Question

这是我的实际代码，我开始使用php，我想知道如何在我的网站上显示blob图像。但直到现在我还无法找到如何做到这一点。这是我的PHP代码......

$query=mysqli_query($link, "SELECT image, titulo, tecnica, medidas FROM upload ");

$numrows = mysqli_num_rows($query);

$posts = array();

if ($numrows != 0)
{
 while ($row = mysqli_fetch_assoc($query))
  {
      $post = new stdClass();
      $post->image = '<img src="data:image/jpeg;base64,'.base64_encode($row['image']).'"/>';    
      $post->titulo  = $row['titulo'];
      $post->tecnica  = $row['tecnica'];
      $post->medidas  = $row['medidas'];

      array_push($posts, $post);
   } 
   }

  $jsonData = json_encode($posts);

  header("Content-Type: image/jpeg");

  echo $jsonData;

Answer 1

试试这个：

<?php

    //Connect to the database
  $databasehost = "YOUR DATABASE HOST";
  $databasename = "YOUR DATABASE NAME";
  $databaseusername ="YOUR DATABASE USERNAME";
  $databasepassword = "YOUR DATABASE PASSWORD";

  $con = mysqli_connect($databasehost, $databaseusername, $databasepassword, $databasename) or die(mysqli_error($con));
  mysqli_set_charset ($con, "utf8");

$sql = "SELECT image, titulo, tecnica, medidas FROM upload;";
$res = mysqli_query($con, $sql);
$result = array();

while($row = mysqli_fetch_array($res)) {
array_push($result,
array(
'image'=>base64_encode($row[0]),
'titulo'=>$row[1],
'tecnica'=>$row[2],
'medidas'=>$row[3]
));
}
echo json_encode(array($result));

mysqli_close($con);

这将打印您的数据：

{[{“image”：“基本编码的图像”，“titulo”：“ SOME   DATA “，”tecnica“：”某些数据“，”medidas“：”某些数据“}，

{“image”：“基本编码的图像”，“titulo”：“ SOME   DATA “，”tecnica“：”某些数据“，”medidas“：”某些数据“}，

{“image”：“基本编码的图像”，“titulo”：“ SOME   DATA “，”tecnica“：”某些数据“，”medidas“：”某些数据“}}}

希望它有所帮助！祝好运！快乐的编码！

显示blob图像的问题

1 个答案: