我需要将pdf的内容存储到数据库并检索它。 我正在使用fpdf来构建我的pdf内容。 当我使用$ pdf-＆gt;输出（“”，“我”）;或$ pdf-＆gt;输出（“”，“D”）; ，我可以看到内容并保存到我的数据库中。 我的代码是： class FPDF扩展了tFPDF {
function Header()
{
$hoje = date("d/m/y");
$this->Cell(10,10,"$hoje",0,'L');
$this->Image('./images/logo.png',170,10,30);
$this->SetFont('Arial','',9);
$this->Cell(70);
$this->Cell(30,10,'Nome da empresa',0,'C');
$this->Ln(15);
}
function NomeComprador($nomeUser,$apelido,$nomeCategoria)
{
$this->SetFont('DejaVu','',10);
$this->Cell(0,4,"Nome do Utilizador: $nomeUser" . " $apelido",0,1,'C');
$this->Cell(-1);
$this->Cell(0,5,"Categoria: $nomeCategoria",0,1,'C');
$this->Ln(4);
}
function informacaoImagem($nomeImagem,$titulo,$descricao,$poupa,$desconto,$quantidade){
$this->nomeImagem = $nomeImagem;
$total = $quantidade * $poupa;
$this->Image('./images/paginaPrincipal/' . $this->nomeImagem,30,50,50);
$this->Cell(125,30,"Nome do Voucher: $titulo",0,1,'R');
$this->Cell(120.5,-15,"Descrição: $descricao",0,1,'R');
$this->SetFont('DejaVu','B',22);
$this->Cell(180,40,"$total" . " €",0,1,'C');
$this->SetFont('DejaVu','',11);
$this->Cell(250,-45,"Desconto: $desconto" . '%',0,1,'C');
}
function informacaoOferta($menus,$descricoes){
foreach ($menus as $key => $value) {
foreach ($descricoes as $key2 => $value2){
if($key == 0 && $key2 == 0){
$valor = strip_tags($value2);
$this->SetFont('DejaVu', 'B', 14);
$this->Cell(125,100,"$value:",0,1,'L');
$this->SetFont('DejaVu','','11');
$this->Write(5,$this->Cell(125,-75,"$valor"));
$this->Ln(10);
}elseif ($key == 1 && $key2 == 1){
$valorFinal = strip_tags($value2);
$this->SetFont('DejaVu','B',13);
$this->Cell(125,-30,"$value:",0,1,'L');
$this->SetFont('DejaVu','','11');
$this->Write(5,"$valorFinal");
$this->Ln(50);
}elseif($key == 2 && $key2 == 2){
$valor3 = strip_tags($value2);
$this->SetFont('DejaVu','B',13);
$this->Cell(125,-50,"$value:",0,1,'L');
$this->SetFont('DejaVu','','11');
$this->Write(7,"$valor3");
$this->Ln(30);
}elseif($key == 3 && $key2 == 3){
$valor4 = strip_tags($value2);
$this->SetFont('DejaVu','B',13);
$this->Cell(125,-10,"$value:",0,1,'L');
$this->SetFont('DejaVu','','11');
$this->Write(3,"$valor4");
$this->Ln(40);
}elseif($key == 4 && $key2 == 4){
$valor5 = strip_tags($value2);
$this->SetFont('DejaVu','B',13);
$this->Cell(125,20,"$value:",0,1,'L');
$this->SetFont('DejaVu','','11');
$this->Write(0,"$valor5");
$this->Ln(20);
}
}
}
}
function EAN13($x, $y, $barcode, $h=16, $w=.35)
{
$this->Barcode($x,$y,$barcode,$h,$w,13);
}
function UPC_A($x, $y, $barcode, $h=16, $w=.35)
{
$this->Barcode($x,$y,$barcode,$h,$w,12);
}
function GetCheckDigit($barcode)
{
$sum=0;
for($i=1;$i<=11;$i+=2)
$sum+=3*$barcode[$i];
for($i=0;$i<=10;$i+=2)
$sum+=$barcode[$i];
$r=$sum%10;
if($r>0)
$r=10-$r;
return $r;
}
function TestCheckDigit($barcode)
{
$sum=0;
for($i=1;$i<=11;$i+=2)
$sum+=3*$barcode[$i];
