如何显示从mysqli的数据库的Blob PDF数据到您的HTML PHP表

Question

我这里有一个免费的错误如何通过PHP从数据库中的所有数据显示HTML表格上的代码，但不是唯一的显示字符和数字，我也想显示BLOB数据，比如PDF，图片，TXT等等，你们可以请帮助我怎么了，顺便说一句即时通讯新的PHP和mysqli的，$行[10]，是我所到BLOB数据类型的字段提前家伙，谢谢，我爱你们！

<?php

$servername = "localhost";
$username = "root";
$password = "";
$dbname = "recordmain_db" ;

$conn = mysqli_connect($servername, $username, $password, $dbname); 

// Check connection

if (mysqli_connect_errno())
  {
  echo "Failed to connect to MySQL: " . mysqli_connect_error();
  }

$result = mysqli_query($conn,"SELECT * FROM recordmain_table");


  echo "<center><table id=myTable table border=8 cellspacing=1     
  cellpadding=5>";

  echo "<tr class='header'>

       <th>Doc Type</th>
       <th>Doc Date</th>
       <th>Date Sent</th>
       <th>Medium of Transaction</th>
       <th>Description</th>
       <th>Receiver</th>
       <th>Address</th>
       <th>Contact</th>
       <th>Attachment</th>
       <th>File</th>

       </tr>";
  ?>



  <?php


    while($row = mysqli_fetch_array($result))

   {

 echo 

 "<tr>


      <td>" . $row[1] . "</td>    

      <td> " . $row[2] . "</td>

      <td>" . $row[3] . "</td>

      <td>" . $row[4] . "</td>

      <td>" . $row[5] . "</td>

      <td>" . $row[6] . "</td>

      <td>" . $row[7] . "</td>

      <td>" . $row[8] . "</td>

      <td>" . $row[9] .  "</td>

      <td>" . $row[10] .  "</td>


      </tr>";


      }

 echo "</table></center>";

mysqli_close($conn);
?>

Answer 1

你可以使用base64_encode()显示BLOB数据为PDF格式：

"<object data=\"data:application/pdf;base64," . base64_encode($row[10]) . " type=\"application/pdf\" ></object>"