pass php variable value?

[freaker87]

I have this code

 

function showprice(str)(str1)
{
if (str=="")
  {
  document.getElementById("txtchem").innerHTML="";
  return;
  }
if (window.XMLHttpRequest)
  {// code for IE7+, Firefox, Chrome, Opera, Safari
  xmlhttp=new XMLHttpRequest();
  }
else
  {// code for IE6, IE5
  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
xmlhttp.onreadystatechange=function()
  {
  if (xmlhttp.readyState==4 && xmlhttp.status==200)
    {
    document.getElementById("txtchem").innerHTML=xmlhttp.responseText;
    }
  }
xmlhttp.open("GET","getchemcom.php?q="+str,true);
xmlhttp.send();

 

 

i use this

<select onchange="showprice(this.value)($amt);" name='fid'>

 

 

then in getchemcom.php file i get value by

$val=$_GET["q"];

 

but its not working plz help me how can i pass $amt value in getchemcom.php page

 

[AyKay47]

function arguments are separated by a comma, not a whole new set of parenthesis.

 

function showprice(str,str1)

 

and

 

<select onchange="showprice(this.value,<?php echo $amt; ?>);" name='fid'>

[freaker87]

how can i get value of $amt on another php page

[AyKay47]

by adding it to the querystring using AJAX as you have done, however, i do recommend jquery's Ajax API.

[freaker87]

i think i have to add something here

xmlhttp.open("GET","getchemcom.php?q="+str,true);

[AyKay47]

i think i have to add something here

xmlhttp.open("GET","getchemcom.php?q="+str,true);

str1 holds your php variable value, you will need to add that onto the querystring.

 

xmlhttp.open("GET","getchemcom.php?q="+str&s=str1,true);

[freaker87]

thnx

 

but i use ............

 

add this line

var str2 = <? echo $amt ?>;

 

&

 

xmlhttp.open("GET","getchemcom.php?q="+str+"&amt="+str2,true);

 

now its workin fine... & thnx