库MySQLi在一份声明中结合领域

Question

我有以下代码，为此，我得到错误：

警告：mysqli_stmt :: bind_result（）[mysqli的-stmt.bind-结果]：绑定变量的数量不匹配文件中准备的语句字段数

如果这仅仅是一个警告，不应代码还能用吗？我想要做一个选择*并显示，除了一个领域中的所有数据，这是我要绑定和单独处理。有没有解决任何方式或更好的方法？我在时刻（未尝试过）的解决方案是变量的正确量结合到与getRecords结果，然后分别作为不同的名称与getHtml结合。

什么是结合的advanatges，以及是否有必要。

<?php
if (isset($_GET["cmd"]))
  $cmd = $_GET["cmd"]; else
  die("You should have a 'cmd' parameter in your URL");
$id = $_GET["id"];
$con = mysqli_connect("localhost", "user", "password", "db");
if (!$con) {
    echo "Can't connect to MySQL Server. Errorcode: %s\n". mysqli_connect_error();
    exit;
}
$con->set_charset("utf8");
echo "test outside loop";
if($cmd=="GetSaleData") {
    echo "test inside loop";
    if ($getRecords = $con->prepare("SELECT SELECT Product_NO, Product_NAME, SUBTITLE, CURRENT_BID, START_PRICE, BID_COUNT, QUANT_TOTAL, QUANT_SOLD, ACCESSSTARTS, ACCESSENDS, ACCESSORIGIN_END, USERNAME, BEST_BIDDER_ID, FINISHED, WATCH, BUYITNOW_PRICE, PIC_URL, PRIVATE_AUCTION, AUCTION_TYPE, ACCESSINSERT_DATE, ACCESSUPDATE_DATE, CAT_DESC, CAT_PATH, COUNTRYCODE, LOCATION, CONDITIONS, REVISED, PAYPAL_ACCEPT, PRE_TERMINATED, SHIPPING_TO, FEE_INSERTION, FEE_FINAL, FEE_LISTING, PIC_XXL, PIC_DIASHOW, PIC_COUNT, ITEM_SITE_ID FROM Sales WHERE Product_NO = ?")) FROM SaleS WHERE PRODUCT_NO = ?")) {
        $getHtml = $con->prepare("SELECT PRODUCT_DESC FROM SaleS WHERE PRODUCT_NO = ?");
        $getHtml->bind_param("i", $id);
        $getHtml->execute();
        $getHtml->bind_result($PRODUCT_DESC);
        $getRecords->bind_param("i", $id);
        $getRecords->execute();
        $getRecords->bind_result($PRODUCT_NO, $PRODUCT_NAME, $SUBTITLE, $CURRENT_BID, $START_PRICE, $BID_COUNT, $QUANT_TOTAL, $QUANT_SOLD, $ACCESSSTARTS, $ACCESSENDS, $ACCESSORIGIN_END, $USERNAME, $BEST_BIDDER_ID, $FINISHED, $WATCH, $BUYITNOW_PRICE, $PIC_URL, $PRIVATE_Sale, $Sale_TYPE, $ACCESSINSERT_DATE, $ACCESSUPDATE_DATE, $CAT_DESC, $CAT_PATH, $COUNTRYCODE, $LOCATION, $CONDITIONS, $REVISED, $PAYPAL_ACCEPT, $PRE_TERMINATED, $SHIPPING_TO, $FEE_INSERTION, 
        $FEE_FINAL, $FEE_LISTING, $PIC_XXL, $PIC_DIASHOW, $PIC_COUNT, $ITEM_SITE_ID);
        while ($getRecords->fetch()) {
            // operations snipped for question
            echo "<h1>".$PRODUCT_NAME."</h1>
<div id='leftlayer' class='leftlayer'>
<p><strong>Username: </strong>".$USERNAME."
<p><strong>Shipping to: </strong> ". $country ."
<img src='./images/".$id.".jpg"' width='".$imageSize["width"]."' height='".$imageSize["height"]."'>
</div>
<div id='rightlayer'> 
</div>";
//
} 
}
}
}

