How to add php content or variable inside javascript alert box?! javascript, php, alertbox

Question

How can i add php content or php variable inside Java-script alert box?! I tried to make it work few ways but it is only popping up a blank box rather than the contents of p

Answer 1

Change this

alert (<?php $b ?>);

to this

alert ('<?php echo $b; ?>');

You need to output the value of $b and add quotes inside the alert.

About PHP - echo

Answer 2

1.

<script>
  alert("</script><?php $r=5;echo $r;?> <script>")
</script>

you have to script off on when php start

Answer 3

I use it like this

$text="Example PHP Variable Message";
echo '<script type="text/javascript">alert("'.$text.'")</script>';

Answer 4

Have you tried this?

alert ('<?php echo $b ?>');

Answer 5

This worked for me :

alert ("<?php echo $b; ?>");