How To Confirm Sql Row Update Using Prepared Statements?

Hello,

Got questions on Sql and Php Prepared Statements.
How would you check whether the SQL managed to update a row or not ? Which one of the following lines would you add the IF condition to ?

1).

mysqli_stmt_execute()

2).

mysqli_stmt_affected_rows()

Which of the following examples A-D are a good way of coding and why ?
And, which are a bad way of coding and why ?

Here are my notes.
A).

mysqli_report(MYSQLI_REPORT_ERROR|MYSQLI_REPORT_STRICT);

$conn = mysqli_connect("localhost","root","","buzz"); //mysqli_connect("server","user","password","db");

$input_1 = 'magi'; //username.
$input_2 = 'admin@magi.com'; //email.
$input_3 = '0'; //id.

$sql = "UPDATE users SET username=?,email=? WHERE id=?";

$stmt = mysqli_prepare($conn,$sql);
mysqli_stmt_bind_param($stmt,"sss",$input_1,$input_2,$input_3);
mysqli_stmt_execute($stmt);
echo 'UPDATED SUCESSFULLY: ' .mysqli_stmt_affected_rows($stmt);

mysqli_stmt_close($stmt);
mysqli_close($conn);

B).

mysqli_report(MYSQLI_REPORT_ERROR|MYSQLI_REPORT_STRICT);

$conn = mysqli_connect("localhost","root","","buzz"); //mysqli_connect("server","user","password","db");

$input_1 = 'magi'; //username.
$input_2 = 'admin@magi.com'; //email.
$input_3 = '0'; //id.

$sql = "UPDATE users SET username=?,email=? WHERE id=?";

if($stmt = mysqli_prepare($conn,$sql))
{
    mysqli_stmt_bind_param($stmt,"sss",$input_1,$input_2,$input_3);
    mysqli_stmt_execute($stmt);
    echo 'UPDATED SUCESSFULLY: ' .mysqli_stmt_affected_rows($stmt);
}
else
{
    echo 'Mysqli Error: ' .mysqli_error();
    echo '<br>';
    echo 'Mysqli Error No: ' .mysqli_errno();
}

mysqli_stmt_close($stmt);
mysqli_close($conn);

C).

mysqli_report(MYSQLI_REPORT_ERROR|MYSQLI_REPORT_STRICT);

$conn = mysqli_connect("localhost","root","","buzz"); //mysqli_connect("server","user","password","db");

$input_1 = 'magi'; //username.
$input_2 = 'admin@magi.com'; //email.
$input_3 = '0'; //id.

$sql = "UPDATE users SET username=?,email=? WHERE id=?";

if($stmt = mysqli_prepare($conn,$sql))
{
    mysqli_stmt_bind_param($stmt,"sss",$input_1,$input_2,$input_3);

    if(mysqli_stmt_execute($stmt))
    {
        echo 'UPDATED SUCESSFULLY: ' .mysqli_stmt_affected_rows($stmt);
    }
    else
    {
        echo 'Mysqli Error: ' .mysqli_error();
        echo '<br>';
        echo 'Mysqli Error No: ' .mysqli_errno();
        echo '<br>';
        die('Failed to INSERT!');
    }
}
else
{
    echo 'Mysqli Error: ' .mysqli_error();
    echo '<br>';
    echo 'Mysqli Error No: ' .mysqli_errno();
}

mysqli_stmt_close($stmt);
mysqli_close($conn);

D).

mysqli_report(MYSQLI_REPORT_ERROR|MYSQLI_REPORT_STRICT);

$conn = mysqli_connect("localhost","root","","buzz"); //mysqli_connect("server","user","password","db");

$input_1 = 'magi'; //username.
$input_2 = 'admin@magi.com'; //email.
$input_3 = '0'; //id.

$sql = "UPDATE users SET username=?,email=? WHERE id=?";

if($stmt = mysqli_prepare($conn,$sql))
{
    mysqli_stmt_bind_param($stmt,"sss",$input_1,$input_2,$input_3);
    mysqli_stmt_execute($stmt);

    if(mysqli_stmt_affected_rows($stmt))
    {
        echo 'UPDATED SUCESSFULLY: ' .mysqli_stmt_affected_rows($stmt);
    }
    else
    {
        echo 'Mysqli Error: ' .mysqli_error();
        echo '<br>';
        echo 'Mysqli Error No: ' .mysqli_errno();
        echo '<br>';
        die('Failed to INSERT!');
    }
}
else
{
    echo 'Mysqli Error: ' .mysqli_error();
    echo '<br>';
    echo 'Mysqli Error No: ' .mysqli_errno();
}

mysqli_stmt_close($stmt);
mysqli_close($conn);

Looking above, is there any that is unnecessarily going through the IF condition ? (Is pointless). If so, then why ?

Thank you for your helps!