使用Pdfcrowd在PHP中将HTML转换为PDF
[英]Using Pdfcrowd to convert HTML to PDF in PHP
问题描述
I've written the following PHP function to try and generate a PDF: 
我编写了以下PHP函数来尝试生成PDF：
function createPDF($htmlContent) {
$todayDate = date('Y-m-d--H-i-s');
$this->pdfFilename = $this->upload_dir['basedir'] . '/rns/rns--'. $todayDate . '.pdf';
echo "<br><br>Creating: ". $this->pdfFilename ."<br>";
try {
// create an API client instance
$client = new Pdfcrowd($username, $apikey);
$out_file = fopen($this->pdfFilename, "wb");
echo "<br>HTML:<br><br>" . $htmlContent . "<br><br><br>";
$client->convertHtml($htmlContent, $out_file);
fclose($out_file);
}
catch(PdfcrowdException $why) {
echo "Pdfcrowd Error: " . $why . "<br>";
}
}
When run in a browser, this echos $htmlContent correctly (displaying the HTML I want to convert, from <html> to </html> tag, so this variable definitely contains HTML), and then gives the following error: 当在浏览器中运行时，这个$htmlContent正确（显示我要转换的HTML，从<html>到</html>标签，所以这个变量肯定包含HTML），然后给出以下错误：
Pdfcrowd Error: [400] No data to convert. Pdfcrowd错误：[400]无法转换数据。 Missing src field. 缺少src字段。
Obviously something is wrong, but the src field is not missing as far as I can tell as it echos perfectly fine, right before it's passed to the convertHTML() function. 显然有些东西是错的，但是在我传递给convertHTML()函数之前，src字段并没有丢失，因为它可以很好地convertHTML()它。 I'm not sure how to proceed as there appears to be no other info or documentation on this error from pdfcrowd. 我不知道如何继续进行，因为pdfcrowd似乎没有关于此错误的其他信息或文档。
(Pdfcrowd documentation here ) （Pdfcrowd文档在这里 ）
If I copy and paste out the echo'd html from $htmlContent and put that into the first parameter for convertHTML() the code works... so why can I not pass it in as a variable? 如果我复制并粘贴来自$htmlContent html并将其放入convertHTML()的第一个参数中，代码可以工作......那么为什么我不能将其作为变量传递？ Shouldn't it be the same? 不应该是一样的吗？
Can anyone help? 有人可以帮忙吗？
Note: I'm open to other solutions, but I have tried: html2pdf, fpdf, tcpdf, dompdf & mpdf already. 注意：我对其他解决方案持开放态度，但我已经尝试过：html2pdf，fpdf，tcpdf，dompdf和mpdf。 All have different issues rendering the html I need converting (RNS announcements from London Stock Exchange) , which can contain tables and bullet points. 所有这些都有不同的问题呈现我需要转换的html （伦敦证券交易所的RNS公告） ，其中可以包含表格和项目符号。 See my other question . 看到我的另一个问题 。 I got good results putting those RNS urls into the pdfcrowd online converter , so looks like it would work if I get round this error... 我将这些RNS网址放入pdfcrowd在线转换器中取得了很好的效果，所以看起来如果我绕过这个错误就行了...
