致命錯誤：在線上/public_html/website/index.php中的非對象上調用成員函數execute（）

Question

我想從數據庫中獲取數據。 我收到以下錯誤消息。 問題是，下面的代碼在我的其他項目中使用了，並且運行良好。 有人知道問題出在哪里嗎？

我收到此錯誤：

Fatal error: Call to a member function execute() on a non-object in /public_html/website/index.php on line

碼：

include 'scripts/db_conn.php';
include 'scripts/functions.php';

$prep_stmt = "SELECT date FROM blocked_dates WHERE date >= CURDATE();";
    $stmt = $mysqli->prepare($prep_stmt);
    $stmt->execute();
    if (!$stmt) {
        die('There was an error running the query [' . $mysqli->error . ']');
        exit();
    }
    $meta = $stmt->result_metadata();
    while ($field = $meta->fetch_field()) {
        $parameters[] = & $row[$field->name];
    }

    call_user_func_array(array($stmt, 'bind_result'), $parameters);

    while ($stmt->fetch()) {
        foreach ($row as $key => $val) {
            $x[$key] = $val;
        }
        $results[] = $x;
    }

Answer 1

您不能將對象綁定到新變量。

嘗試像這樣啟動您的代碼：

$stmt = new Mysqli();

連接到數據庫后，

$stmt->prepare($prep_stmt);
$debug = $stmt->execute();

if (!$debug) {
    die('There was an error running the query [' . $mysqli->error . ']');
    exit();
}

$meta = $stmt->result_metadata();

while ($field = $meta->fetch_field()) {
    $parameters[] = & $row[$field->name];
}

call_user_func_array(array($stmt, 'bind_result'), $parameters);

while ($stmt->fetch()) {
    foreach ($row as $key => $val) {
        $x[$key] = $val;
    }
    $results[] = $x;
}