(JSON file)Is there any function to action in Wamp to make it work properly?

Question

Here is my php file to retrieve users informations using recycleview in android. but it does not work I don't know. I need some help Here, image is TEXT and String, the others are varchar String also in my database 'xxxxx' table---users

    <?php
include("connect.php");

if ($conn->connect_error) {

 die("Connection failed: " . $conn->connect_error);
} 

$sql = "SELECT nom, prenom, telephone, email,ncni, datenaissance, image FROM users ORDER BY id DESC ";

$result = $conn->query($sql);

if ($result->num_rows >0) {


 while($row[] = $result->fetch_assoc()) {

 $tem = $row;

 $json = json_encode($tem);


 }

} else {
 echo "No Results Found.";
}
 echo $json;
$conn->close();
?>

Answer 1

You have made a lot of mistakes in your code. You have skipped mysqli (query,fetch_assoc,num_rows should be mysqli_query,mysqli_fetch_assoc,mysqli_num_rows) everywhere. If you don't want to write mysqli multiple times, you should try PDO. Here is an example:

try {
    $db = new PDO('mysql:host=localhost;dbname=DBNAME;charset=utf8',DBUSER, DBPASS);
    //echo "Connected";
}
catch (PDOException $e) {
    //print "Error!: " . $e->getMessage() . "<br/>";
    echo "Not Connected";
    die();
}


$query = $db->prepare("SELECT `nom`, `prenom`, `telephone`, `email`,`ncni`, `datenaissance`, `image` FROM `users` ORDER BY `id` DESC");
$query->execute();


if ($query->rowCount() > 0) {
    $data = $query->fetchAll(PDO::FETCH_ASSOC);

    echo json_encode($data);

}

else
{
   echo 'No Result Found';
}