Example of the XML Feed (see comments), these can contain more than 1 announcement: XML Feed的示例（请参阅注释），这些可以包含多于1个公告：
<Announcement id_pub="12492736" id_rns="4614Y17" cd_ann_type="POS" cd_ann_med="AFX" id_comp="" id_announcement="12492736" cd_tidm="MKS" id_cont="" cd_ann_corr="" fl_regulatory="Y" fl_copyback="" ts_rel="20150908174008" ts_ann_rec="20150908174008" cd_comp_type="" id_prev_rns="" id_par_rns_num=""> <tx_ann_headline>Transaction in Own Shares</tx_ann_headline> <nm_comp>Marks & Spencer Grp</nm_comp> <nm_long_comp>Marks & Spencer Group PLC</nm_long_comp> <nm_cont_long/> <tx_ann/> <ht_ann> <![CDATA[ <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii" /> <title></title> <meta name="generator" content="RNS" /> <style type="text/css"> /**/ H1 { MARGIN: 24pt 0cm 0pt; FONT-FAMILY: "Cambria","serif"; COLOR: #365f91; FONT ]]> <![CDATA[ -SIZE: 14pt } H2 { MARGIN: 10pt 0cm 0pt; FONT-FAMILY: "Cambria","serif"; COLOR: #4f81bd; FONT-SIZE: 13pt } H3 { MARGIN: 10pt 0cm 0pt; FONT-FAMILY: "Cambria","serif"; COLOR: #4f81bd; FONT-SIZE: 12pt } H4 { FONT-STYLE: italic; MARGIN: 10pt 0cm 0pt; FONT-FAMILY: "Cambria","serif ]]> <![CDATA[ "; COLOR: #4f81bd; FONT-SIZE: 12pt } H5 { MARGIN: 10pt 0cm 0pt; FONT-FAMILY: "Cambria","serif"; COLOR: #243f60; FONT-SIZE: 12pt; FONT-WEIGHT: normal } H6 { FONT-STYLE: italic; MARGIN: 10pt 0cm 0pt; FONT-FAMILY: "Cambria","serif"; COLOR: #243f60; FONT-SIZE: 12pt; FONT-WEIGHT: normal } ]]> <![CDATA[ STRONG { FONT-FAMILY: "Times New Roman","serif" } EM { FONT-FAMILY: "Times New Roman","serif" } OL { MARGIN-BOTTOM: 0cm } UL { MARGIN-BOTTOM: 0cm } LINK { COLOR: blue } visited { COLOR: purple } BODY.ca { TEXT-JUSTIFY-TRIM: punctuation } .bz { ]]> <![CDATA[ MARGIN: 72pt 90pt; size: 612.0pt 792.0pt } DIV.bz { } P.cn { MARGIN: 0cm 0cm 0pt; FONT-FAMILY: "Times New Roman","serif"; FONT-SIZE: 12pt; FONT-WEIGHT: bold } SPAN.cl { FONT-FAMILY: "Arial","sans-serif"; FONT-SIZE: 11pt; FONT-WEIGHT: bold } Pa { MARGIN: 0cm 0cm 0pt; FONT-FAMILY: "Times New Roman","serif"; FONT-SIZE: 12pt } LI.a { MARGIN: 0cm 0cm 0pt; FONT-FAMILY: "Times New Roman","serif"; FONT-SIZE: 12pt } DIV.a { MARGIN: 0cm 0cm 0pt; FONT-FAMILY: "Times New Roman","serif"; FONT-SIZE: 12pt } SPAN.cj { FONT-FAMILY: "Arial","sans-serif"; FONT-SIZE: 11pt } P.co { TEXT-ALIGN: justify; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: "Times New Roman","serif"; FONT-SIZE: 12pt } SPAN.ci { FONT-FAMILY: "Arial","sans-serif"; FONT-SIZE: 11pt } SPAN.cp { FONT-FAMILY: "Arial","sans-serif"; COLOR: windowtext; FONT-SIZE: 11pt } P.cq { TEXT-ALIGN: justify; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: "Times New Roman","serif"; FONT-SIZE: 12pt; FONT-WEIGHT: bold } SPAN.cf { FONT-FAMILY: "Arial","sans-serif"; FONT-SIZE: 11pt; FONT-WEIGHT: bold } P.cr { TEXT-ALIGN: center; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: "Times New Roman","serif"; FONT-SIZE: 12pt; FONT-WEIGHT: bold } SPAN.cd { FONT-FAMILY: "Arial","sans-serif"; FONT-SIZE: 11pt; FONT-WEIGHT: bold } SPAN.cb { FONT-WEIGHT: bold } /**/ </style> </head> <body class="ca"><div>RNS Number : 4614Y</div> <div>Marks & Spencer Group PLC</div> <div>08 September 2015</div> <div> </div> <div class="bz"> <p class="cn"><span class="cl">Marks & Spencer Group PLC</span></p> <p class="cn"><span class="cl"> </span></p> <p class="cn"><span class="cl">TRANSACTIONS IN OWN SECURITIES</span></p> <p class="a"><span class="cj"> </span></p> <p class="a"><span class="cj"> </span></p> <p class="a"><span class="cj"> </span></p> <p class="co"><span class="ci">Marks and Spencer Group plc</span><span class="cj"> (</span><span