Fatal error: Call to a member function fetch_assoc() on null on line 9

Question

I don\'t understand

Не понимаю, в чем заключается ошибка

query(\"SET         


        

Answer 1

you can try like this....you have to fetch that array and you can print....

<?php
$mysqli = new mysqli ('localhost', 'root', '', 'db_name');
$mysqli->query("SET NAMES 'utf-8'");
$result_set= mysqli_query($mysqli,"SELECT * FROM products");
$row=mysqli_num_rows($result_set);
echo $row;
while($row=mysqli_fetch_array($result_set))
{            
print_r($row);
}
?>

Answer 2

1. The $result_set is outside the function scope. You can't access it within the function.
2. You're selecting from a string not a table name

Try the following changes:

<?php



function printResult () {
    $mysqli = new mysqli ('localhost', 'root', '', 'UTS');
    $mysqli->set_charset("utf-8"); //Better to do it this way
    $result_set = $mysqli->query ("SELECT * FROM `product`"); //Not the ` instead of '

    while (($row = $result_set->fetch_assoc()) != false) {
        print_r ($row);
        echo "<br/>";
    }
    $mysqli -> close();
}

You can run this function from anywhere.