PHP and Javascript

[syafid]

Hi guru,
Im wondering how to use javascript inside the php block coding.
Im trying to display comfimation box from javascript into my php page.
The confirmation box appear but how to pass the javascript true value into
php coding.

here are my javascript.
[javascript]
echo "<script language=\"Javascript\">";
echo "var r=confirm(\"overwrite existing file?\") ;";
echo "if (r==true)";
echo " "; <- here i want to pass true value to php variable to continue process
echo "else"
echo " " <- here to cancel if user choose cancel or value return false in confm box
echo"</script>";
[/javascript]

I hope guru can help me to find out the solution.

Thanks

[bradgrafelman]

You'll have to either research how to do AJAX, or have the Javascript redirect the user depending on their choice. The reason is that Javascript is a client-side code while PHP is a server-side code, meaning that the entire PHP script will have been executed before the Javascript is sent and executed by the user's browser.