Question

在插入数据库时遇到问题我运行到不同的mysqli查询以插入到同一个表中，但在运行此插入到order_contents所选的第二个查询时插入到不同的字段中运行var转储时，图像输出bool(false)，不会插入数据库。

我已将下面的代码包含在内，以便可以看到。

    <?php
    session_start();
    if($_GET['id']=='logout')
    {
    unset($_SESSION['userdetails']);
    session_destroy();


    }
    require 'instagram.class.php';
    require 'instagram.config.php';

    if (!empty($_SESSION['userdetails'])) {

    $data=$_SESSION['userdetails'];

    // Store user access token
    $instagram->setAccessToken($data);

    } else
    {   
    header('Location: index.php');
    }

    # Set page title and display header section.
    $page_title = 'Checkout' ;
    include ( 'includes/header.html' ) ;

    # Check for passed total and cart.
    if ( isset( $_GET['total'] ) && ( $_GET['total'] > 0 ) && (!empty($_SESSION['cart']) ) )
    {
      # Open database connection.
      require ('connect_db.php');

      # Store buyer and order total in 'orders' database table.
      $q = "INSERT INTO orders ( id, total, order_date ) VALUES (".$data->user->id.",".$_GET['total'].", NOW() ) ";
      $r = mysqli_query ($connection, $q);
           var_dump($q);
      # Retrieve current order number.
      $order_id = mysqli_insert_id($connection) ;

      # Retrieve cart items from 'shop' database table.
      $q = "SELECT * FROM shop WHERE item_id IN (";
      foreach ($_SESSION['cart'] as $id => $value) { $q .= $id . ','; }
      $q = substr( $q, 0, -1 ) . ') ORDER BY item_id ASC';
      $r = mysqli_query ($connection, $q);

      # Store order contents in 'order_contents' database table.
      while ($row = mysqli_fetch_array ($r, MYSQLI_ASSOC))
      {
        $query = "INSERT INTO order_contents ( order_id, item_id, quantity, price )
        VALUES ( $order_id, ".$row['item_id'].",".$_SESSION['cart'][$row['item_id']]['quantity'].",".$_SESSION['cart'][$row['item_id']]['price'].")" ;
        $result = mysqli_query($connection,$query);
      }

      var_dump($query);

      # Display order number.
      echo "<p>Thanks for your order. Your Order Number Is #".$order_id."</p>";

      # Remove cart items.  
      $_SESSION['cart'] = NULL ;
    }
    # Or display a message.
    else { echo '<p>There are no items in your cart.</p>' ; }

    if (!isset($_SESSION['myvar']) ){

    } else {
      $q = "INSERT INTO order_contents ( selectedimages ) VALUES (".$_SESSION['myvar']['0'].") ";
      $r = mysqli_query ($connection, $q);
        var_dump($q);
          var_dump($r);
            var_dump($query);
        mysqli_close($connection);
      # Close database connection.
    }

    # Create navigation links.
    echo '<p><a href="shop.php">Shop</a> | <a href="forum.php">Forum</a> | <a href="home.php">Home</a> | <a href="goodbye.php">Logout</a></p>' ;

    # Display footer section.
    include ( 'includes/footer.html' ) ;

    ?>

var dump输出bool（false）

0 个答案: