Why is it giving an error when using WHERE in a query?

Question

SQL

This query works

$sql = "SELECT `name`, `header`, `text` FROM `nature`"; 
 
if(result(->num_rows>0) 
while($res = $result->fetch_assoc()) 
echo $res['name'];

But when I try to make a selection with WHERE, it gives an error

$sql = "SELECT `name`, `header`, `text` FROM `nature` WHERE `id`=`1`";

if(result(->num_rows>0) 
while($res = $result->fetch_assoc()) 
echo $res['name'];

How to format the request correctly and not get the fetch_assoc error?

Answer 1

`1` // столбец с названием 1
'1' // строка, содержащая один символ - единицу
1 // целое число, единица