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使用dompdf将页面转换为PDF

phppdfdompdfmpdf
5
我正在尝试使用dompdf将PHP页面转换为PDF，但我不确定最佳方法是什么。我已经按照标准的HTML/PHP编写了页面，并希望以PDF格式显示如下：

Desired output

我的PHP代码如下。我相信我需要将代码放入$html变量中，以便将其解析为dompdf，但我是PHP新手，因此需要一些帮助来实现这个目标。显然，页面的样式都是从外部CSS文件中引入的，所以我不确定是否会出现问题？

<?php
    include("checklog.php"); 
    require_once("watchlist-controller.php");
    require_once("dompdf/dompdf_config.inc.php");
    $html = 
?>
<!DOCTYPE html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <link rel="shortcut icon" href="img/fav.ico">
        <link rel="apple-touch-icon" href="img/apple-touch-icon.png">
        <title>Screening - Your ticket to your movies - <?php echo $watchlist_name; ?></title>
        <meta name="description" content="Screening is a brand new take on the traditional movie database, fusing social networking and multimedia to provide a clear, concise experience allowing you to share your favourite movies, and discover new classics.">
        <meta name="keywords" content="Movies, Films, Screening, Discover, Watch, Share, experience, database, movie database, film database, share film, share films, discover film, discover films, share movie, share movies, discover movie, discover movies">

        <!-- Bootstrap -->
        <link href="css/bootstrap.css" rel="stylesheet" media="screen">
        <link href="css/bootstrap-responsive.css" rel="stylesheet">
        <link href="css/custom-bootstrap.css" rel="stylesheet">
        <link rel="stylesheet" href="fonts.css" type="text/css" />
        <link rel="stylesheet/less" type="text/css" href="css/stylesheet.less" />
        <script src="js/less-1.3.3.min.js" type="text/javascript"></script>
        <script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/jquery/1.8/jquery.min.js"></script>
        <script src="js/bootstrap.min.js"></script>
    </head>

    <body>
        <div class="container"><?php 
            require_once ("header.php");?>
            <div id="main" class="well main-content">
                <p class="page-title"><?php echo $watchlist_name; ?></p>
                <div class="row-fluid">
                    <section class="span12 watchlist-holder film-list"><?php
                        if (count($films) == 0) {?>
                            <div class="alert alert-info">This Watchlist is empty! Why not visit a movie page to add something to it?</div><?php
                        } else {?>
                            <ul class="unstyled"><?php
                                foreach($films as $key => $film_item) {
                                    include("watchlist-film-controller.php");?>
                                    <li class="well list-item clearfix">
                                        <div class="row-fluid">
                                            <a href="movie.php?id=<?php echo $rt_id; ?>" class="span1 pull-left" title="<?php echo $title; ?>"><img src="<?php echo $poster_thumb; ?>" alt="<?php echo $title; ?> poster" title="<?php echo $title; ?> poster" /></a>

                                            <div class="span11 movie-info">
                                                <p class="search-title"><a href="movie.php?id=<?php echo $film_item['film_id']; ?>" title="<?php echo $title; ?> (<?php echo $year; ?>)"><?php echo $title; ?></a> <small>(<?php echo $year; ?>)</small></p><?php

                                                if ($critics_consensus == "") {?>
                                                    <p class="watchlist-synopsis">No overview available</p><?php
                                                } else {?>
                                                    <p class="watchlist-synopsis"><?php echo $critics_consensus; ?></p><?php
                                                }?>
                                            </div>
                                        </div>
                                    </li><?php
                                }?>
                            </ul><?php
                        }?>
                    </section>
                </div>
            </div><?php
            include 'footer.html'; ?>
        </div>
    </body>
</html><?php
$dompdf = new DOMPDF();
$dompdf->load_html($html);
$dompdf->render();
$dompdf->stream("sample.pdf");?>

更新

根据BrianS的评论（谢谢！），我的新代码如下，但是当尝试查看监视列表时，我现在只得到一个空白页面。我已经测试了它不使用dompdf的东西，页面显示完美，显示所有我想要显示的信息，并且呈现正确。我还用CSS替换了LESS文件并删除了所有JS。

