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- <?php
- $servername = "localhost";
- $username = "root";
- $password = "";
- $dbname = "usuario";
- // Create connection
- $conn = new mysqli($servername, $username, $password, $dbname);
- // Check connection
- if ($conn->connect_error) {
- die("Connection failed: " . $conn->connect_error);
- }
- $se = "SELECT * FROM user WHERE usuario = '$_POST[usuario]'";
- $result = $conn->query($se);
- if ($result->num_rows > 0) {
- // output data of each row
- while($row = $result->fetch_assoc()) {
- echo '<script>
- alert("Usuario ya fué registrado");
- window.history.go(-1);
- </script>
- ';
- }
- } else {
- $sql = "INSERT INTO user (usuario, clave)
- VALUES ('$_POST[usuario]', '$_POST[clave]')";
- if ($conn->query($sql) === TRUE) {
- echo '<script>
- alert("Exito fué registrado");
- window.history.go(-1);
- </script>
- ';
- } else {
- echo "Error: " . $sql . "<br>" . $conn->error;
- }
- }
- $conn->close();
- ?>
- <?php
- session_start();
- // resto del codigo
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