Question

So I was implementing a sponsorship admin website then I encountered some trouble around.I am aware that storing image into database could be such pain in the neck but this is required(having a filesystem to store images in the campus server is prohibited).

I create 3 tables:

• a info table storing text information,
• an image table storing images in BLOB fashion and
• a id_table table as a reference table keeping records of image id and info id.
  

$result=mysql_query("SELECT info_id,info_name,info_year,info_level,info_email,info_describe FROM info");
while($row = mysql_fetch_array($result))
{
    echo "<td>" . $row['info_name'] . "</td>";
    echo "<td>" . $row['info_year'] . "</td>";
    echo "<td>" . $row['info_level' ] . "</td>";
    echo "<td>" . $row['info_email'] . "</td>";
    echo "<td>" . $row['info_describe'] . "</td>";
    $result_image_id = mysql_query("SELECT id_image FROM id_table WHERE id_info = '{$row['info_id']}'");
    $row_image = mysql_fetch_array($result_image_id);
    $result_image = mysql_query("SELECT image_stuff FROM image WHERE image_id = '{$row_image['id_image']}'");
    $row_2 = mysql_fetch_array($result_image);
    $content=$row_2['image_stuff'];
    echo "<td>" ;
    header('Content-type: image/jpeg');
    echo $content;
    echo "</td>";
    echo "</tr>";
}

Then in the browser, I was redirected to a blank page. If I delete that header function, I do have a table in the page but there is nothing in the image column.

Any suggestions ?

Additionally, I tried using an <img> tag in my while loop:

echo "<img src='$content' />";

The good news is, it kind of worked out but the image file did not display practically.

I had a table in my page with image column filled with image files, but it looked just like the server did not find the image though.

I guess there does not exist any problem with my insert script because when I was applying that img tag,the “cannot display” logo only appeared in the cell whose row is the one I did upload image file into database…

Answer 1

You cant use headers like that…

try something like that

$result=mysql_query("SELECT info_id,info_name,info_year,info_level,info_email,info_describe FROM info");
while($row = mysql_fetch_array($result))
{
echo "<td>" . $row['info_name'] . "</td>";
echo "<td>" . $row['info_year'] . "</td>";
echo "<td>" . $row['info_level' ] . "</td>";
echo "<td>" . $row['info_email'] . "</td>";
echo "<td>" . $row['info_describe'] . "</td>";
$result_image_id = mysql_query("SELECT id_image FROM id_table WHERE id_info = '{$row['info_id']}'");
$row_image = mysql_fetch_array($result_image_id);
$result_image = mysql_query("SELECT image_stuff FROM image WHERE image_id = '{$row_image['id_image']}'");
$row_2 = mysql_fetch_array($result_image);
$content=$row_2['image_stuff'];
echo "<td>" ;
echo '<img src="data:image/png;base64,' . base64_encode($content) . '" />';
echo "</td>";
echo "</tr>";
}

Change the png for whatever type of image you stored. I havent looked at the code much but this should work.