如何在Wordpress中设置the_content()和the_excerpt()的字符数限制 [英] How to set character limit on the_content() and the_excerpt() in wordpress

问题描述

如何在wordpress中设置the_content()和the_excerpt()的字符数限制?我只找到了字数限制的解决方案-我希望能够设置输出的确切数量的字符.

How do I set a character limit on the_content() and the_excerpt() in wordpress? I have only found solutions for the word limit - I want to be able to set an exact amount characters of outputted.

推荐答案

您可以使用Wordpress过滤器回调函数.在主题的目录中，创建一个名为functions.php的文件，然后在以下文件中添加以下内容:

You could use a Wordpress filter callback function. In your theme's directory, create a file called functions.php and add the following in:

<?php   
  add_filter("the_content", "plugin_myContentFilter");

  function plugin_myContentFilter($content)
  {
    // Take the existing content and return a subset of it
    return substr($content, 0, 300);
  }
?>

每次通过the_content()请求帖子/页面的内容时，都会调用plugin_myContentFilter()函数-它为您提供内容作为输入，并将使用您从该函数返回的内容进行后续输出或其他过滤器功能.

The plugin_myContentFilter() function will be called each time you request the content of a post/page via the_content() - it provides you with the content as an input, and will use whatever you return from the function for subsequent output or other filter functions.

您还可以对the_exercpt()-add_filter()然后执行要用作回调的函数进行相同的操作.

You can also do the same for the_exercpt() - add_filter() and then a function to be used as a callback.

有关更多详细信息，请参见 WordPress过滤器参考文档.

See the Wordpress filter reference docs for more details.

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