for($i=0;$i<=10;$i+=2)
$sum+=$barcode[$i];
return ($sum+$barcode[12])%10==0;
}
function Barcode($x, $y, $barcode, $h, $w, $len)
{
$barcode=str_pad($barcode,$len-1,'0',STR_PAD_LEFT);
if($len==12)
$barcode='0'.$barcode;
if(strlen($barcode)==12)
$barcode.=$this->GetCheckDigit($barcode);
elseif(!$this->TestCheckDigit($barcode))
$this->Error('Incorrect check digit');
$codes=array(
'A'=>array(
'0'=>'0001101','1'=>'0011001','2'=>'0010011','3'=>'0111101','4'=>'0100011',
'5'=>'0110001','6'=>'0101111','7'=>'0111011','8'=>'0110111','9'=>'0001011'),
'B'=>array(
'0'=>'0100111','1'=>'0110011','2'=>'0011011','3'=>'0100001','4'=>'0011101',
'5'=>'0111001','6'=>'0000101','7'=>'0010001','8'=>'0001001','9'=>'0010111'),
'C'=>array(
'0'=>'1110010','1'=>'1100110','2'=>'1101100','3'=>'1000010','4'=>'1011100',
'5'=>'1001110','6'=>'1010000','7'=>'1000100','8'=>'1001000','9'=>'1110100')
);
$parities=array(
'0'=>array('A','A','A','A','A','A'),
'1'=>array('A','A','B','A','B','B'),
'2'=>array('A','A','B','B','A','B'),
'3'=>array('A','A','B','B','B','A'),
'4'=>array('A','B','A','A','B','B'),
'5'=>array('A','B','B','A','A','B'),
'6'=>array('A','B','B','B','A','A'),
'7'=>array('A','B','A','B','A','B'),
'8'=>array('A','B','A','B','B','A'),
'9'=>array('A','B','B','A','B','A')
);
$code='101';
$p=$parities[$barcode[0]];
for($i=1;$i<=6;$i++)
$code.=$codes[$p[$i-1]][$barcode[$i]];
$code.='01010';
for($i=7;$i<=12;$i++)
$code.=$codes['C'][$barcode[$i]];
$code.='101';
for($i=0;$i<strlen($code);$i++)
{
if($code[$i]=='1')
$this->Rect($x+$i*$w,$y,$w,$h,'F');
}
$this->SetFont('Arial','',12);
$this->Text($x,$y+$h+11/$this->k,substr($barcode,-$len));
}
function PrintComprador($nomeUser,$apelido,$nomeCategoria,$titulo,$nomeImagem,$descricao,$poupa,$desconto,$quantidade)
{
$this->AddPage();
$this->NomeComprador($nomeUser,$apelido,$nomeCategoria);
$this->informacaoImagem($nomeImagem,$titulo,$descricao,$poupa,$desconto,$quantidade);
}
function PrintOferta($menus,$descricoes)
{
$this->informacaoOferta($menus,$descricoes);
}
function Footer()
{
$this->SetY(-15);
$this->SetFont('DejaVu', '', 8);
$this->Cell(0,10,'Página '.$this->PageNo().'/{nb}',0,0,'C');
}
}
$pdf = new FPDF();
$pdf->AddFont('DejaVu','','DejaVuSansCondensed.ttf',true);
$pdf->AddFont('DejaVu', 'B', 'DejaVuSansCondensed-Bold.ttf', true);
$pdf->SetFont('DejaVu', '', 14);
$pdf->AliasNbPages();
for($i = 0; $i < $quantidade; $i++){
$pdf->PrintComprador($nomeUser,$apelido,$nomeCategoria,$titulo,$nomeImagem,$descricao,$poupa,$desconto,$quantidade);
$random = substr(number_format(time() * rand(),0,'',''),0,12);
$pdf->EAN13(40,20,$random);
$pdf->PrintOferta($menus,$descricoes);
$pdf->Write(40,"Para descobrir a localização, descubra ");
$pdf->SetFont('','U');
$link = $pdf->AddLink();
$pdf->Write(40,'aqui',$hiperlink);
$pdf->SetFont('DejaVu', 'B', 12);
$pdf->Ln(2);
