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Editorial Team
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Asked: 2026-05-26T17:56:29+00:00

I have simple form: <form action=add.php method=post > <input name=name maxlength=30/><br/> <textarea cols=80 name=description

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I have simple form:

   <form action="add.php" method="post" >
        <input  name="name"  maxlength="30"/><br/>
        <textarea  cols="80" name="description" rows="10">
        </textarea><br/>

        <table>
            <thead>
                   <tr>
                       <th></th>
                       <th width="200px">Shop list</th>
                   </tr>
            </thead>
             <tbody div class ="table">
            <?php
            $result = mysql_query("SELECT shop_id, name FROM shop") or die(mysql_error());
            if(mysql_num_rows($result) > 0) {
                while($row = mysql_fetch_assoc($result)) {
                echo '<tr> 
                         <td>
                         <input type="checkbox" name="identifer[]" value="'.$row['shop_id'].'" /> <br /></td>  
                         <td>'.ucfirst($row['shop']).'</td> 
                      </tr>   ';    
                                                         }
                                            }
                  ?>

    </tbody></table>
<input type="submit" value="Add">
</form>

I want to save the results in database in two different tables: book (book_id, name, description) and places. In places table I want to save shops where you can buy that book (places_id, book_id, shop_id).

I have add.php file (it’s not working):

    <?php
    $name = $_POST['name'];
    $description = $_POST['description'];



        $identifer =($_POST['identifer']);
        if (isset($identifer)){

            $id_arr = implode(',', $identifer);
            $result = mysql_query("INSERT INTO places (places_id, book_id, shop_id) VALUES (NULL, NULL ($id_arr))") or die(mysql_error());

        }   




$q = "INSERT INTO baldas (book_id, name, description) VALUES (NULL, '$name', '$description')";

$result2 = mysql_query($q) or die(mysql_query());   

    ?>

I’m confused how I have to save results in two different tables in the same time, also I have problems with identifying which checkboxes are checked and to write the results in database, especially I have no idea how to deal with book_id.
Any advice would be helpful.

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1 Answer

  1. Editorial Team

    I have no idea how to deal with book_id

    You would first insert the values into table baldas, then call mysql_insert_id()

    <?php
  $q = "INSERT INTO baldas (book_id, name, description) VALUES (NULL, '$name', '$description')";
  $result = mysql_query($q) or die(mysql_query());

  $bookID = mysql_insert_id();

  // CODE TO INSERT INTO `places` TABLE USING $bookID //
?>

    I have problems with identifying which checkboxes are checked

    The way you have them, you’d have to loop through the $_POST['identifier'] array to identify the shop_id

    <?php
  foreach((array)$_POST['identifier'] as $shopID) { 
      $q2 = "INSERT INTO places (place_id, book_id, shop_id) VALUES (NULL, '$bookID', '$shopID')";    
      $result2 = mysql_query($q2) or die(mysql_error()); 
  }
?>

    If it’s not checked it won’t show up in the $_POST

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