How to make rand() function static in WordPress

Question

I use wp_schedule_single_event() for scheduled publishing, and the value of post_content uses [shortcode]. I'm using rand() to generate random numbers and want to put them into each post. The problem is, I want this random number to become permanent/static. So, every time you refresh the article, this number won't change.

P粉402806175 · Answer

You must return the first rand() value stored in your post's post_meta, when you call your shortcode, check if the value exists, if not generate a value, if it exists use the value stored in Value

in your post_meta