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Editorial Team
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Asked: 2026-05-23T14:12:54+00:00

I have a page called getvalues.php, I need to call a function which is

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I have a page called getvalues.php, I need to call a function which is written in a different php page(fileclass.php) in a class from this page(getvalues.php), but the issue is i need to pass a variable also which is $i, and the value of $i passed should be 1 if we are selecting option B, and $i=2 if option=c, and $i=3 if option=D given in dropdown. I had simply wiritten an onchange event but had not written any code in javascript. Please help Thanks. Here is the code for getvalues.php

 <html>
 <select id="s" onchange="callsome();">
    <option value='B' selected>B</option>
    <option value='c'>c</option>
    <option value='D'>D</option>
 </select></html>
 <?php include("fileclass.php")
      $obj=new file;
      echo $obj->func($i);?>
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1 Answer

  1. Editorial Team

    You could implement this using JQuery or Javascript (I use JQuery in the example because it is shorter and easier to make Ajax calls) :

    <html>
   <select id="s" onchange="callsome();">
       <option value='1' selected="selected">B<option>
       <option value='2'>C</option>
       <option value='3'>D</option>
   </select>

   <script>
       function callsome() {
           var selected = $('select#s option:selected').val();
           $.ajax({
               type: "POST",
               url: "fileclass.php",
               data: ({selectedvalue : selected}),
               success: function(data) {
                  alert(data);
               }
           });
       }
   </script>
</html>

    After that the callsome returns the output of the fileclass.php script and you can use that however you like in your code. From your explanation it was not really clear what is happening in fileclass.php and what you want to do with it, so I hope it helps you.

    If you want the function in Javascript only:

    <script type="text/javascript">
function callsome() {
     var e = document.getElementById("s");
     var strVal = e.options[e.selectedIndex].value;

     var xmlhttp;
     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) {
               var data = xmlhttp.responseText;
               //use the data as you wish
          }
     }
     xmlhttp.open("GET","fileclass.php?selectedvalue=strVal",true);
     xmlhttp.send();
}
</script>
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