Why Is My Code Throwing a \'Call to undefined function mysqli_result()\' Error?

Understanding the Undefined Function Error: mysqli_result()

While attempting to transition from MySQL to MySQLi, users may encounter the error "Fatal error: Call to undefined function mysqli_result()." This occurs when calling the obsolete function, mysql_result(), in MySQLi code.

To resolve this error, it's essential to switch to the proper MySQLi function, mysqli_fetch_assoc(). This single function simplifies data retrieval, replacing the inefficient use of multiple operations such as mysql_result(), mysql_num_rows(), and looping.

Here's the revised code:

$query = ("SELECT * FROM `product_category`");
$result = mysqli_query($connect, $query) or die("could not perform query");

while ($row = mysqli_fetch_assoc($result)) {
    $ID = $row['ID'];
    $name = $row['name'];
    $description = $row['description'];
}

By leveraging mysqli_fetch_assoc(), you can retrieve data efficiently and avoid the undefined function error. This optimized approach reduces database operations and improves performance.

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