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- login.php
- <?php
- $conexao = mysqli_connect('localhost','root','') or print "erro: " . (mysqli_error());
- $db = mysqli_select_db('teste', $conexao) or print(mysqli_error());
- $cnpj = $_POST['cnpj'];
- $senha = md5($_POST['senha']);
- $sql = "SELECT * FROM usuario WHERE cnpj = '$cnpj' AND senha = '$senha'";
- $resultado = mysqli_query($conexao, $sql);
- $linha = mysqli_affected_rows($conexao);
- if ($linha > 0) {
- $num = rand(100000, 900000);
- session_start();
- $_SESSION['numlogin'] = $num;
- $_SESSION['user'] = $cnpj;
- header("Location:index.html?num1=$num");
- }else {
- echo "Erro no login <a href='../login.html'>Voltar</a>";
- }
- mysqli_close($conexao);
- ?>
- verificacao.php
- <?php
- if (isset($_SESSION["numlogin"])) {
- $n1 = $_GET["num1"];
- $n2 = $_SESSION["numlogin"];
- if ($n1 != $n2) {
- echo "Login não efetuado";
- exit;
- }
- }else {
- echo "Login não efetuado";
- exit;
- }
- include "$conexao";
- header("Location:index.html");
- $conexao = mysqli_connect('localhost','root','');
- mysqli_close($conexao);
- formulário html
- <form method="POST" action="php/login.php">
- <div class="row form-group">
- <div class="col-md-12">
- <label for="username">CNPJ</label>
- <input type="text" class="form-control" id="cnpj" name="cnpj">
- </div>
- </div>
- <div class="row form-group">
- <div class="col-md-12">
- <label for="password">Senha</label>
- <input type="password" class="form-control" id="senha" name="senha">
- </div>
- </div>
- <div class="row form-group">
- <div class="col-md-12">
- <input type="submit" class="btn btn-primary" value="Acessar" id="acessar" name="acessar">
- </div>
- </div>
- </form>
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