passing/retrieving variables

[ueon]

I'm trying to pass content, email, user, and content to addpost.php, but it's not returning any values to the 'newupdate' div.

 

<script type='text/javascript'>
function addPost(email, user, date)
{

if(event.keyCode=='13'){  // if they press enter
alert(email+user+date);
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.getElementByClassName('newupdate').innerHTML=xmlhttp.responseText;
	}
  }
var content=encodeURIComponent(document.getElementById('addpost').value);
var parameters='content='+content+'&email='+email+'&user='&date='+date;
xmlhttp.open('POST', 'addpost.php', true);
xmlhttp.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
xmlhttp.send(parameters);
}
}
</script>

 

INDEX.PHP

                echo "<div id='statusbox'><input name='addpost' id='addpost' type='text' style='width: 497px; height: 25px;' onclick='clearBox()' onkeyup=\"addPost('123', '123', '123')\" /></div>";
                echo "<div class='newupdate'>";
			echo "</div>";

 

ADDPOST.PHP

 

<?php

$email = $_POST['email'];
$user = $_POST['user'];
$date = $_POST['date'];
$content = $_POST['content'];

echo "$content";
?>

 

[sunfighter]

Your problem is in your parameters string => &user='&date='

see what's missing?

 

try this:

 

var parameters='content='+content+'&email='+email+'&user='+user+'&date='+date;

[ueon]

I had to change the parameters due to alterations in my processing file, so I can't seem the pass the variable again

 

<script type='text/javascript'>
function addfriend(email)
{

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.getElementByClassName('newupdate').innerHTML=xmlhttp.responseText;
	}
  }
var content=encodeURIComponent(document.getElementById('addfriend').value);
var parameters='email='+email;
xmlhttp.open('POST', 'addfriend.php', true);
xmlhttp.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
xmlhttp.send(parameters);
}

</script>

 

                echo "<input name='addfriend' id='addfriend' type='button' value='click' onclick=\"addfriend('$email')\" />";
			echo "<div class='newupdate'>";
			echo "</div>";

[sunfighter]

This line:

document.getElementByClassName('newupdate').innerHTML=xmlhttp.responseText;

 

Unless you made this yourself, there is no getElementByClassName.

 

I wouldn't use it here anyway. Change it to getElementById and make the php

echo "<div id='newupdate'>";

 

and it will work.

 

I'd be a little leery about using the same name over and over for different things. =>  "addfriend"