INDEX.PHP:
<?php
session_start();
if((isset($_SESSION['prihlaseny_uzivatel']) &&
$_SESSION['prihlaseny_uzivatel'] != "" ) ||
(isset($_SESSION['heslo']) &&
$_SESSION['heslo'] != "" )) {
include "prihlaseny_uzivatel.php"; }
?>
_______________________________________________________________________________________________
prihlaseny_uzivatel.php:
<!doctype html>
<HTML xmlns="http://www.w3.org/1999/xhtml" xml:lang="sk" lang="sk">
<HEAD>
<META http-equiv="content-type" content="text/html; charset=utf-8" />
<link rel="stylesheet" type="text/css" href="style.css" />
<TITLE>• Najväčia slovenská internetová kninica</TITLE>
</HEAD>
<body>
Prihlásený uívatež:
<b><?php echo $_SESSION['prihlaseny_uzivatel']; ?></b>.<br>
<a href="osobna_stranka.php">Upravi pofil</a>
</body>
</html>
_______________________________________________________________________________________________
neprihlaseny_uzivatel.php:
<!doctype html>
<HTML xmlns="http://www.w3.org/1999/xhtml" xml:lang="sk" lang="sk">
<HEAD>
<META http-equiv="content-type" content="text/html; charset=utf-8" />
<link rel="stylesheet" type="text/css" href="style.css" />
<TITLE>• Najväčia slovenská internetová kninica</TITLE>
</HEAD>
<body>
Nieste prihlĂĄsenĂ˝, aby ste mohli sĹĽahovaĹĽ musĂte sa prihlĂĄsiĹĽ, prihlĂĄste sa
kliknutĂm <a href="prihlasit_uzivatela.php">TU</a>. Ak nieste registrovanĂ˝ tak sa
zdarma registrujtu <a href="registrovat.php">TU</a>.
</body>
</html>
_______________________________________________________________________________________________
spojenie.inc.php:
<?php
$spojenie = mysql_connect("localhost", "root", "") or die(mysql_error());
$db = mysql_select_db("registration") or die(mysql_error());
?>
_______________________________________________________________________________________________
registrovat.php:
<?php
session_start();
ob_start();
include "spojenie.inc.php";
?>
<!doctype html>
<HTML xmlns="http://www.w3.org/1999/xhtml" xml:lang="sk" lang="sk">
<HEAD>
<META http-equiv="content-type" content="text/html; charset=utf-8" />
<link rel="stylesheet" type="text/css" href="style.css" />
<TITLE>• NajväÄĹĄia slovenskĂĄ internetovĂĄ kniĹžnica</TITLE>
</HEAD>
<body>
<?php
$uzivatel = $_POST['uzivatel'];
$heslo = $_POST['heslo'];
$email = $_POST['email'];
$icq = $_POST['icq'];
if(isset($_POST['odoslat']) && $_POST['odoslat'] == "RegistrovaĹĽ") {
if($_POST['uzivatel'] != "" &&
$_POST['heslo'] != "" &&
$_POST['email'] != "" &&
$_POST['icq'] != ""){
$sql = mysql_query("SELECT username FROM user_info WHERE username =" . $_POST['uzivatel']);
$vysledok = mysql_query($sql) or die(mysql_error());
if(mysql_num_rows($vysledok) != 0 ){
?>
Nick<?php echo $_POST['uzivatel'];?>u existuje.
<form action="registrovat.php" method="POST">
Nick:<input type="text" name="uzivatel"><br>
Heslo:<input type="password name="heslo" value="<?php echo $_POST['heslo']; ?>"><br>
E-Mail:<input type="text" name="email" value="<?php echo $_POST['email']; ?>"><br>
ICQ:<input type="text" name="icq" value="<?php echo $_POST['icq']; ?>"><br><br>
<input type="submit" value="RegistrovaĹĽ"> <input type="reset" value="VyprĂĄzdniĹĽ">
</form>
<?php
} else {
$sql = mysql_query("INSERT INTO user_info (username, password, email, icq) VALUES ('$uzivatel','$heslo','$email,'$icq')");
echo htmlspecialchars("INSERT INTO user_info (username, password, email, icq) VALUES ('$uzivatel','$heslo','$email,'$icq')");
$vysledok = mysql_query($sql) or die(mysql_error());
$_SESSION['prihlaseny_uzivatel'] = $_POST['uzivatel'];
$_SESSION['heslo'] = $_POST['heslo'];
?>
Äakujeme za registrĂĄciu.
<?php
header( "Refresh: 5; URL=index.php");
echo "Vasa registracia je dokoncena !" .
"Budete presmerovany na vyzadovanu stranku, ak ste do 5 sekund neboli presmerovany, kliknite na nasleujuci odkaz" .
"<a href=\"index.php\">Kliknitu tu !</a>";
die();
}}
else {
?>
<form action="registrovat.php" method="POST">
Nick:<input type="text" name="uzivatel" value="<?php echo $_POST['uzivatel']; ?>"> <br>
Heslo:<input type="password name="heslo" value="<?php echo $_POST['heslo']; ?>"> <br>
E-Mail:<input type="text" name="email" value="<?php echo $_POST['email']; ?>"> <br>
ICQ:<input type="text" name="icq" value="<?php echo $_POST['icq']; ?>"> <br> <br>
<input type="submit" value="RegistrovaĹĽ"> <input type="reset" value="VyprĂĄzdniĹĽ">
</form>
<?php
}}
else {
?>
<form action="registrovat.php" method="POST">
Nick:<input type="text" name="uzivatel"> <br>
Heslo:<input type="password name="heslo"> <br>
E-Mail:<input type="text" name="email"> <br>
ICQ:<input type="text" name="icq"> <br> <br>
<input type="submit" value="RegistrovaĹĽ"> <input type="reset" value="VyprĂĄzdniĹĽ">
</form>
<?php
}
?>
</body>
</html>
prosim som uz zufaly z toho 
