I have been studying wordpress-based website source code and have never understood what this page jump is like? Solution

After studying the wordpress-based website source code, why is this page jump always not understood ??? This is mainly a plug-in. for example, the source code of an achievement plug-in contains a large amount of such code: the attribute of a hyperlink: & lt; ahref = & quot; & lt ;? Phpbp_member_permalink ()? & Gt; & quot; & gt; jump & lt ;? P is studying wordpress-based website source code. why is this page jump a problem ???
This is mainly a plug-in. for example, the source code of an achievement plug-in contains a large amount of such code:

Attributes of a hyperlink: "> jump
The link dynamically generated by the result may be jump.

Then I went to the corresponding page and found that the page could not be found, because there was no liyang information in the memebrs folder on the server.

The page to jump to is found strangely: memebers/template/single/unlocked. php, and the displayed content is related to liyang.


What kind of mechanism is this ???? Sorry, please help me ~!!

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RewriteURL
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URLRewrite...
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Achievements for BuddyPress?

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In the wordpress plug-in, you only wrote this function and the plug-in source code?