• If user mambership is bronze then show 5 tasks. Task rate between 1-5. Show 5 tasks every task have 5 deferent rate. This task show randomly not is sequence like 1,2,3,4,5 . It's like 3,5,1,2,4 and more varient. Per refresh show deferent tasks task or sometime show 1-2 same task that previously show . But don't show that task you do.every refresh task show randomly and new between 1-5 rate and max show 5 how to make this is in backend php ?
• Back end code smaple

$mamber = $_post['memebership'];
if($mamber == 'bronze'){
$sql = 'select * from task where cpa = or less then limit 5 (every task rateis deferent and show randomly and when refresh show deferent tasks not previous tasks. write this logic using ChatGPT) ';
} else if($mamber == 'silver'){
$sql = 'select * from task where cpa = or less then 10 limit 10 (every task rateis deferent and show randomly and when refresh show deferent tasks not previous tasks. write this logic using ChatGPT) ';
}else if($mamber == 'gold'){
$sql = 'select * from task where cpa = or less then 20 limit 20 (every task rateis deferent and show randomly and when refresh show deferent tasks not previous tasks. write this logic using ChatGPT) ';
}