我也想知道什么是错我的IMG SRC声明......，我觉得我mising基本的东西，如斜线或引用。

编辑：现在的代码显示一个错误后替换*与列名，然而，当环路被从未进入，并因此无任何操作

Answer 1

您可能需要明确地规定在SELECT中的列名，而不是使用*的中为每个库MySQLi bind_result实施例（）。

在相对于IMG行，有一个额外的“.JPG后

<img src='./images/".$id.".jpg"' width=

应

<img src='./images/".$id.".jpg width=

此外，你实际上并不需要打出来的串并连接所有的变量，因为使用“会导致无论如何要分析变量的字符串。

Answer 2

我猜问题是在这里：

$getRecords->bind_result($PRODUCT_NO, $PRODUCT_NAME, $SUBTITLE, $CURRENT_BID, $START_PRICE, $BID_COUNT, $QUANT_TOTAL, $QUANT_SOLD, $ACCESSSTARTS, $ACCESSENDS, $ACCESSORIGIN_END, $USERNAME, $BEST_BIDDER_ID, $FINISHED, $WATCH, $BUYITNOW_PRICE, $PIC_URL, $PRIVATE_Sale, $Sale_TYPE, $ACCESSINSERT_DATE, $ACCESSUPDATE_DATE, $CAT_DESC, $CAT_PATH, $COUNTRYCODE, $LOCATION, $CONDITIONS, $REVISED, $PAYPAL_ACCEPT, $PRE_TERMINATED, $SHIPPING_TO, $FEE_INSERTION, 
        $FEE_FINAL, $FEE_LISTING, $PIC_XXL, $PIC_DIASHOW, $PIC_COUNT, $ITEM_SITE_ID);

您可能缺少一列。如果有较少的列在结果集中比检索到的代码将工作。

至于img标签，如果你对XHMTL，你将不得不关闭它。

Answer 3

我会通过固定这行开始：

if ($getRecords = $con->prepare("SELECT SELECT Product_NO, Product_NAME, SUBTITLE, CURRENT_BID, START_PRICE, BID_COUNT, QUANT_TOTAL, QUANT_SOLD, ACCESSSTARTS, ACCESSENDS, ACCESSORIGIN_END, USERNAME, BEST_BIDDER_ID, FINISHED, WATCH, BUYITNOW_PRICE, PIC_URL, PRIVATE_AUCTION, AUCTION_TYPE, ACCESSINSERT_DATE, ACCESSUPDATE_DATE, CAT_DESC, CAT_PATH, COUNTRYCODE, LOCATION, CONDITIONS, REVISED, PAYPAL_ACCEPT, PRE_TERMINATED, SHIPPING_TO, FEE_INSERTION, FEE_FINAL, FEE_LISTING, PIC_XXL, PIC_DIASHOW, PIC_COUNT, ITEM_SITE_ID FROM Sales WHERE Product_NO = ?")) FROM SaleS WHERE PRODUCT_NO = ?")) {

我假设它应该是这样，而不是：

if ($getRecords = $con->prepare("SELECT Product_NO, Product_NAME, SUBTITLE, CURRENT_BID, START_PRICE, BID_COUNT, QUANT_TOTAL, QUANT_SOLD, ACCESSSTARTS, ACCESSENDS, ACCESSORIGIN_END, USERNAME, BEST_BIDDER_ID, FINISHED, WATCH, BUYITNOW_PRICE, PIC_URL, PRIVATE_AUCTION, AUCTION_TYPE, ACCESSINSERT_DATE, ACCESSUPDATE_DATE, CAT_DESC, CAT_PATH, COUNTRYCODE, LOCATION, CONDITIONS, REVISED, PAYPAL_ACCEPT, PRE_TERMINATED, SHIPPING_TO, FEE_INSERTION, FEE_FINAL, FEE_LISTING, PIC_XXL, PIC_DIASHOW, PIC_COUNT, ITEM_SITE_ID FROM Sales WHERE Product_NO = ?")) {