[SOLVED] Ajax send form

scuff · October 8, 2008

testing.php

<?php

if ($_POST['delete']) {
$stringData = "delete";
$ourFileName = "directlink.php";
$ourFileHandle = fopen($ourFileName, 'w');
fwrite($ourFileHandle, $stringData);
fclose($ourFileHandle);
}
?>
<body onLoad="commencer()">

<script language="javascript" type="text/javascript">
function commencer() {
setInterval(ajaxFunction2, 1000);
}

function ajaxFunction2(){
var ajaxRequest2;  // The variable that makes Ajax possible!

try{
	// Opera 8.0+, Firefox, Safari
	ajaxRequest2 = new XMLHttpRequest();
} catch (e){
	// Internet Explorer Browsers
	try{
		ajaxRequest2 = new ActiveXObject("Msxml2.XMLHTTP");
	} catch (e) {
		try{
			ajaxRequest2 = new ActiveXObject("Microsoft.XMLHTTP");
		} catch (e){
			// Something went wrong
			alert("Your browser broke!");
			return false;
		}
	}
}
ajaxRequest2.open('POST', 'testing.php');
        ajaxRequest2.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
        var title = document.getElementById('delete').value;
        ajaxRequest2.send(title);
}
</script>
<input type="text" name="delete" id="delete" value="delete">
</body>

I'm trying to make a form send every second without refreshing and basically clear another file. I can't get it to work does anyone see what I'm doing wrong? (probably many things because I'm testing)

Maq · October 9, 2008

Are there errors? What's happening?

xtopolis · October 9, 2008

Maybe you're not sending the POST request right?

One of my working examples looks like this:

function post(val)
{
  var XHRO = new newXHRO();
  
  var author = document.getElementById('name').value;
  var quote = document.getElementById('quote').value;
  var url = '../_common/addquote.php';

  var params = "author="+escape(author)+"&quote="+escape(quote);

  XHRO.open('POST', url, true);

  XHRO.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
  XHRO.setRequestHeader("Content-length", params.length);
  XHRO.setRequestHeader("Connection", "close");

  XHRO.onreadystatechange=function()
  {
    if(XHRO.readyState==4 && XHRO.status==200)
    {
      x.innerHTML = XHRO.responseText;
    }
  }
  
  XHRO.send(params);
}

Mainly, I don't see a

XHRO.setRequestHeader("Content-length", params.length);

in yours.

scuff · October 9, 2008

        ajaxRequest2.open('POST', 'testing.php');
        var title = document.getElementById('delete').value;
        ajaxRequest2.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
        ajaxRequest2.setRequestHeader('Content-length', title.length);
        ajaxRequest2.send(title);

I inserted this instead of

ajaxRequest2.open('POST', 'testing.php');
        ajaxRequest2.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
        var title = document.getElementById('delete').value;
        ajaxRequest2.send(title);

and it still didn't work

xtopolis · October 9, 2008

before I mess with this code.. is it because your <script> tags are not in the <head> section of your document.. move them from <body> -> <head> please.

scuff · October 9, 2008

<?php

if ($_POST['delete']) {
$stringData = "delete";
$ourFileName = "directlink.php";
$ourFileHandle = fopen($ourFileName, 'w');
fwrite($ourFileHandle, $stringData);
fclose($ourFileHandle);
}
?>
<head>
<script language="javascript" type="text/javascript">
function commencer() {
setInterval(ajaxFunction2, 1000);
}

function ajaxFunction2(){
var ajaxRequest2;  // The variable that makes Ajax possible!

try{
	// Opera 8.0+, Firefox, Safari
	ajaxRequest2 = new XMLHttpRequest();
} catch (e){
	// Internet Explorer Browsers
	try{
		ajaxRequest2 = new ActiveXObject("Msxml2.XMLHTTP");
	} catch (e) {
		try{
			ajaxRequest2 = new ActiveXObject("Microsoft.XMLHTTP");
		} catch (e){
			// Something went wrong
			alert("Your browser broke!");
			return false;
		}
	}
}
ajaxRequest2.open('POST', 'testing.php');
        var title = document.getElementById('delete').value;
        ajaxRequest2.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
        ajaxRequest2.setRequestHeader('Content-length', title.length);
        ajaxRequest2.send(title);
}
</script>
</head>
<body onLoad="commencer()">
<input type="text" name="delete" id="delete" value="delete">
</body>

I didn't even notice that but either way it's still not working..

scuff · October 9, 2008

If somebody could play around with it until it works then post code that would help D: I know it's lazy but do what you want

Maq · October 9, 2008

I didn't even notice that but either way it's still not working..

