我需要帮助。我正在尝试使用 PHP 和 MySQL 随机获取数据，但情况并非如此。我在下面解释我的代码。
$day_id=$_GET['day_id'];
$sql=mysqli_query($connect,"select * from db_restaurant_basic where premium=1 and status=1 order by member_id,rand()");
if(mysqli_num_rows($sql) > 0){
while($row=mysqli_fetch_array($sql)){
$member_id=$row['member_id'];
$quad_id=$row['quadrant'];
$sqlqry=mysqli_query($connect,"select * from db_restaurant_detail where member_id='".$member_id."' and day_id='".$day_id."' and checked=1" );
while($details=mysqli_fetch_array($sqlqry)){
$data[]=array("day_id"=>$details['day_id'],"comment"=>$details['comment'],"restaurant_name"=>$row['rest_name'],"member_id"=>$row['member_id'],"available_image"=>$available_image,"city"=>$row['city'],"proviance"=>$row['proviance'],"postal_code"=>$row['postal'],"country"=>$row['country'],"person"=>$row['person'],"mobile"=>$row['mobile'],"url"=>$row['url'],"premium"=>$row['premium'],"image"=>$row['image'],"business_phone_no"=>$row['business_phone_no']);
}
}
}
$result=array("data"=>$data,"imagepath"=>$imagepath);
echo json_encode($result,JSON_UNESCAPED_SLASHES);
从上面的查询中我无法获得随机数据。请帮助我解决这个问题。
最佳答案
仅使用ORDER BY RAND()来获取随机数据:
$sql=mysqli_query($connect,"select * from db_restaurant_basic where premium=1 and status=1 ORDER BY RAND()");
关于php - 无法使用 PHP 和 MySQL 随机获取数据，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/37542747/