FPDF，从mysql表生成选定值的pdf

Question

您好，下面的朋友是我的php代码，它从MYSQL表（所有行）生成PDF，并且像任何东西一样工作，我需要的是为选定行生成报告，仅说例如存储在数组中的第1行和第3行（ $ sel），我不知道该如何使用for，foreach和while循环来实现这一目标……我们将不胜感激。

这是我的数据库表

 ----------------------------------
| id | company            | total  |
 ----------------------------------
| 1  | ABC                | 1000   |
| 2  | XYZ                |  500   |
| 3  | PZX                |  100   |
 ----------------------------------

这是我的php页面，该页面在加载时生成pdf并提供该文件的下载链接

<?php

require('u/fpdf.php');//fpdf path
include_once('db_connect.php');// my db connection

$sel = array (1,3);

$result=mysql_query("select * from `receipt`  ");

//Initialize the 3 columns and the total
$c_code = "";
$c_name = "";
$c_price = "";
$total = 0;

//For each row, add the field to the corresponding column
while($row = mysql_fetch_array($result))
{ 
   $code =$row['id'];
   $name = substr($row['company'],0,20);
   $real_price = $row['total'];
   $show =$row['total'];

 $c_code = $c_code.$code."\n";
 $c_name = $c_name.$name."\n";
 $c_price = $c_price.$show."\n";

//Sum all the Prices (TOTAL)
    $total = $total+$real_price;
}
mysql_close();

$total = $total;

//Create a new PDF file
$pdf=new FPDF();
$pdf->AddPage();

//Now show the 3 columns
$pdf->SetFont('Arial','',12);
$pdf->SetY(26);
$pdf->SetX(45);
$pdf->MultiCell(20,6,$c_code,1);
$pdf->SetY(26);
$pdf->SetX(65);
$pdf->MultiCell(100,6,$c_name,1);
$pdf->SetY(26);
$pdf->SetX(135);
$pdf->MultiCell(30,6,$c_price,1,'R');
$pdf->SetX(135);
$pdf->MultiCell(30,6,'$ '.$total,1,'R');

$filename="invoice.pdf";
$pdf->Output($filename,'F');

echo'<a href="invoice.pdf">Download your Invoice</a>';

?>

上面的代码给我这样的结果-

 ----------------------------------
| 1  | ABC                | 1000   |
| 2  | XYZ                |  500   |
| 3  | PZX                |  100   |
 ----------------------------------
                          | 1600   |
                           --------

我希望我的结果像这样显示

 ----------------------------------
| 1  | ABC                | 1000   |
| 3  | PZX                |  100   |
 ----------------------------------
                          | 1100   |
                           --------

再次感谢。

Answer 1

只需对bove代码进行少量修改（使用where子句），以下代码即可正常工作

$result=mysql_query("select * from `receipt` where id IN(1,3) "); 

通过使用爆破音将变量分开，可以使用尽可能多的变量，例如，上一页中选定的复选框数组值

<?php

require('u/fpdf.php');//fpdf path
include_once('db_connect.php');// my db connection

$sel =array (1,3);// can use $sel =$_GET['sel']; where $_GET['sel'], sel is a checkbox array value received from prev page..

$id=implode(",",$sel);//seperating ',' from array

$result=mysql_query("select * from `receipt` where id IN($id) ");
//Initialize the 3 columns and the total
$c_code = "";
$c_name = "";
$c_price = "";
$total = 0;

//For each row, add the field to the corresponding column
while($row = mysql_fetch_array($result))
{ 
   $code =$row['id'];
   $name = substr($row['company'],0,20);
   $real_price = $row['total'];
   $show =$row['total'];

 $c_code = $c_code.$code."\n";
 $c_name = $c_name.$name."\n";
 $c_price = $c_price.$show."\n";

//Sum all the Prices (TOTAL)
    $total = $total+$real_price;
}
mysql_close();

$total = $total;

//Create a new PDF file
$pdf=new FPDF();
$pdf->AddPage();

//Now show the 3 columns
$pdf->SetFont('Arial','',12);
$pdf->SetY(26);
$pdf->SetX(45);
$pdf->MultiCell(20,6,$c_code,1);
$pdf->SetY(26);
$pdf->SetX(65);
$pdf->MultiCell(100,6,$c_name,1);
$pdf->SetY(26);
$pdf->SetX(135);
$pdf->MultiCell(30,6,$c_price,1,'R');
$pdf->SetX(135);
$pdf->MultiCell(30,6,'$ '.$total,1,'R');

$filename="invoice.pdf";
$pdf->Output($filename,'F');

echo'<a href="invoice.pdf">Download your Invoice</a>';

?>

Answer 2

$result=mysql_query("select * from `receipt` where id IN(1,3) ");