<?php
    include("checklog.php");
    require_once("watchlist-controller.php");
    require_once("dompdf/dompdf_config.inc.php");
    ob_start();
?>
<!DOCTYPE html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <link rel="shortcut icon" href="img/fav.ico">
        <link rel="apple-touch-icon" href="img/apple-touch-icon.png">
        <title>Screening - Your ticket to your movies - <?php echo $watchlist_name; ?></title>
        <meta name="description" content="Screening is a brand new take on the traditional movie database, fusing social networking and multimedia to provide a clear, concise experience allowing you to share your favourite movies, and discover new classics.">
        <meta name="keywords" content="Movies, Films, Screening, Discover, Watch, Share, experience, database, movie database, film database, share film, share films, discover film, discover films, share movie, share movies, discover movie, discover movies">

        <!-- Bootstrap -->
        <link href="css/bootstrap.css" rel="stylesheet" media="screen">
        <link href="css/bootstrap-responsive.css" rel="stylesheet">
        <link href="css/custom-bootstrap.css" rel="stylesheet">
        <link rel="stylesheet" href="fonts.css" type="text/css" />
        <link href="css/stylesheet.css" rel="stylesheet">
    </head>

    <body>
        <div class="container">
            <header>
                <div class="navbar navbar-inverse">
                    <div class="navbar-inner">
                        <div class="container">
                            <a href="index.php" title="Screening"><img src="img/blue_logo.png" class="pull-left" title="Screening - Your ticket to your movies" alt="Screening - Your ticket to your movies" /></a>
                            <a class="brand" href="index.php">Screening</a>
                        </div>
                    </div>
                </div>
            </header>
            <div id="main" class="well main-content">
                <p class="page-title">"<?php echo $watchlist_name; ?>" Watchlist by <?php echo $first_name; ?> <?php echo $last_name; ?></p>
                <div class="row-fluid">
                    <section class="span12 watchlist-holder film-list">
                        <ul class="unstyled"><?php
                            foreach($films as $key => $film_item) {
                                include("watchlist-film-controller.php");?>
                                <li class="well list-item clearfix">
                                    <div class="row-fluid">
                                        <a href="movie.php?id=<?php echo $rt_id; ?>" class="span1 pull-left" title="<?php echo $title; ?>"><img src="<?php echo $poster_thumb; ?>" alt="<?php echo $title; ?> poster" title="<?php echo $title; ?> poster" /></a>

                                        <div class="span11 movie-info">
                                            <p class="search-title"><a href="movie.php?id=<?php echo $film_item['film_id']; ?>" title="<?php echo $title; ?> (<?php echo $year; ?>)"><?php echo $title; ?></a> <small>(<?php echo $year; ?>)</small></p><?php
                                            if ($critics_consensus == "") {?>
                                                <p class="watchlist-synopsis">No overview available</p><?php
                                            } else {?>
                                                <p class="watchlist-synopsis"><?php echo $critics_consensus; ?></p><?php
                                            }?>
                                        </div>
                                    </div>
                                </li><?php
                            }?>
                        </ul>
                    </section>
                </div>
                <p>This Watchlist was generated by <span class="bold">Screening</span>.</p>
            </div>
        </div>
    </body>
</html><?php
$html = ob_get_clean();
$dompdf = new DOMPDF();
$dompdf->load_html($html);
$dompdf->render();
$dompdf->stream("watchlist.pdf");?>

