javascript - Get a variable value in the url using ajax -


I'm new to AJAX in this code how do I get variable 'zero' value in a.php?

This code is:

HTML: 

  & lt; Div class = "div1" & gt; & Lt; / Div & gt; & Lt; Button & gt; Click & lt; / Button & gt;   
 AJAX:  
  & lt; Script type = "text / javascript" & gt; var zero = $ ('# query'). valueOf () ;; $ (Document) .ready (function (e) {$ ('button'). Click (function () {$ .ajax ({url: "a.php", type: "post", data: zero, success : Function (result) {$ ('. Div1'). Html (result);}});});}); & Lt; / Script & gt;   
 a.php:  
  & lt ;? php $ zero = $ _POST ['data']; Zero to zero; ? & Gt;    
 
 
 When sending data, send it as key = value pair. In your case, AJAX changes such data in the request.  
 Data: "zero =" + zero  
 do this while entering PHP  
 $ zero = $ _POST ['zero'];

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