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\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>'; // }  } } } 

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.