錯誤打印PDF與DOMPDF

-1

我試圖創建按鈕使用DOMPDF保存後的PDF，但結果卻是一個錯誤：錯誤打印PDF與DOMPDF

Fatal error: Uncaught exception 'DOMPDF_Exception' with message 
'Requested HTML document contains no data.' in 
E:\xampp\htdocs\forum_seo\pages\posts\dompdf\include\frame_tree.cls.php:114 
Stack trace: #0 
E:\xampp\htdocs\forum_seo\pages\posts\dompdf\include\dompdf.cls.php(533): 
Frame_Tree->build_tree() #1 
E:\xampp\htdocs\forum_seo\pages\posts\dompdf\include\dompdf.cls.php(696): 
DOMPDF->_process_html() #2 
E:\xampp\htdocs\forum_seo\pages\posts\post_download.php(43): 
DOMPDF->render() #3 {main} thrown in 
E:\xampp\htdocs\forum_seo\pages\posts\dompdf\include\frame_tree.cls.php 
on line 114

文件post_download.php

<html> 
<head> 
<meta charset="utf8" /> 
<link rel="stylesheet" type="text/css" href="../../css/style1.css"/> 
</head> 
<body> 

<?php 
require_once '../connect.php'; 
$sql_head_post="SELECT *,seo_members.id as idp ,seo_articles.id as id_post,seo_articles.num_like as postlike,seo_members.num_like as userlike,DATE_FORMAT(dateattend,'%d-%m-%Y') as date_join, DATE_FORMAT(date_post, '%d-%m-%Y') AS _date, DATE_FORMAT(date_post, '%h:%i %p') AS _time 
        FROM seo_articles 
        INNER JOIN seo_subcate ON seo_articles.id_cate = seo_subcate.id 
        INNER JOIN seo_members ON seo_articles.id_user = seo_members.id 
        WHERE seo_articles.id =$_GET[dl_post] 
        LIMIT 1"; 
    $q_post_det= mysqli_query($con,$sql_head_post); 
    $r_post_det=mysqli_fetch_array($q_post_det); 
?> 
<div class='title' style='display: block;'> 
     <div style='float:left;width:1000px;text-overflow: ellipsis;word-wrap: break-word;' > 
      <b class='title-post'><?php echo "$r_post_det[article]";?></b> 
      <p>cate: <?php echo "$r_post_det[subcate], post by $r_post_det[username], $r_post_det[_date], $r_post_det[_time]";?></p> 
     </div> 
    </div> 

    <div class='detaild' > 
     <hr style='clear:both; border:1px solid #555;border-style: dashed' /> 
     <p><?php echo "$r_post_det[content]";?></p> 
    </div> 
</body> 

</html> 

<?php 
require_once("dompdf/dompdf_config.inc.php"); 
ob_start(); 
$content = ob_get_clean(); 
$dompdf = new DOMPDF(); 
$dompdf->load_html($content); 
$dompdf->render(); 
$dompdf->stream("$r_post_det[article].pdf"); 
?>

來源

2015-03-31 Mr D

如果上面顯示的PHP頁面是生成要轉換爲PDF的HTML的頁面，您可能需要移動'ob_start（）;'聲明腳本的頂部：

<?php 
ob_start(); 
?> 
<html> 
<head> 
...

目前沒有輸出的ob_start()和$content = ob_get_clean();之間捕獲這樣$content將永遠是空的。

來源

2015-03-31 09:26:28 mhall

錯誤打印PDF與DOMPDF

回答

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