The worlds weirdest error in php, literally no explanation for it!

[turkman]

My site keeps track of people using cookies. This is stored in $cookie['supercookie']; There area mods who can recommend normal posters to become mods. What it does its sends the persons cookie to recommend.php  recommend.php looks like this.

 

Note when i recommend someone, for some reason my cookie gets unset and it will not let me set a new cookie. I literally don't understand why as the $_cookie['supercookie'] variable is NEVER referneced.

 

i read the GET info containing their cookie, check to see its not and admin or mod, then if they are not i submit their cookie to the pword table and get their uname (this isnt alwatys set) -> Then i add it into a pending table.

 

The script executes perfectly, however for some weird reason it unsets my cookie and wont let me set another one. Its doing my head in.

<?php
session_start();
include $_SERVER['DOCUMENT_ROOT'] . "/includes/functions.php";



if(isset($_SESSION['lv'] )AND $_SESSION['lv'] > 4){

        
        $pass  = "*Private*";
        
if(isset($_GET['cook'])){
                $recby = "Not recorded";
	$ck = protect($_GET['cook']);
	if(!_is_admin($ck) && !_is_mod($ck)){

		//everything is fine.
		//uname,pass,scookie,recby

		//get details.
		$res = mysql_query("SELECT * FROM pword WHERE scookie = '$ck'AND level = 'Norm' LIMIT 1") or die(mysql_error());
		$row = mysql_fetch_array($res);

		$uname = stripslashes($row['uname']);




		mysql_query("INSERT INTO nwg (uname,pass,scookie,recby) VALUES ('$uname','$pass','$ck','$recby')")or die(mysql_error());
		add_notice("User: <strong>$uname</strong> has been recommended");
		echo "<script>location.href='http://www.imgboard.co.uk/'</script>";

	}

	else{
        add_notice("You shouldn't have been able to do that!");
	addaction(8,"Recommended /kbos");
	echo "<script>location.href='http://www.imgboard.co.uk/'</script>";
	die();

	}

}

else{

	add_notice("You need to specify a cookie id!");
	echo "<script>location.href='http://www.imgboard.co.uk/'</script>";
	die();

}


}

else{

add_notice("Restricted Area");
echo "<script>location.href='http://www.imgboard.co.uk/'</script>";
die();

}



?>

[PFMaBiSmAd]

I don't see any code in there that is setting the cookie in question, but the best guess is your cookie is 'missing' because you are redirecting to a host-name/sub-domain (www. vs no www) that is different than where the cookie was set and the cookie parameters are not set to match all variations of your domain.

[turkman]

i set all cookies using the / option, and even then its all in the www. I managed to stop the error by removing the code that gets their username. Thats stopped the bug bug but i still cant uderstand what caused it