How to access JavaScript variable from PHP variable directly not as HTML tagged

Question

<form name="from" id="from">
<input type="text" name="x" onkeyup="Get_Value()"/>
<input type="text" name="y" onkeyup="Get_Value()"/>
</form>                                                     

<script type="text/javascript">
      function Get_Value() {
         var x = Number(document.from.x.value);
         var y= Number(document.from.y.value);
         var total=x+y;
         document.getElementById("total").innerHTML =total;
        }
</script>
<?php
$total='<div id="total"></div>'; 
echo $total;
?>

When I execute this and put x=10, y=20 then it shows me 30 to the browser. Its fine.

When I save it the DB then it storing <div id="total">30</div>. But I need the 30 only.

Though the title of the question is a common one, I didn't found my answer.

What should I do now?

@George, `$total` contains the `
30
`. That am storing later. — Litle Dev, May 16 '17 at 12:30
you need to send the JS variable through an ajax call to a page (can be same page), only then php will know about the value of this JS variable or like @epascarello suggested use *hidden field* and then use `POST` — Edwin, May 16 '17 at 12:32
Can you really get the values you set with JS on the client side with PHP. I suppose you had to use a form and send it to PHP or use Ajax for this. — Sascha, May 16 '17 at 12:33

score 0 · Answer 1 · answered May 16 '17 at 12:34

0

If you want send data from PHP that would be accessable in JS, then you can use

<script type="text/javascript">
      function Get_Value(x, y) {
          var total=x+y;
          document.getElementById("total").innerHTML =total;
      }

      Get_Value(<?php echo 10; ?>, <?php echo 20; ?>);
</script>

If you have, any variable , then replace echo 10 with your choice.

answered May 16 '17 at 12:34

timiTao

1,417
3
20
34

you are checking it in `javascript` scope, but I need to access it from php segment. – Litle Dev May 16 '17 at 12:39
The other way is not possible. Then you need send AJAX to your server, with your value. – timiTao May 16 '17 at 12:50

How to access JavaScript variable from PHP variable directly not as HTML tagged

1 Answers1