[RESOLVED] php+javascript issue

gotissues68

Hi All-
I'm trying to work out a php+javascript setup I am working on. Its raw and ugly but thats besides the point 😃

<?
include 'vars.php';
$db_link = mysql_connect($dbhost,$dbuser,$dbpass);
mysql_select_db(contentmanagement, $db_link);
$query = mysql_query("select data from news where id = '$GET[id]'");
$response = mysql_fetch_array($query);
$blah = "$response[data]";
switch($GET['action'] && $GET[id]) {
case 'foo&$GET[id]':
echo "foo|$blah";
break;
default:
echo 'foo|error';
break;
}
?>

when the above code is executed with the proper URL variables on the page its written into it works fine. However when I use it as a callback component in an AJAX type script I'm writing it won't display $blah as defined under the switch statement. If I change $blah to any non-variable such as "phpbuilder" the callback works. I thought perhaps the switch statement was a global variable (nothing noted about it being one in the PHP.net manual) so I defined $blah as such and I'm still not having any luck.

Here's the javascript processing code just in case it lends any insight:

var http = createRequestObject();

function sndReq(action) {
http.open('get', 'rpc.php?action='+action);
http.onreadystatechange = handleResponse;
http.send(null);
}

function sndReqArg(action,id) {
http.open('get', 'rpc.php?action='+action+'&id='+id);
http.onreadystatechange = handleResponse;
http.send(null);
}

function handleResponse() {
if(http.readyState == 4){
    var response = http.responseText;
    var update = new Array();

    if(response.indexOf('|' != -1)) {
    update = response.split('|');
    document.getElementById(update[0]).innerHTML = update[1];

   }
  }
 }

TIA-
Drew-

kitchin

Possibly try changing & to & in the argument of http.open().

gotissues68

hmm I tried that and it atleast hit the error handler chunk of the switch statement but still not working otherwise.

I have been hacking away on this and found out the following:

if I define a bareword (phpbuilder) for instance it works

if I use an special character surrounding the variable it prints out those special characters but not whats within them

If I create a variable and assign a bareword to it, it prints out correctly.

It only doesn't work when I supply it with the returned content of the mysql query ...

kitchin

Your code has less error-checking than the AJAX code I use, which is based on...
http://developer.mozilla.org/en/docs/AJAX:Getting_Started
See: 'Step 3 – "All together now!" - A Simple Example'. That's all you need to get started and test. Also the browser detection is much cleaner.

Also, how about a debug line, like
alert(response);

gotissues68

definately going to add that all in =) btw it was because of a piece of code that wasn't listed above and it was a quoting issue. Thankf or the pointers to the moz stuff ...

kitchin

Quoting! Glad you got it fixed. AJAX is great stuff.