合并来自 MySQL 数据库的 PDF Blob 文件
如何将多个 PDF blob 文件合并为一个 PDF 以便可以打印？
<?php
include 'config.php';
include 'connect.php';
$session= $_GET[session];
$query = "
SELECT $tbl_uploads.username, $tbl_uploads.description,
$tbl_uploads.type, $tbl_uploads.size, $tbl_uploads.content,
$tbl_members.session
FROM $tbl_uploads
LEFT JOIN $tbl_members
ON $tbl_uploads.username = $tbl_members.username
WHERE $tbl_members.session= '$session'";
$result = mysql_query($query) or die('Error, query failed');
while(list($username, $description, $type, $size, $content) =
mysql_fetch_array($result))
{
header("Content-length: $size");
header("Content-type: $type");
header("Content-Disposition: inline; filename=$username-$description.pdf");
}
echo $content;
mysql_close($link);
exit;
?>
How do I combine numerous PDF blob files into a single PDF so that can then be printed?
<?php
include 'config.php';
include 'connect.php';
$session= $_GET[session];
$query = "
SELECT $tbl_uploads.username, $tbl_uploads.description,
$tbl_uploads.type, $tbl_uploads.size, $tbl_uploads.content,
$tbl_members.session
FROM $tbl_uploads
LEFT JOIN $tbl_members
ON $tbl_uploads.username = $tbl_members.username
WHERE $tbl_members.session= '$session'";
$result = mysql_query($query) or die('Error, query failed');
while(list($username, $description, $type, $size, $content) =
mysql_fetch_array($result))
{
header("Content-length: $size");
header("Content-type: $type");
header("Content-Disposition: inline; filename=$username-$description.pdf");
}
echo $content;
mysql_close($link);
exit;
?>
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评论（2）
你不会——至少不会简单地组合字节流。您需要处理每个文件，并将它们合并到一个新的 PDF 文档中。
一些指针（也许是解决方案之一）适合您，具体取决于您所在的平台：
PHP - 如何组合/合并多个 pdf
如何通过程序合并pdf中的图像？
需要将多个 pdf 合并为一个包含目录部分的 PDF
You don't - at least not by simply combining the byte streams. You will need to process each file, and merge them into a new PDF document.
Some pointers, maybe one of the solutions, depending on the platform you're on, works for you:
PHP - How to combine / merge multiple pdf’s
How to combine images inside pdf by programme?
Need to merge multiple pdf’s into a single PDF with Table Of Contents sections
pdftk 将合并多个 PDF 文件，以及 PDFsam..
pdftk will merge multiple PDF files, as well as PDFsam..