I obtained a value in PHP and wanna use it in javascript.
Is there any way to do so ??
Here is the code i am using which is not working
$var = "abc";
document.getElementById(<?php echo $act;?>).class="active";
I am using echo $var inside the getElementById method..
Your code should look like this:
<script type="text/javascript">
document.getElementById("<?php echo($var); ?>").className = "active";
</script>
Please note that to change the "class" in JavaScript, you have to access it with the "className" property, not "class".
document.getElementById(<?php echo json_encode($var); ?>).className = "active";.This should work, if your PHP code (in the Javascript one) is placed in a .php file -- which are executed by the PHP interpreted, while .js ones are not.
Note that you should place quotes arround the id you pass to getElementById :
document.getElementById('<?php echo $act;?>').class="active";
And, of course, your JS code must be placed between <script> tags :
<script type="text/javavascript">
document.getElementById('<?php echo $act;?>').class="active";
</script>
That is the correct usage except for one thing: document.getElementById() expects a string, but when you echo $act you get abc without quotes. So you need to do:
document.getElementById("<?php echo $act;?>").className ="active";
Yes, that should work. But note that PHP is a pre-processor, so your code would end up as:
document.getElementById(abc).class="active";
instead of:
document.getElementById("abc").class="active";
note the missing quote. anyway, I assume you use the name correctly, in your post you declare $var but echo $act.
