sourcefiles:
____/css: conectat.css_______############################################3

#banner {
    background-color: #cc33ff;
    height: 150px;
}

#meniu {
    float: left;
    width: 15%;
}

#continut {
    float: right;
    width: 80%;
}

____/css: main.css_______###########################################

*{
    padding: 0;
    margin: 0;
}

body {
    width: 900px;
    margin: 0 auto;
}

nav ul{
    list-style-type: none;
}

nav ul a {
    text-decoration: none;
}



____/css: neconectat.css_______#####################################


#banner{
    background: #cc33ff;
    height: 150px;
}

nav ul li {
    display: inline;
}

______/functii: sql_functions.php______########################################3

<?php

function conectare_bd($host="localhost",$user="root",$pass="",$db="phpc8"){
return mysqli_connect($host, $user, $pass, $db);
}


function inregistrare($email,$parola){
    $link = conectare_bd();
    $email= test($email);
    $parola = test($parola);
    $email = mysqli_real_escape_string($link, $email);
    $parola = mysqli_real_escape_string($link, $parola);
    $parola= md5($parola);
    $sql = "INSERT INTO utilizatori VALUES(NULL,'$email','$parola')";
   $user = checkEmail($email);
   if($user){
       return false;
   }else{
    return mysqli_query($link, $sql);
}
}


function preia_utilizatori() {
    $link = conectare_bd();
    $query = "SELECT * FROM utilizatori";
    $r = mysqli_query($link, $query);
    $user = array();
    while ($email = mysqli_fetch_array($r)) {
        array_push($user, $email);
    }
    return $user;
}

function test($input){
    $input= trim($input);
    $input= htmlspecialchars($input);
    $input = stripslashes($input);
   return $input;
}



function checkEmail($email){
    $link = conectare_bd();
    $email = test ($email);
    $sql = "SELECT email from utilizatori where email='$email'";
    $r = mysqli_query($link, $sql);
    return mysqli_fetch_array($r);
}

function login($email, $parola){
    $link = conectare_bd();
    $email = test($email);
    $parola = test($parola);
    $email = mysqli_real_escape_string($link, $email);
    $parola = mysqli_real_escape_string($link, $parola);
   $user= checkEmail($email);
     if($user){
       // return (md5($parola) == $user['parola']);
        return 1  ;
     }else{
         return false;
     }
}

function adaugare_produs($denumire, $pret, $adresa_imagine){
    $link = conectare_bd();
    $denumire = test($denumire);
    $pret = test($pret);
    $adresa_imagine = test($adresa_imagine);
    //protectie sqlinjection
 //   $denumire = mysqli_real_escape_string($link, $denumire);
   // $pret = mysqli_real_escape_string($link, $pret);
   // $adresa_imagine = mysqli_real_escape_string($link, $adresa_imagine);

    $sql = "insert into phpc8.produse values (NULL, '$denumire', '$pret','$adresa_imagine')";
    return mysqli_query($link, $sql);
}

function preia_produse(){
    $link = conectare_bd();
    $sql = "select * from produse";
    $vector_produse = array();
    $produse = mysqli_query($link, $sql);
    while($produs = mysqli_fetch_array($produse)){
        array_push($vector_produse, $produs);
    }
    return $vector_produse;
}

?>

__________/imagini_produse==============############################33


_________/pagini/conectat/adaugare_produs.php ===##########################3

<h1>Formular adaugare produs</h1>
<form method="POST" enctype="multipart/form-data">
    <table>
        <tr>
            <td>
                Denumire:
            </td>
            <td>
                <input type="text" name="denumire"/>
            </td>
        </tr>
        <tr>
            <td>
                Pret:
            </td>
            <td>
                <input type="text" name="pret"/>
            </td>
        </tr>
        <tr>
            <td>
                Imagine:
            </td>
            <td>
                <input type="file" name="imagine"/>
            </td>
        </tr>
        <tr>
            <td colspan="2">
                <input type="submit" name="adauga_produs" value="adauga"/>
            </td>
        </tr>
    </table>

</form>

<?php
require_once 'functii/sql_functions.php';
if (isset($_POST['adauga_produs'])){
    $denumire = $_POST['denumire'];
    $pret=  $_POST['pret'];
    if(($_FILES['imagine'])){
        if($_FILES['imagine']['error']==0){
            switch ($_FILES['imagine']['type']) {
                case 'image/jpg':
                    case 'image/jpeg':
                         case 'image/png':
                            case 'image/bmp':
                                case 'image/gif':
                                    $nume_nou = uniqid().$_FILES['imagine']['name'];
                                $r=    move_uploaded_file($_FILES['imagine']['tmp_name'], 'imagini_produse/'.$nume_nou);
                                if($r){
                                   $rez = adaugare_produs($denumire, $pret, $nume_nou);
                                   if($rez){
                                    print 'Fisier incarcat';//pe server
                                   }else{
                                       unlink("imagini_produse/$nume_nou");
                                       print "eroare la salvarea in baza date";
                                   }
                                    }else{
                                    print "Eroare";
                                }
                    break;

                default: print "fisierul nu are formatul necesar";
                    break;
            }
        }
    }
}

