Using javascript variable in php inside javascript function

JavaScript
1

In my code a javascript function received value from html hyperlink. Value passing successfully, inside product function document.write(a) printing value 5.
But how can i print value of “a” inside product function by php. My code is here…

[I]<html>
<body>

<a href=‘javascript: product(5);’>click</a>

<script type=‘text/javascript’>

function product(a)
{
document.write(a)

document.write("<?php

echo “some thing”;

?>");

}
</script>
</body>
</html>[/I]

2

PHP is a server side language, JavaScript is a client side language. They are doing completely different parts of serving your page, you can’t mix them.

Process works like this:

  1. Server generates page. <– PHP
  2. Server sends page to client. <– As soon as last byte of page is sent, server stops being involved in page generation. PHP can’t be used after that.
  3. Browser receives page. <!-- Start of JavaScript involvement

PHP and JavaScript are doing completely different things on different sides of serving the page. They can’t interact.

3

Brother CyberAlien, inside php code javacript code can ran,

<? php
$mi=“<script type=‘text/javascript’>document.write(5234);</script>”;
echo $mi; // print 5234
?>
My problem is, inside javascript function passing javascript variable to php variable.

4

No, it doesn’t run. You are just echoing text. Browser then treats text as script and runs it when you’ve sent whole page.

5

in my main code i can not run javascript code inside php code…

<html>
<body>

<a href=‘javascript: product(5);’>click</a>

<script type=‘text/javascript’>

function product(a)
{
document.write(a)

document.write("<?php

$mi=“<script type=‘text/javascript’>document.write(a);</script>”;
echo $mi;

?>");

}
</script>
</body>
</html>

this is my problem, $mi not printing anything

6

Look at the rendered source code of the page and you will find that some fundamental HTML errors are getting in your way.