$sql = "SELECT data_user.*,data_car.*,data_prb.*,data_ins.* FROM data_user
left JOIN data_car on data_user.id=data_car.car_id
left JOIN data_prb on data_user.id=data_prb.prb_id
left join data_ins on data_user.id=data_ins.ins_id
WHERE data_user.member_id = '$_SESSION[login_true]'
and name LIKE '%".$strKeyword."%' OR car_num LIKE '%".$strKeyword."%'
ORDER BY id desc
LIMIT 30";
$query = mysqli_query($conn,$sql);
Code (PHP)
WHERE data_user.member_id = '$_SESSION[login_true]'
and name LIKE '%".$strKeyword."%' OR car_num LIKE '%".$strKeyword."%'
ORDER BY id desc
LIMIT 30";