call to member function on non-object

[hodges]

On a redHat 7.1 system with php4 and postgres
I am going thru the tutorial for the latest
php_login_lib and adodb. I can create a new
account, log in, log in as uberuser, and delete accounts. When I try to view logs I
get the error
Fatal error: call to a member function on a non-object in login.inc.php, line 1690.
This is the first time that MoveNext() is
called.
Any idea what I should be looking for as a
cause of this? The line is
$result->MoveNext();

Tom

[[deleted]]

It's not movenext() that is the problem, the $result is not defined as an object.

Somewhere along the line $result should be defined as an object that has a method called 'movennext()'

[hodges]

Any suggestions on how to define a variable as
an object with a method called MoveNext()?
Putting
$variable new MoveNext();
anywhere in the login.inc.php file just gives
a parse error. Putting it in or just after
the MoveNext function in adodb.inc.php causes
an undefined function call when anything in
login.inc.php calls the adodb classes. Could
be I just am clueless as to how to do this? :-(

I think I need something like
$result=$variable->MoveNext();
since $result gets used a lot for various purposes...

Thanks, Tom

[[deleted]]

If the code is not yours, and you are not experienced with PHP objects I suggest you contact the author, or forget about the entire issue.

If the object does not get defined there is probablme a plethora (cool word huh?🙂 ) of other things missing too, this does not sound like a simple typo.

[hodges]

Vincent,

Good advice. We are talking. He wants to
try to recreate it. I thought it
unlikely something so blatant would be a bug
so probably something stupid on my part. I
will post again when I find the fix.

Thanks, Tom

[Anon]

if the case was you tried to invoke the function from other class in your own class, here is the way i handled it:

make your class as the extension of which class the function you wanna invoke resides
then call the function normally as: MoveNext();
that's it, and it should work i hope.
example:
class YourClass extends OtherClass{
...
MoveNext();
...
}

[damienatnflc]

I have a similar error and can't figure it out. It obviously has something to do with the object being inside a function, because when I copy the function body and replace the function calls with the function body, it works fine. The error is for line 8 ($rs = $dbc...).

<?
include 'pheader.htm';

function getlistitems($item){
$formfield = "<select name=\"newval\">\n";
print $item;
$rs = $dbc->Execute("get_".$item) or DIE("Could not perform requested task. Please <a href=\"mailto:[e-mail]?subject=".$php_errormsg."\">contact the NFLC</a>.");
while(!$rs->EOF){
$formfield .= "<option value=".$rs->Fields["id"]->value.">".$rs->Fields[$item]->value."\n";
$rs->MoveNext();
}
$formfield .= "</select>";
}

if($submit){
$dbc->execute("update_learning_obj ".$loid.",".$item.",'".$newval."'");
print "\"".$item."\" has been changed.\n";
}
else{
switch($item){
case 'language':
getlistitems($item);
break;
case 'comp_level':
getlistitems($item);
break;
case 'topic':
getlistitems($item);
break;
default:
$formfield = "<input type=\"text\" name=\"newval\">";
}
print "<form method=\"post\" action=\"".$_SERVER['PHP_SELF']."\">\n
Change ".$item." from \"".$val."\" to: ".$formfield."<p>\n
<input type=\"submit\" name=\"submit\" value=\"Change\">\n
<input type=\"hidden\" name=\"item\" value=\"".$item."\">\n
<input type=\"hidden\" name=\"loid\" value=".$loid.">\n
<form>";
}

include 'pfooter.htm';
?>