Code (php):
// uzimanje user_id
function user_id_from_username($username) {
return mysql_result(mysql_query("SELECT `user_id` FROM `users` WHERE `username` = '$username'"), 0, 'user_id');
}
// uzimanje user_id
function user_id_from_username($username) {
return mysql_result(mysql_query("SELECT `user_id` FROM `users` WHERE `username` = '$username'"), 0, 'user_id');
}
Kada u formi unesem nepoznato korisnicko ime, vraca mi gresku:
Warning: mysql_result(): Unable to jump to row 0 on MySQL result index 8 in D:\wamp\www\web\novo\functions\log_reg.php on line 115
kako da je otklonim? hvala unapred.