此外，如果有帮助的话，打开错误报告会得到以下信息：
Notice: Undefined variable: submit in \\ICS-FILESHARE\WWW\newmedia.leeds.ac.uk\ug10\cs10aer\screening\watchlist-controller.php on line 20
Warning: mysql_fetch_assoc() expects parameter 1 to be resource, boolean given in \\ICS-FILESHARE\WWW\newmedia.leeds.ac.uk\ug10\cs10aer\screening\watchlist-controller.php on line 107
Notice: Undefined index: name in \\ICS-FILESHARE\WWW\newmedia.leeds.ac.uk\ug10\cs10aer\screening\watchlist-controller.php on line 111
Notice: Undefined index: category in \\ICS-FILESHARE\WWW\newmedia.leeds.ac.uk\ug10\cs10aer\screening\watchlist-controller.php on line 112
Notice: Undefined index: description in \\ICS-FILESHARE\WWW\newmedia.leeds.ac.uk\ug10\cs10aer\screening\watchlist-controller.php on line 113
Notice: Undefined index: hash in \\ICS-FILESHARE\WWW\newmedia.leeds.ac.uk\ug10\cs10aer\screening\watchlist-controller.php on line 114
Warning: mysql_fetch_assoc() expects parameter 1 to be resource, boolean given in \\ICS-FILESHARE\WWW\newmedia.leeds.ac.uk\ug10\cs10aer\screening\watchlist-controller.php on line 119
Warning: require_once(//ICS-FILESHARE/WWW/newmedia.leeds.ac.uk/ug10/cs10aer/screening/dompdf/lib/php-font-lib/classes/font.cls.php): failed to open stream: No such file or directory in \\ICS-FILESHARE\WWW\newmedia.leeds.ac.uk\ug10\cs10aer\screening\dompdf\dompdf_config.inc.php on line 335
Fatal error: require_once(): Failed opening required '//ICS-FILESHARE/WWW/newmedia.leeds.ac.uk/ug10/cs10aer/screening/dompdf/lib/php-font-lib/classes/font.cls.php' (include_path='.;C:\php\pear') in \\ICS-FILESHARE\WWW\newmedia.leeds.ac.uk\ug10\cs10aer\screening\dompdf\dompdf_config.inc.php on line 335
试试这个：https://github.com/mreiferson/php-wkhtmltox - GBD
1
一些通用建议：如果你只是将输出发送到浏览器，那么运行代码并查看结果不会有什么坏处。在这种情况下，你会得到一个错误，你可以利用它来尝试找出你的代码中缺少了什么。错误并不总是准确地报告问题的源头，但在大多数情况下，它们会给你提供所需的信息来纠正任何语法问题。 - BrianS
3个回答
7

有多种方法可以实现你想要的功能。你目前的逻辑应该可以工作，但语法不太正确。如果你想继续使用当前的结构，你可以使用输出缓冲区。

<?php
include("checklog.php"); 
require_once("watchlist-controller.php");
require_once("dompdf/dompdf_config.inc.php");
ob_start();
?>

<html>...</html>

<?php
$html = ob_get_clean();
$dompdf = new DOMPDF();
$dompdf->load_html($html);
$dompdf->render();
$dompdf->stream("sample.pdf");
?>

链接样式表是可以的。JavaScript不行，dompdf不支持客户端JS。所以，如果你需要LESS样式表，则必须将其转换为标准CSS。

嗨，感谢您的帮助！我很感激您的协助。我已经按照您的建议进行了更改，但是当我尝试下载PDF时，现在只得到一个空白页面。根据您的评论，我已经更新了原始帖子中的新代码。 - Alex Ryans
大多数这些警告/通知与dompdf无关。您看到的似乎是缺少变量导致您的MySQL查询失败。始终检查查询的状态。例如，$query = mysql_query(...); if ($query) {...} else {...}。 - BrianS
通常情况下，执行会继续通过通知/警告，但是出现了致命错误，与dompdf有关。最后一条消息是一个错误，指示缺少php-font-lib。如果您从github下载了dompdf，则必须单独下载php-font-lib库。 - BrianS
谢谢。我已经下载了php-font-lib并将其上传到相应的空目录中，现在PDF文件可以成功创建，但是无法打开。如果我将其流式传输到浏览器而不是下载它，我会得到“无法加载PDF”的错误提示，而尝试打开已下载的副本也会导致错误。 - Alex Ryans
让我们在聊天中继续这个讨论。 - BrianS
显示剩余2条评论
4
使用以下简单的代码。
require_once 'dompdf/autoload.inc.php';
use Dompdf\Dompdf;
$dompdf = new Dompdf();

$html = 'Insert full HTML content';
$dompdf->loadHtml($html);
$dompdf->setPaper('A4', 'landscape');
$dompdf->render();
$dompdf->stream("codexworld",array("Attachment"=>0));

您可以从这里找到使用Dompdf将网页转换为PDF的完整指南 - 使用Dompdf在PHP中将HTML转换为PDF。
0
我建议使用WKHTMLTOPDF，它提供了相当多的选项。
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