$pdf->Write(70,"Procedimento:");
$pdf->Ln(2);
$pdf->SetFont('DejaVu', '', 11);
$pdf->Write(90,"1- Imprimir o cupão.");
$pdf->Ln(2);
$pdf->SetFont('DejaVu', '', 11);
$pdf->Write(110,"2- Leia atentamente as condições e os detalhes da compra.");
$pdf->Ln(2);
$pdf->SetFont('DejaVu', '', 11);
$pdf->Write(130,"3- Apresentação do cupão no estabelecimento previsto.");
}
$file = $pdf->Output("","S");
$query = "INSERT INTO historico (nomeUser,email,nomeVoucher,categoria,quantidade,preco,confirmacao,filePDF,idUser) VALUES (?,?,?,?,?,?,?,?,?)";
$stmt = $mybd->prepare($query) or die("Erro na base de dados");
$ficheiro = addslashes($file);
$stmt->bind_param("ssssiissi",$nomeUser,$email,$titulo,$nomeCategoria,$quantidade,$total,$confirmacao,$ficheiro,$idUser);
$stmt->execute();
$stmt->close();
当我想要检索它时，我无法显示我的内容，而adobe告诉我“无法加载pdf” 我正在使用以下代码从数据库中读取内容：
$query = "select nomeUser,email,nomeVoucher,categoria,preco,confirmacao,filePDF
from historico
Where confirmacao = 'a confirmar'
LIMIT $start, $per_page";
$stmt = $mybd->prepare($query);
$stmt->execute();
$stmt->bind_result($nomeUser,$email,$nomeVoucher, $categoria, $preco, $confirmacao,$filePDF);
while ($stmt->fetch()) {
if($confirmacao == "a confirmar"){
echo("<tbody >");
echo("<tr>
<td>$nomeUser</td>");
echo "<td>$email</td>";
echo("<td>$nomeVoucher</td>");
echo("<td>$categoria</td>");
echo("<td>$preco €</td>");
echo("<td>$confirmacao</td>");
header('Content-Type: application/pdf');
header('Accept-Ranges: bytes');
header('Content-Transfer-Encoding: binary');
header("Content-Disposition: inline; filename=" . $nomeVoucher .'.pdf');
echo $row['data'];
die();
echo"<input type='hidden' name='mail' value='0' />";
echo "<th><input type='checkbox' name='mail' value='1'></th>";
echo("</tr>");
echo("</tbody>");
}
}
我找不到任何问题的答案。 任何人都可以帮助我。 感谢
答案 0 :(得分：0)
看起来您正在尝试混合HTML和二进制输出。您需要做的是在HTML表格中设置一个链接，该链接指向一个单独的PHP脚本。在该单独的脚本中，您可以输出标题和仅二进制数据。
修改：提供示例
在您的html表格中，您将删除所有header()和die()来电，并且您需要指向该文档的链接：
echo("<td><a href='getFile.php?nomeVoucher=".$nomeVoucher."'>Download</a>");
然后在同一目录中创建一个名为getFile.php的新脚本。它应该像这样看 somthing ：
<?php
if(isset($_GET['nomeVoucher'])) {
$nomeVoucher = $_GET['nomeVoucher'];
} else {
die("nomeVoucher missing.");
}
$query = "select filePDF
from historico
Where nomeVoucher = ?
LIMIT $start, $per_page";
$stmt = $mybd->prepare($query);
$stmt->bind_param('s', $_GET['nomeVoucher']);
$stmt->execute();
$stmt->bind_result($filePDF);
if($stmt->fetch()) {
header('Content-Type: application/pdf');
header('Accept-Ranges: bytes');
header('Content-Transfer-Encoding: binary');
header('Content-Length: '.strlen($filePDF));
header("Content-Disposition: inline; filename=" . $nomeVoucher .'.pdf');
echo $filePDF;
die();
} else {
die("something broke");
}
?>
请记住，这纯粹是概念性的。我没有广泛使用mysqli，特别是bind_result()函数，所以这段代码假设您的原始示例至少正确地显示并显示一些数据。它还假设$filePDF包含实际的二进制PDF数据。