What does that mean? Are there any errors? If not do you have display_errors turned on?

Try:


if (isset($_POST['delete'])) {

scuff · October 9, 2008

I didn't even notice that but either way it's still not working..

What does that mean? Are there any errors? If not do you have display_errors turned on?

Try:
<?php

if (isset($_POST['delete'])) {

I was talking about how I didn't notice that the javascript wasn't in the <head>

I don't think there are any errors because when the page loads it doesn't say anything at the bottom, and I don't know how to check if display_errors is turned on.

BTW

<?php

if (isset($_POST['delete'])) {

doesn't work either

Maq · October 9, 2008

Put this at the top of your script:

ini_set ("display_errors", "1");
error_reporting(E_ALL);

Run it, and see if there are any errors.

scuff · October 9, 2008

oh yea I have that on and there are no errors

xtopolis · October 10, 2008

My ajax works, but I didn't test your php script. I can successfully make it there though. ps, I renamed the url part of the ajax, so you'll have to change it back.

<?php

if ($_POST['delete']) {
die('made it');
$stringData = "delete";
$ourFileName = "directlink.php";
$ourFileHandle = fopen($ourFileName, 'w');
fwrite($ourFileHandle, $stringData);
fclose($ourFileHandle);
}
?>
<html>
<head>
<script language="javascript" type="text/javascript">
function commencer() {
  setInterval(ajaxFunction2, 1000);
}
function ajaxObj()
{
  try { return new XMLHttpRequest(); } catch(e) {}
  try { return new ActiveXObject("Msxml2.XMLHTTP"); } catch (e) {}
  try { return new ActiveXObject("Microsoft.XMLHTTP"); } catch (e) {}
  alert("XMLHttpRequest not supported");
  return null;
}

function ajaxFunction2(){
  ajaxRequest2 = new ajaxObj;
  //loading
  document.getElementById('myDiv').innerHTML = 'Loading';

  var params = "delete=1";
  ajaxRequest2.open('POST', 'test.php', true);

  ajaxRequest2.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
  ajaxRequest2.setRequestHeader("Content-length", params.length);
  ajaxRequest2.setRequestHeader("Connection", "close");

  ajaxRequest2.onreadystatechange=function()
  {
    if(ajaxRequest2.readyState==4 && ajaxRequest2.status==200)
    {
      //x.innerHTML += '<br />' + ajaxRequest2.responseText;
      document.getElementById('myDiv').innerHTML = ajaxRequest2.responseText;
    }else{
      document.getElementById('myDiv').innerHTML = ajaxRequest2.status;
    }
  }

  ajaxRequest2.send(params);
}
</script>
</head>
<body onLoad="commencer()">
  <div id="myDiv">
  Not yet.
  </div>
</body>
</html>

scuff · October 10, 2008

Wow thanks! I simplified it to this to fit my needs

<?php
if ($_POST['delete']) {
$stringData = "delete <br>";
$ourFileName = "directlink.php";
$ourFileHandle = fopen($ourFileName, 'a');
fwrite($ourFileHandle, $stringData);
fclose($ourFileHandle);
}
?>

<html>
<head>
<script language="javascript" type="text/javascript">
function commencer() {
  setInterval(ajaxFunction2, 1000);
}
function ajaxObj()
{
  try { return new XMLHttpRequest(); } catch(e) {}
  try { return new ActiveXObject("Msxml2.XMLHTTP"); } catch (e) {}
  try { return new ActiveXObject("Microsoft.XMLHTTP"); } catch (e) {}
  alert("XMLHttpRequest not supported");
  return null;
}

function ajaxFunction2(){
  ajaxRequest2 = new ajaxObj;
  var params = "delete=1";
  ajaxRequest2.open('POST', 'test.php', true);
  ajaxRequest2.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
  ajaxRequest2.setRequestHeader("Content-length", params.length);
  ajaxRequest2.setRequestHeader("Connection", "close");
  ajaxRequest2.send(params);
}
</script>
</head>
<body onLoad="commencer()">
</body>
</html>

Thanks once again

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[SOLVED] Ajax send form

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