如果标题不准确,请对不起。
我要做的是为搜索做一个动态查询。准备好的语句将接收列和表名作为参数,并可选择条件(WHERE,AND)作为php变量:
我正在寻找这样的工作吗?
$optional_cond = ' WHERE city = ' . $city . 'AND zone = ' . $zone; // int
if ($stmt = $mysqli->prepare("SELECT COUNT(?) as count, ? FROM ?" . $optional_cond) {
$stmt->bind_param('sss', $column, $column, $table);
$stmt->execute();
$row = $stmt->fetch();
}
$total_results = $row['count'] // here i need the count
现在我需要获取数据:
if (!isset($page_number))
$page_number = (int)$_GET['page'] <= 0 ? 1 : (int)$_GET['page']; // grab the page number
$perpage = 4; // number of elements perpage
if ($page_number > ceil($total_results/$perpage))
$page_number = ceil($total_results/$perpage);
$start = ($page_number - 1) * $perpage;
// here i need the id's one by one
while ($row = $stmt->fetch()) {
$id = $row[$column]; // i think bind_param does not accept arrays
if ($stmt = $mysqli->prepare("SELECT * FROM ? Where id = ? LIMIT ? ?") {
$stmt->bind_param('siii', $table2, $id, $start, $perpage);
$stmt->execute();
}
while ($row = $stmt->fetch()) {
// print the data
}
}
我不确定这是否是最好的方法,我很感激任何建议和改进。
我将使用ajax发送变量$city
和$zone
,我还需要做其他事情吗? (除了检查是否有帖子)。