douben1891 2014-09-18 00:14
浏览 21

使用php在数据库中检索存储的图像

I have images stored in my database i want to load them in the browser i have two pages one of them is

show_picture.php and the other one is get_image.php my image contents does not load in the browser and it is like that the image has been moved or something but the images are stored in database so here is my code

 <?php include("includes/student_session.php");?>
<?php confirm_logged_in();?>
<html>
<body>
<?php include("includes/connection.php");?>
<?php 
if (isset($_SESSION['exam_id']) and isset($_SESSION['register_id'])){

$exam_id=mysqli_real_escape_string($cnn,$_SESSION['exam_id']);

$query="select question_id from questions where exam_id={$exam_id} order by page_number asc";
$result=mysqli_query($cnn,$query);
if($result){

    while ($row=mysqli_fetch_array($result)){
    echo "<img src=\"get_image.php?id={$row['question_id']}\"/>";   
    }
}
}
?>
</body>
</html>

and this is my get_image.php

    <?php include("includes/connection.php");?>
<?php 
$question_id=$_REQUEST['id'];
$query="select question from questions where question_id={$question_id} limit 1";
$result=mysqli_query($cnn,$query);
 $row = mysqli_fetch_array($result);
  //mysql_close($cnn);

  header("Content-type: image/jpg");
  echo $row['question'];
?>

I am wondering what i am missing

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