Or you can also do this way: on loading <?php [...] echo "<input type='hidden' name='myphpvar' id='myphpvar' value='".$myphpvar."'>"; [...] echo "<input type='button' name='mybutton' id='mybutton' onclick='javascript:recalculateValue();' value='Click Me!' "; [...] ?> <script type="text/javascript"> functino recalculateValue(){ var myText = document.getElementById("myphpvar"); var myValue = myText.value; /* operations with myText */ myText.value = myRecalcValue; } </script> once changed, you choose how to proceed, maybe executing any other js funcion that use new value of/for the input, maybe submit the form an take it from the request in the next page (in the server side, this time). basicly is use hidden inputs as a container for php variables, and transform through js. 2009/9/18 Gautam Bhatia <mail2gautambhatia@xxxxxxxxx> > hello, > > You can also try using AJAX technology to communicate with the server > side code that is your php :). > > Regards, > Gautam Bhatia > Punjab,India > mail2gautambhatia@xxxxxxxxx > > > On Fri, 2009-09-18 at 02:16 +0700, saeed ahmed wrote: > > hello guys, > > > > i'm new here in this list. guys i need a help. i can't assign a js > variable > > value to a php variable. how can i do this? > > > > > > -- > > Regards, > > Saeed Ahmed > > Rajshahi, Bangladesh > > Blog: http://saeed05.wordpress.com > > -- > > Follow Me Linkedin > > <http://www.linkedin.com/in/sas05>Twitter<http://twitter.com/saeed05> > > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > >