PHP MySQL：将PDF保存到数据库

Question

我正在使用TCPDF生成PDF，我想将生成的PDF作为blob保存在MySQL数据库中。我应该将哪些数据保存到数据库？ 代码的PDF页面

<?php 
require_once('../config/lang/eng.php'); 
require_once('../tcpdf.php'); 

// create new PDF document 
$pdf = new TCPDF(PDF_PAGE_ORIENTATION, PDF_UNIT, PDF_PAGE_FORMAT, true, 'UTF-8', false); 

// set document information 
$pdf->SetCreator(PDF_CREATOR); 
$pdf->SetAuthor('Nicola Asuni'); 
$pdf->SetTitle('TCPDF Example 001'); 
$pdf->SetSubject('TCPDF Tutorial'); 
$pdf->SetKeywords('TCPDF, PDF, example, test, guide'); 

// set default header data 
$pdf->SetHeaderData(PDF_HEADER_LOGO, PDF_HEADER_LOGO_WIDTH, PDF_HEADER_TITLE.' 001', PDF_HEADER_STRING); 

// set header and footer fonts 
$pdf->setHeaderFont(Array(PDF_FONT_NAME_MAIN, '', PDF_FONT_SIZE_MAIN)); 
$pdf->setFooterFont(Array(PDF_FONT_NAME_DATA, '', PDF_FONT_SIZE_DATA)); 

// set default monospaced font 
$pdf->SetDefaultMonospacedFont(PDF_FONT_MONOSPACED); 

//set margins 
$pdf->SetMargins(PDF_MARGIN_LEFT, PDF_MARGIN_TOP, PDF_MARGIN_RIGHT); 
$pdf->SetHeaderMargin(PDF_MARGIN_HEADER); 
$pdf->SetFooterMargin(PDF_MARGIN_FOOTER); 

//set auto page breaks 
$pdf->SetAutoPageBreak(TRUE, PDF_MARGIN_BOTTOM); 

//set image scale factor 
$pdf->setImageScale(PDF_IMAGE_SCALE_RATIO); 

//set some language-dependent strings 
$pdf->setLanguageArray($l); 

// --------------------------------------------------------- 

// set default font subsetting mode 
$pdf->setFontSubsetting(true); 

// Set font 
// dejavusans is a UTF-8 Unicode font, if you only need to 
// print standard ASCII chars, you can use core fonts like 
// helvetica or times to reduce file size. 
$pdf->SetFont('dejavusans', '', 14, '', true); 

// Add a page 
// This method has several options, check the source code documentation for more information. 
$pdf->AddPage(); 

// Set some content to print 
$html = <<<EOD 
<h1>Welcome to <a href="http://www.tcpdf.org" style="text-decoration:none;color:black;"><span style="background-color:#CC0000;"> TC<span style="color:white;">PDF</span> </span></a>!</h1> 
<i>This is the first example of TCPDF library.</i> 
<p>This text is printed using the <i>writeHTMLCell()</i> method but you can also use: <i>Multicell(), writeHTML(), Write(), Cell() and Text()</i>.</p> 
<p>Please check the source code documentation and other examples for further information.</p> 
<p style="color:#CC0000;">TO IMPROVE AND EXPAND TCPDF I NEED YOUR SUPPORT, PLEASE <a href="http://sourceforge.net/donate/index.php?group_id=128076">MAKE A DONATION!</a></p> 
EOD; 

// Print text using writeHTMLCell() 
$pdf->writeHTMLCell($w=0, $h=0, $x='', $y='', $html, $border=0, $ln=1, $fill=0, $reseth=true, $align='', $autopadding=true); 

// --------------------------------------------------------- 

// Close and output PDF document 
// This method has several options, check the source code documentation for more information. 
$pdf->Output('example_001.pdf', 'I'); 

//============================================================+ 
// END OF FILE 
//============================================================+ 
?> 

代码输出的PDF文件浏览器。我如何将pdf数据保存到数据库或以其他方式保存到文件系统？对于文本数据，我已经使用file_put_contents来创建html/txt文件。

解决了感谢Piskvor。 解决方案代码

$content=$pdf->Output('', 'S'); 
header("Content-type:application/pdf"); 
header("Content-Disposition:attachment;filename='pdf.pdf'"); 
echo $content; 

可以节省$内容在您的分贝斑点和检索它来生成PDF文件。如果您希望在浏览器中打开pdf，请删除以下行。

header（“Content-Disposition：attachment; filename ='pdf.pdf'”）;

Answer 1

答案就在那里，在你的代码：

// Close and output PDF document 
// **This method has several options**, check the source code documentation for more information. 
$pdf->Output('example_001.pdf', 'I'); 

From the documentation：

参数：（...） 字符串$ dest目标在哪里发送 文件。它可以采用以下值之一的 ：（...）S：将文档作为 字符串返回。名称被忽略。

于是，从而改变你的代码：

$pdffilecontent = $pdf->Output('', 'S'); 

而该字符串保存到数据库

Answer 2

输出（$名= 'example_001.pdf'，$ DEST = 'I'）

在$ DEST字符串（目的地，发送文件）

的值可以是：

I: send the file inline to the browser (default). 
D: send to the browser and force a file download with the name given by name. 
F: save to a local server file with the name given by name. 
S: return the document as a string (name is ignored). 
FI: equivalent to F + I option 
FD: equivalent to F + D option 
E: return the document as base64 mime multi-part email attachment (RFC 2045) 

希望有所帮助！