Obtain multiple IDs selected by JS and pass parameters to the PHP page. how can this problem be solved?

Get multiple IDs selected by JS, and pass the parameters to the PHP page. now I have used JS to save the selected IDs to cookies. how can I get these IDs, (There may be 2 or 3 IDs) and I want to pass the value to the PHP page through the button. I am a newbie. this button is HTMLcode & lt; inputname & quot; id & quot; u427 & quot; type & quot; button & obtain multiple IDs selected by JS, and pass parameters to the PHP page
Now I have used JS to save the selected ID to the COOKIE. how can I get these IDs? (there may be two or three IDs) in addition, I want to use the button to transfer the value to the PHP page.
Myself Cainiao
This button

HTML code

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Discussion
Now I have used JS to save the selected ID to the COOKIE. how can I get these IDs? (there may be two or three IDs) in addition, I want to use the button to transfer the value to the PHP page.
Myself Cainiao
HTML code of this button

Class = "hand fL" disabled value = "start to compare" onclick = "window. open ('compar ......