?>


_________/pagini/conectat/vizualizare_produs.php ==========######################333333

<h1>Lista produse</h1>


    <?php

require_once 'functii/sql_functions.php';
$produse = preia_produse();
if(count($produse)==0){
    print "nu exista produse";
}
else{

}
    ?>
<table witdh="500"
   border="10px solid black">
    <thead>
    <tr>

        <th>Denumire</th>
        <th>Pret</th>
        <th>Imagine</th>

</tr>
</thead>
<tbody>
    <?php
        foreach($produse as $produs){
            print "<tr>";
            print "<td>".$produs['denumire']."</td>";
            print "<td>".$produs['pret']."</td>";
            print "<td>".$produs['adresa']."</td>";
            print "</tr>";
        }
    ?>
</tbody>
</table>

_________/pagini/conectat/cart.php===================############################


<html>
    <h1>Cos de cumparaturi</h1>
</html>
<?php
require_once 'functii/sql_functions.php';
if (isset($_SESSION['cos']) && $_SESSION['cos']!=null) {
   foreach($_SESSION['cos'] as $id_pr => $cant_pr) {
       $produs = preia_produs_dupa_id($id_pr);
       if ($produs) {
           print $produs['denumire']." cantitate ".$cant_pr." pret ".$produs['pret'];
           print "</br>";
       }
   }
} else {
    print "Cos gol";
}

/*
 * foreach($elements as $element)
 * foreach($elements as $key => $element)
 */

_________/pagini/neconectat/eroare.php====================================##########

<h1>Pagina inexistenta.php

____/ttemplates/template_conectat.php=====================================##########


<html>
    <header id="banner"></header>
    <nav id="meniu">
        <ul>
            <li><?php print "Welcome, " .$_SESSION['email_utilizator']; ?></li>
            <li>
                <a href="index.php">Vizualizare produse</a>
            </li>
            <li>
                <a href="index.php?p=1">Adaugare produse</a>
            </li>
            <li>
                <a href="index.php?logout">Logout</a>
            </li>
        </ul>
    </nav>
    <section id="continut">
</br>
<?php
if(isset($_GET['p'])){
    if($_GET['p']=='1'){
        require_once 'pagini/conectat/adaugare_produs.php';
    }else{
        require_once 'pagini/eroare.php';
    }
}else{
    require_once 'pagini/conectat/vizualizare_produs.php';
}

if (isset($_GET['logout'])) {
    session_destroy();
    header("location:index.php");
}
?>
</section>
</html>


____/ttemplates/template_neconectat.php_____###########################3

<html>
<header id="banner"></header>
<nav id="meniu">
    <ul>
        <li>
            <a href="index.php?p=1">Inregistrare</a>
        </li>
        <li>
            <a href="index.php">Conectare</a>
        </li>
    </ul>
</nav>
<section id="continut">

<?php
    if(isset($_GET['p'])){
        if($_GET['p']=='1'){
            require_once 'pagini/neconectat/inregistrare.php';
        }else
        {
        require_once 'pagini/eroare.php';}
        }else
            {
            require_once 'pagini/neconectat/conectare.php';
        }


?>
</section>
</html>

_______________index.php __________######################


<?php
    session_start();
    if(isset($_POST['conectare'])){
        require_once 'functii/sql_functions.php';
        $e = $_POST['email'];
        $p = $_POST['parola'];

        $r= login($e, $p);
        if($r){
            if(isset($_SESSION['eroare_login'])){

            unset($_SESSION['eroare_login']);}
            $_SESSION['email_utilizator'] = $e;
        } else{
           $_SESSION['eroare_login']='Conectare esuata';

            }
        }

?>

<html>
    <head>
        <meta charset="UTF-8">
        <title></title>
        <link type="text/css" rel="stylesheet" href="css/main.css"/>
        <?php
            if(isset($_SESSION['email_utilizator'])){
        ?>
        <link type="text/css" rel="stylesheet" href="css/neconectat.css"/>
        <?PHP
            }else{
        ?>
        <link type="text/css" rel="stylesheet" href="css/neconectat.css"/>
        <?php
            }
        ?>
    </head>
    <body>
        <?php
        if(isset($_SESSION['email_utilizator'])){
            require_once 'ttemplates/template_conectat.php';
        }else{
         require_once 'ttemplates/template_neconectat.php';
        }
         ?>
    </body>
</html>