php 使用自定义代码生成多行的代码

Question

前-

如果用户在文本框中输入

bookno - 101 totalbook - 2

receiptno - 500 totalrec - 2

优惠券 - 700 总优惠券 - 2

然后输出如下 table。

在这个table中，优惠券号总是unique.and收据没有来两次，因为每张收据都有两张优惠券。

前-

书票券

101 500 - 700

101 500 - 701

101 - 501 - 702

101 - 501 - 703

102 - 502 - 704

102 - 502 - 705

102 - 503 - 706

102 - 503 - 707

现在第二次输入

书本代码 = 800 book_no2 = 802

收据代码 = 1600 Temp_receipt = 1602

优惠券代码 = 1800
Temp_coupon = 1802

然后生成如下输出

书票券 801 -1601 1801 801 -1601 -1802 801 -1602 -1803 801 -1602 -1804 802 -1603 -1805 802 -1603 -1806 802 -1604 -1807 802 -1604 -1808

我尝试了下面的代码但无法正常工作。

    <?php 

    if(isset($_POST['save']))
    {       

                $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++)
                    {   

                    for($row=$receiptcode+1;$row<=$Temp_receipt;$row++)
                        {   

                            $query = $database->getRow("SELECT MAX(receipt_no) AS max1 FROM scheme_master;");
                                if($query['max1']=='')
                                {                           
                                    $largestNumber = $receiptcode;
                                    $top = $largestNumber + 1;                              

                                }
                                else
                                {
                                    $largestNumber = $query['max1'];
                                    $top = $largestNumber + 1;  
                                }       

                                $Pric = "";                         
                                $loopCount = 0;
                                for($row2=$couponcode+1;$row2<=$Temp_coupon;$row2++)
                                {           

                                    $query = $database->getRow("SELECT MAX(coupon) AS max2 FROM scheme_master;");
                                    if($query['max2']=='')
                                    {                           
                                        $largestcoupon = $couponcode;
                                        $coup = $largestcoupon + 1;                                 
                                    }
                                    else
                                    {
                                        $largestcoupon = $query['max2'];
                                        $coup = $largestcoupon + 1; 
                                    }   
                                    $value = $loopCount++ + 1;
                                    $code = '- mths';
                                    $Pric=$value.$code;

$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";                        
    }       

?>

我得到如下输出 table...

书票券

101 - 501 -701

101 - 502 -702

102 - 501 -701

102 - 502 -702

Answer 1

每次使用循环时，它都会重置回输入的值（例如，coupon_no）

您应该使用 bookno、couponno 和 receiptno 的值作为起点，并使用 totalbook、totalcoup 和 [=16] 的值=] 作为循环条件。边走边增加数字：

<?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++;
}
?>

注意这还没有经过测试，但它应该会让你走上正确的道路

Answer 2

编辑后的代码（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";
}
?>

php 使用自定义代码生成多行的代码

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