problem in sql
function get_unique_categories(){ global $con; if(isset($_GET['category'])){ $category_id=$_GET['category']; $select_query="Select * from `products` where category_id='$category_id'"; $result_query=mysqli_query($con,$select_query);
Answer Answered by Daniel Black in this comment.
There isn't enough information here to say what the error is.
Also use prepared statements to avoid SQL injection.
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