我正在尝试使用 dompdf 将 PHP 页面转换为 PDF，但我不确定最好的方法。我已经编写了我的页面，我希望它如何以标准 HTML/PHP 呈现，并希望它像 PDF 一样显示：
我的 PHP 代码如下。我相信我需要将我的代码放入$html变量中以将其解析为 dompdf，但我是一个 PHP 新手，所以希望能得到一些帮助，了解实现这一目标的最佳方法是什么。显然，页面的样式都是从外部 CSS 文件中引入的，所以我不确定这是否是一个问题？
<?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！），我的新代码如下所示，但是当我尝试查看监视列表时，我现在得到的只是一个普通的空白页面。我已经在没有 dompdf 的情况下对其进行了测试，页面显示完美，显示了我希望它显示的所有信息，并正确显示。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，打开错误报告可以让我获得以下信息：
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