Send value to PHP via GET: responseText is EMPTY

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  • aleschenko
    New Member
    • Oct 2008
    • 3
    #1

    Send value to PHP via GET: responseText is EMPTY

    Hello, friends,
    I faced the following error and I'm at a loss what to do with it.
    I have PHP module in 2 files and JavaScript module. In PHP
    part in File1.php I put some text to
    $_GET['curimage']="img1.jpg";
    and then read this text in File2.php
    $curimage=$_GET['curimage'];
    then I echo it
    echo $curimage;
    But on JavaScript part I receive EMPTY responseText ("").

    And if in file2.php I don't read the text from $_GET, but assign it directly
    $curimage="some text";
    echo $curimage;
    responseText is filled with "sometext" which is OK. What's the problem here ?
    My code is below:

    ------------------------------------file1.php-----------------------------------------------
    [CODE=php]<form action="#" method="get">
    <input type="button" onclick="showTe xt()" id="btnTxt" value="Show text" />
    <div id="item1"><?ph p require_once ("file2.php" ); $_GET['curval']='sometext';?></div>
    </form>

    <head>
    <script language="javas cript" type="text/javascript">

    var request = null;

    function createRequest()
    {
    // I use Firefox on Linux Fedora8
    request = new XMLHttpRequest( );
    }

    function printText()
    {
    if ( request.readySt ate == 4 && request.status == 200 )
    {
    alert(request.r esponseText);
    }
    }

    function showText()
    {
    createRequest() ;
    var url = "file2.php" ;
    request.open("G ET", url, true);
    request.onready statechange = printText;
    request.send(nu ll);

    }

    </script>
    </head>
    [/CODE]
    ------------------------------------file2.php-----------------------------------------------
    [CODE=php]<?php
    $curval = $_GET['curval'];
    echo $curval;
    ?>[/CODE]

    PLEASE HELP !!!
    THANK YOU!!!
    Last edited by gits; Oct 12 '08, 04:09 PM. Reason: added code tags
    Tags: None
    • gits
      Recognized Expert Moderator Expert
      • May 2007
      • 5388
      #2
      i don't see where you add the GET param to your url? it should look like:

      [CODE=javascript]var url = 'file2.php' + '?curval=' + your_curval;[/CODE]
      kind regards

        Comment

        • aleschenko
          New Member
          • Oct 2008
          • 3
          #3
          Originally posted by gits
          i don't see where you add the GET param to your url? it should look like:

          [CODE=javascript]var url = 'file2.php' + '?curval=' + your_curval;[/CODE]
          kind regards
          Hello, dear gits !
          Thank you very much 4 your reply, actually I'm new with Ajax,
          I though the statement like $_GET['curval']='sometext' will be enough to send 'sometext' to file2.php
          Can you please edit my code and show how it should look like ?
          I will appriciate your help, a lot of thanks !!!

          Andrey.

            Comment

            • aleschenko
              New Member
              • Oct 2008
              • 3
              #4
              Send value via GET in PHP

              Hello, friends !
              Sorry for stupid post, I have a question about PHP.
              I have 2 PHP files and I want to send 'curval'="anyte xt" from from file1.php to file2.php via GET. The url is http://localhost/file2.php?curval=anytext
              What function I should use to send this value to file2.php ? Can anyone edit my text below to implement this solution ? A lot of thanks !!!

              Here's my code:

              ------------------------------------file1.php-----------------------------------------------

              Code:
              <form action="#" method="get"> 
<input type="button" onclick="showText()" id="btnTxt" value="Show text" /> 
<div id="item1"><?php require_once ("file2.php"); ?></div> 
</form> 
  
<head> 
<script language="javascript" type="text/javascript"> 
  
var request = null; 
  
function createRequest()  
{ 
// I use Firefox on Linux Fedora8 
    request = new XMLHttpRequest(); 
} 
  
function printText() 
{ 
  if ( request.readyState == 4 && request.status == 200 ) 
  { 
    alert(request.responseText); 
  } 
} 
  
function showText() 
{ 
  createRequest(); 
  var url = "file2.php"; 
  request.open("GET", url, true); 
  request.onreadystatechange = printText; 
  request.send(null); 
  
} 
  
</script> 
</head>
              ------------------------------------file2.php-----------------------------------------------
              [PHP]<?php
              $curval = $_GET['curval'];
              echo $curval;
              ?>
              [/PHP]


              Thank you a lot !
              Last edited by acoder; Oct 13 '08, 01:54 PM. Reason: Added [code] tags

                Comment

                • acoder
                  Recognized Expert MVP
                  • Nov 2006
                  • 16032
                  #5
                  Threads merged. Please do not double post your questions.

                  Also remember to use code tags when posting code. See How to ask a question. Thanks!

                  Moderator.

                  Re. your problem: gits has already provided a solution. See an Ajax example.

                    Comment

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