class="cp">"</span><span class="ci">Marks & Spencer</span><span class="cj">") announces today that it has purchased the following number of its ordinary shares of 25 pence each on the London Stock Exchange from </span><span class="ci">Morgan Stanley & Co. International PLC. Such purchase was effected pursuant to irrevocable instructions issued by </span><span class="ci">Marks & Spencer </span><span class="ci">on 7 July 2015, as announced on 7 July 2015</span><span class="ci">:</span></p> <p class="co"><span class="ci"> </span></p> <p class="cq"><span class="cf">Ordinary Shares</span></p> <p class="co"><span class="ci"> </span></p> <p class="co"><span class="ci">Date of purchase:                                           8</span><span class="ci"> September 2015</span></p> <p class="co"><span class="ci"> </span></p> <p class="co"><span class="ci">Number of ordinary shares purchased:          139,705</span></p> <p class="co"><span class="ci"> </span></p> <p class="co"><span class="ci">Price per share:                                              508.89p</span></p> <p class="co"><span class="ci"> </span></p> <p class="co"><span class="ci">Marks & Spencer </span><span class="ci">intends to cancel the purchased shares.</span></p> <p class="co"><span class="ci"> </span></p> <p class="co"><span class="ci">Since </span><span class="ci">8 July 2015</span><span class="cj">, </span><span class="ci">Marks & Spencer </span><span class="ci">has purchased 5,821,474 shares at a cost (including dealing and associated costs) of £30,696,909.</span></p> <p class="co"><span class="ci"> </span></p> <p class="cq"><span class="cf">This announcement does not constitute, or form part of, an offer or any solicitation of an offer for securities in any jurisdiction.</span></p> <p class="cr"><span class="cd"> </span></p> <p class="a"><span class="cj">Contact:<span style="FONT-WEIGHT: bold"><span class="cb"> </span></span></span></p> <p class="a"><span class="cj"> </span></p> <p class="a"><span class="cj">Anthony Clarke </span></p> <p class="a"><span class="cj">Deputy Secretary </span></p> <p class="a"><span class="cj">Marks and Spencer Group plc</span></p> <p class="a"><span class="cj">020 8718 9940 </span></p> <p class="cn"><span class="cl"> </span></p> </div> <div style="text-align:center;"><br/>This information is provided by RNS</div><div style="text-align:center;">The company news service from the London Stock Exchange</div><div> </div> END<div> </div><div> </div>POSLLFVRAFITIIE</body> </html> ]]> </ht_ann> <tx_webcast_url nm_prov=""/> </Announcement>
I'm accessing this like: 我正在访问这个：
foreach($this->xml->Announcement as $announcement) {
$this->createPDF($announcement->ht_ann);
}
2 个解决方案
解决方案1
1 已采纳 2015-10-14 13:57:54
Fixed it by writing the HTML to file before creating the pdf: 通过在创建pdf之前将HTML写入文件来修复它：
So to get pdfcrowd to print a variable $htmlString I can do: 因此要获得pdfcrowd来打印变量$htmlString我可以这样做：
file_put_contents('xmlrequest.html', $htmlString);
$this->createPDF('xmlrequest.html');
I also updated my createPDF() function to use: 我还更新了我的createPDF（）函数使用：
$client->convertFile($htmlContent, $out_file);
Instead of: 代替：
$client->convertHTML($htmlContent, $out_file);
I couldn't find any reason why this works and the way I was trying didn't. 我找不到任何理由为什么这样做，我尝试的方式没有。
解决方案2
0 2018-04-04 09:50:11
I have faced the same issue, I resolved by following below steps: 我遇到了同样的问题，我按照以下步骤解决了这个问题：
$content = "<html><body></body></html"; //What ever html you want to send.
$pdf = $client->convertHtml("{$content}", $fd);
Thanks. 谢谢。
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