php代码，用自定义代码生成多行

每次使用循环时，它都会重置回输入的值（例如，coupon_no）

应该使用bookno、couponno和receiptno的值作为起点，使用totalbook、totalcoup和totalrec的值作为循环条件。随走随增：

<?php
$bookno= $_POST['bookcode'];               
$totalbook= $_POST['book_no2']; 
$receiptno = $_POST['receiptcode'];
$totalrec= $_POST['receipt_no'];                        
$couponno= $_POST['couponcode'];                            
$totalcoup= $_POST['coupon'];   

for ($book_counter=1; $book_counter<=$totalbook; $book_counter++)
{   
    for($rec_counter=1; $rec_counter<=$totalrec; $rec_counter++)
    {
        for($coup_counter=1; $coup_counter<=$totalcoup; $coup_counter++)
        {   
            $insertrow = $database->insertRow(
                "INSERT INTO scheme_master (book_no2,receipt_no,coupon) VALUES (:book_no2,:receipt_no,:coupon)",
                array(':receipt_no'=>$receiptno,':book_no2'=>$bookno,':coupon'=>$couponno));
            $couponno++;
        }
        $receiptno++;
    }
    $bookno++;
}
?>

NB这还没有经过测试，但它应该会让你走上正确的路径

编辑的代码（带有关于未使用变量的注释）

<?php
if (isset($_POST['save']))
{
    /*
     * No checking for validity of values
     */
    $bookcode = $_POST['bookcode'];
    $book_no2 = $_POST['book_no2'];
    $receiptcode = $_POST['receiptcode'];
    $receipt_no = $_POST['receipt_no'];
    $couponcode = $_POST['couponcode'];
    $coupon = $_POST['coupon'];
    $Temp_receipt = $receiptcode + $receipt_no;
    $Temp_coupon = $couponcode + $coupon;

    for ($row1 = $bookcode + 1; $row1 <= $bookcode + $book_no2; $row1++) // what happens if $bookcode or $book_no2 are negative? Why start at +1 instead of what user entered?
    {
        for ($row = $receiptcode + 1; $row <= $Temp_receipt; $row++) // what happens if $receiptcode or $receipt_no are negative? Why start at +1 instead of what user entered?
        {
            /*
             * Each run of this query will slow down this whole code
             */
            $query1 = $database -> getRow("SELECT if (receipt_no is null, 1,MAX(receipt_no)+1) AS max1 FROM scheme_master;");
            $top = $query1['max1'];
            /*
             * Initialised but $Pric is never used apart from an assignment
             */
            $Pric = "";
            $loopCount = 0; // initialised and updated but not used anywhere in this code
            for ($row2 = $couponcode + 1; $row2 <= $Temp_coupon; $row2++) // what happens if $couponcode or $coupon are negative? Why start at +1 instead of what user entered
            {
                /*
                 * Each run of this query will slow down this whole code
                 */
                $query2 = $database -> getRow("SELECT if (coupon is null, 1, MAX(coupon)+1) AS max2 FROM scheme_master;");
                $coup = $query2['max2'];
                /*
                 * $value is never used
                 */
                $value = $loopCount+=2; // the same as $value=$loopCount++ +1; No idea why it's here as it is not used at all in this code
                /*
                 * These values are never used
                 */
                $code = '- mths';       //unused. As it never changes, should be initialised earlier
                $Pric = $value.$code;   //unused
                $insertrow = $database -> insertRow("INSERT INTO scheme_master (book_no2,receipt_no,coupon) VALUES (:book_no2,:receipt_no,:coupon)", array(':receipt_no' => $top, ':book_no2' => $row1, ':coupon' => $coup));
            }
        }
    }
    $_SESSION['message'] = "Books Created Successfully";
}
?>