Pass JavaScript var to php function

Question

I have JavaScript function with pass one parameter to

<script type="text/javascript">
function myfun(var1)
{
   var returnVal = "<?php echo get_value(); ?>";
}
</script>

I want to pass JavaScript variable i.e. var1 to get_value();

PHP runs on the server. *First*. It generates HTML/JavaScript which is run on the client. *Later*. To pass data *back* to PHP you need to *send it to the server* (form post, AJAX, SignalR, etc). — user2864740, Nov 01 '13 at 06:17
http://stackoverflow.com/questions/1917576/how-to-pass-javascript-variables-to-php — jfmbrennan, Nov 01 '13 at 06:20
You need Ajax or a good old HTML form : http://www.w3schools.com/php/php_forms.asp. — , Nov 01 '13 at 07:52

score 5 · Accepted Answer · edited May 23 '17 at 12:13

5

You can't do that.

PHP is executed server-side, Javascript client-side. What that means is, the PHP code is executed before the Javascript.

However, you could use AJAX to call a PHP function from Javascript.

You can refer : how to pass the JavaScript variable to the php function

How to pass JavaScript variables to PHP?

edited May 23 '17 at 12:13

Community

1
1

answered Nov 01 '13 at 06:19

Sridhar R

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score 0 · Answer 2 · answered Nov 01 '13 at 06:37

Try this:

PHP is executed server-side.
Javascript client-side. 
It means, the PHP code is executed before the Javascript.

Here what you can do is to use jquery-ajax.

Inside that call a URL which returns variable you want.
Use that in result of ajax.

Thanks

Pass JavaScript var to php function

2 Answers2