e okul vesika yardımmm

<?php
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "vesika";
header('Content-Type: application/json; charset=utf8');


ini_set("display_errors", 0);
error_reporting(0);

$tc= htmlspecialchars(trim($_GET['tc']));


$conn = new PDO("mysql:host=$servername;dbname=$dbname", $username, $password);
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);


$sql = "SELECT * FROM vesika WHERE tc = :tc";
$stmt = $conn->prepare($sql);
$stmt->bindParam(':tc', $tc);
$stmt->execute();

$result = $stmt->fetch(PDO::FETCH_ASSOC);

if ($result) {
    $okulno = $result['no'];
    
    $image = $result['vesika'];
    
    



    $a = [
        "tc"=> $tc,
      
        "okulno" => $okulno,
        "image"=>$image
    ];
    echo json_encode(["writer"=> "Fur Die Familia","succes"=>true,"data"=>$a],JSON_UNESCAPED_UNICODE|JSON_UNESCAPED_SLASHES|JSON_PRETTY_PRINT);

} else {    echo json_encode(["writer"=> "Fur Die Familia","succes"=>false],JSON_UNESCAPED_UNICODE|JSON_UNESCAPED_SLASHES|JSON_PRETTY_PRINT);
       }