I am getting error in console even I added UTF-8

> 
> The character encoding of the HTML document was not declared. The document will render with garbled text in some browser configurations if the document contains characters from outside the US-ASCII range. The character encoding of the page must be declared in the document or in the transfer protocol.
> 
> 
> 

I already added in HMTL head.

```
<meta content="text/html;charset=utf-8" http-equiv="Content-Type">
<meta content="utf-8" http-equiv="encoding">

```

If I delete below my PHP code from HTML then It's working properly

Note: `$GET['Key']` values comes from `URL(domain.com/details?key=uYxnJrS3aLv0JbJFLnnmW4TRRpF6%2FYB0JD6LUhPYu0U%3D)`

```
if ($conn->real_escape_string($_GET['key'])){
     $p_id=$conn->real_escape_string($_GET['key']);
     $decrypted_p_id = decryptIt($p_id);
     /*display single products*/
     $sql_single_products="SELECT p_images, p_name, p_company, p_status FROM products WHERE p_id=?";
     if ($stmt = $conn->prepare($sql_single_products)) {
          $stmt->bind_param("i", $decrypted_p_id);
          $stmt->execute();
          $stmt->bind_result($p_images, $name,$company,$status);
          $stmt->fetch();
     }
}

```

Below Is the function to change my ID encryption to decryption and vice and versa

```
function encryptIt( $q ) {
    $cryptKey  = 'qJB0rGtIn5UB1xG03efyCp';
    $qEncoded      = base64_encode( mcrypt_encrypt( MCRYPT_RIJNDAEL_256, md5( $cryptKey ), $q, MCRYPT_MODE_CBC, md5( md5( $cryptKey ) ) ) );
    return( $qEncoded );
}

function decryptIt( $q ) {
    $cryptKey  = 'qJB0rGtIn5UB1xG03efyCp';
    $qDecoded      = rtrim( mcrypt_decrypt( MCRYPT_RIJNDAEL_256, md5( $cryptKey ), base64_decode( $q ), MCRYPT_MODE_CBC, md5( md5( $cryptKey ) ) ), "\0");
    return( $qDecoded );
}

```

**Connection.php**

```
$servername = "localhost";
$username = "user";
$password = "Pass#@123";
$dbname = "dbname";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
$conn->set_charset('utf8');
// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

```

After adding `$conn->set_charset('utf8');` in database connection file getting
 and also added `ini_set('display_errors', 1);` then I am getting error

```
Allowed memory size of 268435456 bytes exhausted (tried to allocate 4294967296 bytes)

```