Pass php variables into javascript

[puterafr]

Can someone help me by giving an example on how to pass php variable into javascript codes and passing back the value/variable back to php (in the same page)?

[RaS_]

PHP is server side, Javascript client side. You can only pilot javascript via php, not the opposite.

[swallace]

<?php
$test = 5; # php variable

echo "<script> var jstest = '$test'; </script>"; # Assign it to a javascript variable
...
...
?>

Now JS can use it.