需要帮助将JS值形式传递给PHP

Question

I have some problem with passing value from javascript file to php file. I make some calculations in JS, and after that i passing it to php. This is a code of JS:

var price=100;// for example

            $.ajax({
            type: "POST",
            url: "SecureRide.php",
            data: { calculatedPrice: price }
        });

And this is a code of PHP:

<?php 
session_name("ridePrice");
session_start();

$_SESSION["calculatedPrice"]=$_POST["calculatedPrice"];
echo $_SESSION["calculatedPrice"];

?>

So what i do is a simple Ajax function that passes the value to php, very simple, but doesn't work! When I do echo function there's nothing there. Maybe there are another way to solve it? Thank you very much!

Answer 1

Note : if you are put your ajax code in function and than call function from the "$(document).ready(function(){" then your code run perfectly

I write code in your .js file :

$(document).ready(function(){
functionName(price);
});

function functionName(price){

 $.ajax({

  url: 'SecureRide.php', 
  data:{calculatedPrice: price},
  type: 'POST',
     success:function(data)
     {
      alert(data);           
     }, 
     error:function(data) 
     { 
     alert("mistake in your code");
     } 
   }) 
 }  

And Code For PHP file for get .JS File Data

if(isset($_POST['calculatedPrice']) && !empty($_POST['calculatedPrice'])) 
  {
  $calculatedPrice1=$_POST['calculatedPrice'];
  }