php - Fatal error: Some data has already been output, can't send PDF file

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php - Fatal error: Some data has already been output, can't send PDF file

posted Jan 31, 2022 in Technique[技术] by 深蓝 (71.8m points)

php - Fatal error: Some data has already been output, can't send PDF file

so this is my code

 <body>
  <section id="container" >
     <?php require 'inc/header.php';?>

    <section id="main-content">
      <section class="wrapper">
            <div class="row">
              <div class="row mt">
                <div class="col-md-12">
                  <div class="content-panel">
        <!-- 1ere ETAPE -->                 
                  <h1 style="text-align:center ;"> Rénitialisation  </h1>
                    <div class="etape1">
<?php 
require('inc/reni/fpdf.php'); 
$pdf=new FPDF();
$pdf->AddPage();
$pdf->SetFont('Arial','B',10);
$pdf->Ln();
$pdf->Ln();
$pdf->SetFont('times','B',10);
$pdf->Cell(25,7,"nom");
$pdf->Cell(30,7,"prenom");
$pdf->Ln();
$pdf->Cell(450,7,"----------------------------------------------------------------------------------------------------------------------------------------------------------------------");
$pdf->Ln();

        include ('inc/reni/db.php');
       $sql="SELECT * FROM table1";
        $result = $bdd->query($sql);

        while($rows=$result->fetch())
        {
            $nom = $rows[0];
            $prenom = $rows[1];
            $pdf->Cell(25,7,$nom);
            $pdf->Cell(30,7,$prenom);

        
            $pdf->Ln(); 
        }

$pdf->Output();?>
                    </div>

              
                  </div>
                </div>
              </div><!-- /col-md-12 -->
            </div><!-- /row -->
      </section><! --/wrapper -->
    </section><!-- /MAIN CONTENT -->
  </section>
<?php require 'inc/script.php';?>

  </body>

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1 Reply

深蓝 · Answer 1 · 2022-01-31T07:23:41+0000

What you try to use the result it's an octet stream which sends the PDF file to your Browser to download the file. In this case you can't have an output before. Create a single file and output that PDF file without writing anything before. Then you can download the file.

That is what the error message tells you. Don't output anything before the output of the PDF file.

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