mysqli在准备好的语句中绑定字段

Question

I have the following code, for which I get the error:

Warning: mysqli_stmt::bind_result() [mysqli-stmt.bind-result]: Number of bind variables doesn't match number of fields in prepared statement in file.

If this is only a warning, shouldn't the code still work? I want to do a select * and display all the data except one field, which I want to bind and handle separately. Is there any way around, or a better method? My solution at the moment(untried) is to bind the correct amount of variables to the results with getRecords, and then bind separately as a different name with getHtml.

What are the advanatges of binding, and is it necessary.

<?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
". 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>";
//
} 
}
}
}

I would also like to know what is wrong with my img src statement..., I feel I am mising something elementary such as a slash or quote.

edit: The code now displays an error after replace * with column names, however the while loop is never entered, and hence no actions are performed.

Answer 1

You may need to explicity state the column names in your SELECT rather than use *, as per the examples for MySQLi bind_result().

In relation to the img line, you have an extra " after .jpg

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

should be

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

Also, you don't actually need to break out of the string and concatenate the variables because using " will cause the string to be parsed for variables anyway.