Question

This is not dieing as I expected it to, if $key is not a value in the key_code column of the database. Instead it just continues. I’m probably missing something really simple.

$key = $_GET['k'];

$keycheck = mysql_query("SELECT * FROM ib_dist WHERE key_code = '$key'");

if (!$keycheck) {

   die("A database error has occured.");

} else {

Answer 1

try checking the amount of rows found.

$key = $_GET['k'];

$result = mysql_query("SELECT * FROM ib_dist WHERE key_code = '$key'");

if (!$result) {

   die("A database error has occured.");

} else if (0 == mysql_num_rows($result)) {
    // unknown key action
} else {
    // known key action
}