使用php将android中的base64图像上传到服务器时出错

Question

I am uploading an image from phone gallery to my database . I am posting the base64 string of the image to server .Here is my php code.

    <?php 

 define('DB_HOST', 'localhost');
 define('DB_USER', 'root');
 define('DB_PASS', '');
 define('DB_NAME', 'sample_userdata');

 //connecting to database and getting the connection object
 $conn = mysqli_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);

if($conn)
{
    $image=$_POST["image"];
    $uploadpath="uploads/profilepic.jpg";
    if(isset($image)){
        if(file_put_contents($uploadpath,base64_decode($image))){
        echo json_encode(array('response'=>'Image Uploaded successfully'));}

    }else{
        echo json_encode(array('response'=>'Image upload failed'));
    }
}else{

echo json_encode(array('response'=>'Image upload failed 2'));}
mysqli_close($conn);
?>

The image is getting saved in the uploads folder successfully and android logcat is showing the response

D/Response: {"response":"Image Uploaded successfully"}

But the localhost/profilepic.php which contains the code is showing Notice:

Undefined index: image in C:\\xampp\\htdocs\\profilepic.php on line 13 {"response":"Image upload failed"}

what is the problem , the image is successfully stored in uploads folder , android is giving success message but the localhost page is giving error.

Answer 1

While hitting URL from browser localhost/profilepic.php is GET method. The code is excepting image via POST request.

You can add check to validate the request to avoid this warning message.

Add following code at top of your file to check image is sent or not with request

if( !isset($_POST["image"]) || empty($_POST["image"])
{
    echo json_encode(array('response'=>'Image is required'));
    exit();
}