PHP javascript class variable value in php echo

Question

this is simple example i want java script class variable to php echo please fix the following example to php echo value out put

<!DOCTYPE html>
<html>
<body>

<div class="example">The Book</div>


<? echo '<div class="example">The Book</div>'; ?>


<script>
function myFunction() {
    var x = document.getElementsByClassName("example");
    x[0].innerHTML = "Hello World!";
}
</script>

</body>
</html>

out put of java-script "The book" but php echo is '<div class="example">The Book</div>' Targeted out put of php The book

You don't call your function anywhere so it won't get executed. Plus php is a serverside and js a clientside language. Serverside gets executed before clientside (xhr/ajax is a workaround which kind off smoothen the borders/lines of both) — TobiasJ
– TobiasJ, Commented Sep 6, 2015 at 13:53

alkanen · Accepted Answer · 2015-09-06 13:21:27Z

2

Javascript is run on the client, PHP is run on the server. If you want PHP to use the values calculated in javscript you first have to send it to the server, either through something like AJAX, or perhaps just a query string if you don't mind loading a new page or loading the same page again but with a query string appended to the URL.

answered Sep 6, 2015 at 13:21

alkanen

6546 silver badges16 bronze badges

how do JavaScript variables to url get? may u know @alkanen

Henok
– Henok

09/06/2015 14:32:45
Commented Sep 6, 2015 at 14:32
I'm sorry, I'm not sure I understand your question =/

alkanen
– alkanen

09/15/2015 15:01:51
Commented Sep 15, 2015 at 15:01

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