Android Post Base64 String to PHP

Android post Base64 String to PHP

This is the code for image:

ByteArrayOutputStream bao = new ByteArrayOutputStream();                

bitmap.compress(Bitmap.CompressFormat.JPEG, 90, bao);
byte [] ba = bao.toByteArray();
String ba1=Base64.encodeBytes(ba);
ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
nameValuePairs.add(new BasicNameValuePair("image",ba1));

This is the HTTP code for sending the image to the server:

HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://servername.com/uploadimage.php");
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));        
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
is = entity.getContent();

If you find any more difficulties ask me or a check:

• this similar tutorial for image uploading
• Base64 example

In PHP header file changes :

header('Content-Type: image/jpg; charset=utf-8');
$base=$_REQUEST['image'];

Uploading A Base64 encode Image to php server

Look into the differences. Sometimes you need to replace spaces with plusses.

$binary = base64_decode(str_replace(" ", "+", $_POST['image']));

Android Image Upload to php server base64 not working

I solved the issue, it was a peculiar one to be honest. The java code is fine here as expected, the problem was that i didn't knew this weird php behavior,

i was giving the upload path with absolute path, like this

$upload_path = "android_pool/whatsapp/images/$name.jpg"

but php flags this as wrong for some reason, php wants the relative images directory path respect to where the php file i am calling is.
i know makes no sense, cause absolute path is always better and why php doesn't work with that i have no clue.

so what works is

$upload_path = "images/$name.jpg"

just by changing this everything works.
I solved this by fiddling around and changing things just for the sake of changing.
So i felt obligated to answer this unintuitive problem for some poor soul who encounters it.

How to send base64 image to server - PHP

There are several points you should check:

1.Make sure the server has received the base64 string

$encoded_string = $_POST['encoded_string'];

Check the length of $encoded_string, it should have the same length as the android client says.

2. Make sure the decoding works
   
   

   $decoded_string = base64_decode($encoded_string);

Check the length of $decoded_string, it should NOT be zero or something odd.

3. Make sure the file written works
   
   

   $is_written = fwrite($file, $decoded_string);

$is_written should be the length of the data that has been written to the file, if it is a false, then something is wrong.

Can't send Base64 String from Android to php

Using this implementation of "encodeToBase64" solved it. As greenapps suggested, we shouldn't use the bitmap to get the bytes of an image file.

private String encodeToBase64(final String url){
        try {
            File file = new File(url);
            byte[] bFile = new byte[(int) file.length()];
            FileInputStream inputStream = new FileInputStream(url);
            inputStream.read(bFile);
            inputStream.close();
            return Base64.encodeToString(bFile, Base64.NO_WRAP);
        } catch (IOException e) {
            Log.e(TAG, Log.getStackTraceString(e));
        }
        return null;
    }

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