ovako, početnik sam i malo se igram sa php i mysqli... gleda sam tutorijal prek yt i sve sam napravio ali izbacuje mi sljedece...
da napomenem prije par dan sam isti taj login sistem imo i bili su ti errori ali sam nasao preko neta rjesenje... pa sam opet krenuo da malo shvatim kako to ide ali ne mogu vise naci to rjesenje :(
errori: dole.. tj jedan notice i 2 warninga :)
Notice: Undefined variable: con in C:\wamp\www\login.php on line 16
Warning: mysqli_query() expects parameter 1 to be mysqli, null given in C:\wamp\www\login.php on line 16
Warning: mysqli_num_rows() expects parameter 1 to be mysqli_result, null given in C:\wamp\www\login.php on line 17 line 1
kodovi:
[code]
<?php
//mysqli
if(isset($_POST['username']) && isset($_POST['password']) ){
if(!empty($_POST['username']) && !empty($_POST['password'])) {
$user=$_POST['username'];
$pass=$_POST['password'];
$qry="select user_id from users where username='$user' and Password='$pass'";
$result = mysqli_query($con, $qry);
if(mysqli_num_rows($result)>0){
$row = mysqli_fetch_array($result);
$user_id=$row['UserID'];
$_SESSION['user_id']=$user_id;
header("Location:index.php");
}
else{
echo "<p><font size='2' color='red'>Invalid Username and Password</font></p>";
}
}
else{
echo "<p><font size='2' color='red'>Must enter Username and Password</font></p>";
}
}
//mysqli 2
?> [/code]
[code]
<?php
session_start();
$con = mysqli_connect("localhost","root","","phplogin")or die("error");
?> [/code]
[code]
<?php
include("connection.php");
if(isset($_SESSION['user_id']) && !empty($_SESSION['user_id'])){
echo "Unutra si <a href='logout.php'>Odjava</a>";
}
else{
include("login.php");
}
?> [/code]
