalent to

   6. Output variables directly, which is equivalent to PHP's . The curly braces can be omitted but are not recommended. (The module program can only be called here after processing):

      $announcements
      //Generally the output content is not a simple variable
      //Usage conditions: 1-Variables need to be processed by functions 2-The output is a variable, not an array

   7. Ad embed point code:

      //This is discuz embedded advertising. It is recommended that you customize the advertising space. The customized advertising space will automatically generate the calling code in the background. We only need Just paste and copy

   8. Plug-in hook tag:

      
      hook is the keyword, which means index_top is defined as a hook

   9. Loop syntax (multiple loops possible)

      Loop writing with array keys
      
        HTML statement output by loop
      
      No array Loop writing method of key
      
        HTML statement output by loop
      

      //Try to avoid using the diy function of discuz because of the maintenance of everyone Very large, you can directly customize the module or module code through the background
      {block XXX｝ (data call module)

   10. Discuz! After the language pack is loaded, the usage in the template file:

       {lang forum_category_modedby}
       The language package is in the ./source/language/ directory and is stored in the form of a PHP array

   The above introduces the discuz template syntax, including various aspects. I hope it will be helpful to friends who are interested in PHP tutorials.