I have a PHP file, having HTML and JavaScript code also, I want to use the javascript variable value in the php code, Sample code is as follows:
<script>
function dropdown(){
var e = document.getElementById("im_position");
var strUser = e.options[e.selectedIndex].value;
}
</script>
<?php
$q = //here want to use strUser(javascript varible);
?>
How do I use it ? Help me..
You can't access to javascript variable like that. PhP is execute by the server and JavaScript by client.
You can create an ajax function in JS who call your php script.
http://www.w3schools.com/ajax/
Here you can learn to use Ajax.
JS
function loadDoc() {
var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
if (xhttp.readyState == 4 && xhttp.status == 200) {
xhttp.responseText // return from your php;
}
};
xhttp.open("GET", "yourphp.php?variable="+yourjsvariable, true);
xhttp.send();
}
Php
<?php
return $_GET["variable"];
?>
You can't.
Php runs server-side. Javascript runs client-side.
This means that php compiles into html and does not reach the client. Javascript runs on the client's browser.
Your best solution would be to use ajax.
