php - How to get user information and item into the same table in the database -


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i need assistance trying information orders looping through. need able order information above user information user information form, can submit items , user information database . looks need submit multiple items attached user ordered it.

here partial code 

if(isset($_post["get_cart_product"]) || isset($_post["cart_checkout"])){             $uid = $_session["uid"];             $sql = "select * cart user_id = `$uid` ";             $run_query = mysqli_query($con,$sql);             $count = mysqli_num_rows($run_query);             if($count > 0){                 $no = 1;                 $total_amt = 0;                 while($row=mysqli_fetch_array($run_query)){                     $id = $row["id"];                     $pro_id = $row["p_id"];                     $pro_name = $row["product_title"];                     $pro_image = $row["product_image"];                     $qty = $row["qty"];                     $pro_price = $row["price"];                     $total = $row["total_amt"];                     $price_array = array($total);                     $total_sum = array_sum($price_array);                     $total_amt = $total_amt + $total_sum;                     setcookie("ta",$total_amt,strtotime("+1 day"),"/","","",true);                     if(isset($_post["get_cart_product"])){                         echo "                         <div class='row'>                             <div class='col-md-3 col-xs-3'>$no</div>                             <div class='col-md-3 col-xs-3'><img src='assets/product_images/$pro_image' width='60px' height='50px'></div>                             <div class='col-md-3 col-xs-3'>$pro_name</div>                             <div class='col-md-3 col-xs-3'>$.$pro_price.00</div>                         </div>                     ";                     $no = $no + 1;                     }else{                         echo "                             <div class='row'>                                     <div class='col-md-2 col-sm-2'>                                         <div class='btn-group'>                                             <a href='#' remove_id='$pro_id' class='btn btn-danger btn-xs remove'><span class='glyphicon glyphicon-trash'></span></a>                                             <a href='' update_id='$pro_id' class='btn btn-primary btn-xs update'><span class='glyphicon glyphicon-ok-sign'></span></a>                                         </div>                                     </div>";                                        echo"                                      <form action='user_information.php' id='form1' method='post'>                                     <div class='col-md-2 col-sm-2'><img src='assets/product_images/$pro_image' width='50px' height='60'></div>                                     <div class='col-md-2 col-sm-2'><input name='name' type='text' class='form-control qty' pid='$pro_name ' id='qty-$pro_name ' value='$pro_name ' ></div>                                     <div class='col-md-2 col-sm-2'><input name='qty' type='text' class='form-control qty' pid='$pro_id' id='qty-$pro_id' value='$qty' ></div>                                     <div class='col-md-2 col-sm-2'><input name='price' type='text' class='form-control price' pid='$pro_id' id='price-$pro_id' value='$pro_price' disabled></div>                                     <div class='col-md-2 col-sm-2'><input name ='total' type='text' class='form-control total' pid='$pro_id' id='total-$pro_id' value='$total' disabled></div>                                 </div>";                             }                         }                                       echo"                                          <h3>employee information</h3>                                              <label>lan id</label>                                             <input type='text' name='lanid' id='lanid'  autocomplete='off'  class='form-control' >                                             <label>employee name</label>                                             <input type='text' name='employeename' id='name'   autocomplete='off'  class='form-control'>                                             <label>department</label>                                             <select name='department' id='department'  class='form-control'>                                                 <option value =''>select department...</option>                                                 <option value ='other'> other</option>                                              </select>                                          <label>cost center</label>                                         <input type='text' class='form-control' name='costcenter' value=''>                                         <br><br><br>                                         <input type='submit' class='btn btn-primary' value='submit'>                                      </form>";

you can not use single-quoted ' integer variable. read more when use single quotes, double quotes, , backticks in mysql

use of query 

 $sql = "select * cart user_id = `$uid` ";

instead of this

$sql = "select * cart user_id = '$uid'";

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