dompdf缓慢并产生HTTP请求失败错误

时间：2015-09-28 12:50:26

标签： laravel-5 dompdf

我正在使用带laravel 5的dompdf来生成配置文件的pdf但是它需要超过15分钟，然后它显示错误。流程就像浏览器中的打开显示配置文件页面，页面有链接下载为pdf与相同操作的URL（显示配置文件）与额外的参数pdf=yes然后我使用if条件来检查pdf调用

Exception in PDF.php line 219: DOMDocument::loadHTML(): htmlParseEntityRef: no name in Entity, line: 41
DOMDocument::loadHTML(): ID personal-info-2 already defined in Entity, line: 104
DOMDocument::loadHTML(): ID personal-info-2 already defined in Entity, line: 110
DOMDocument::loadHTML(): ID personal-info-2 already defined in Entity, line: 116
DOMDocument::loadHTML(): ID personal-info-2 already defined in Entity, line: 122
DOMDocument::loadHTML(): ID personal-info-2 already defined in Entity, line: 128
DOMDocument::loadHTML(): ID personal-info-2 already defined in Entity, line: 134
DOMDocument::loadHTML(): ID personal-info-2 already defined in Entity, line: 140
DOMDocument::loadHTML(): ID personal-info-2 already defined in Entity, line: 145
DOMDocument::loadHTML(): ID personal-info-2 already defined in Entity, line: 150
DOMDocument::loadHTML(): ID personal-info-2 already defined in Entity, line: 155
DOMDocument::loadHTML(): ID personal-info-2 already defined in Entity, line: 160
DOMDocument::loadHTML(): ID personal-info-2 already defined in Entity, line: 165
DOMDocument::loadHTML(): ID personal-info-2 already defined in Entity, line: 170
DOMDocument::loadHTML(): ID personal-info-2 already defined in Entity, line: 177
DOMDocument::loadHTML(): ID personal-info-2 already defined in Entity, line: 188
DOMDocument::loadHTML(): ID personal-info-2 already defined in Entity, line: 193
DOMDocument::loadHTML(): ID personal-info-2 already defined in Entity, line: 211
DOMDocument::loadHTML(): ID personal-info-2 already defined in Entity, line: 216
DOMDocument::loadHTML(): ID personal-info-2 already defined in Entity, line: 222
DOMDocument::loadHTML(): ID personal-info-2 already defined in Entity, line: 227
DOMDocument::loadHTML(): Tag footer invalid in Entity, line: 330
DOMDocument::loadHTML(): Unexpected end tag : div in Entity, line: 333
DOMDocument::loadHTML(): Unexpected end tag : div in Entity, line: 334
DOMDocument::loadHTML(): Unexpected end tag : span in Entity, line: 355
DOMDocument::loadHTML(): Unexpected end tag : span in Entity, line: 358
file_get_contents(http://10.0.0.46:2000/front/css/bootstrap.min.css): failed to open stream: HTTP request failed!
Unable to load css file http://10.0.0.46:2000/front/css/bootstrap.min.css
file_get_contents(http://10.0.0.46:2000/front/font-awesome/css/font-awesome.min.css): failed to open stream: HTTP request failed!
Unable to load css file http://10.0.0.46:2000/front/font-awesome/css/font-awesome.min.css
file_get_contents(http://10.0.0.46:2000/front/css/styles.css): failed to open stream: HTTP request failed!
Unable to load css file http://10.0.0.46:2000/front/css/styles.css
file_get_contents(http://10.0.0.46:2000/front/css/custom-style.css): failed to open stream: HTTP request failed!
Unable to load css file http://10.0.0.46:2000/front/css/custom-style.css
file_get_contents(http://10.0.0.46:2000/front/css/custom-mediaqueries.css): failed to open stream: HTTP request failed!
Unable to load css file http://10.0.0.46:2000/front/css/custom-mediaqueries.css
file_get_contents(http://10.0.0.46:2000/front/images/logo.png): failed to open stream: HTTP request failed!
file_get_contents(http://10.0.0.46:2000/front/images/facebook.png): failed to open stream: HTTP request failed!
file_get_contents(http://10.0.0.46:2000/front/images/LinkedIn.png): failed to open stream: HTTP request failed!
file_get_contents(http://10.0.0.46:2000/front/images/Pinterest.png): failed to open stream: HTTP request failed!
file_get_contents(http://10.0.0.46:2000/front/images/Twitter.png): failed to open stream: HTTP request failed!
file_get_contents(http://10.0.0.46:2000/front/images/img-not-found.jpg): failed to open stream: HTTP request failed!

同一页面在浏览器中打开

1 个答案:

答案 0 :(得分：0)

看起来您已将PHP通知/警告/错误设置为向浏览器显示。无论dompdf是否能够解析您的文档，您都不会获得预期的输出，因为：

  1. 如果输出缓冲已禁用，dompdf将拒绝流式传输文档，因为已经发送了标头。发生这种情况是因为Web服务器已经设置了内容类型并将其发送到具有PHP错误的浏览器。如果dompdf无法将内容类型更改为PDF MIME类型，则将拒绝流式传输PDF。
  2. 启用输出缓冲 dompdf会将PDF发送到浏览器，但您的PHP错误将在输出流中出现，并使PDF查看器无法解析PDF。

    3. 因此，您应该禁止向浏览器发送通知。如果不是出于上述原因，那么因为它存在信息披露风险。如果您希望启用它们，则在使用dompdf（例如ini_set('display_errors', false);）时至少应禁用它们。

    话虽如此，您的文档结构存在一些问题：元素上的重复ID属性，不匹配的打开/关闭标记，无法识别的元素。您应该通过validator运行生成的HTML并尽可能多地解决问题。

    最后，您的外部资源（CSS，图像）无法加载。网址错误或PHP设置allow_url_fopen设置为false。

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