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    <p>Here is a piece of code I wrote for registering a new username using JSON:</p> <pre><code> public static boolean register(Context myContext, String name, String pwd) { byte[] data; HttpPost httppost; StringBuffer buffer; HttpResponse response; HttpClient httpclient; InputStream inputStream; List&lt;NameValuePair&gt; nameValuePairs; try { httpclient = new DefaultHttpClient(); httppost = new HttpPost( "http://X.X.X.X/register.php"); // Add your data nameValuePairs = new ArrayList&lt;NameValuePair&gt;(2); nameValuePairs.add(new BasicNameValuePair("User", name.trim())); nameValuePairs.add(new BasicNameValuePair("Password", pwd.trim())); httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); // Execute HTTP Post Request response = httpclient.execute(httppost); inputStream = response.getEntity().getContent(); data = new byte[256]; buffer = new StringBuffer(); int len = 0; while (-1 != (len = inputStream.read(data))) { buffer.append(new String(data, 0, len)); } inputStream.close(); } catch (Exception e) { Toast.makeText(myContext, "error" + e.toString(), Toast.LENGTH_LONG) .show(); return false; } if (buffer.charAt(0) == 'Y') { return true; } else { return false; } } </code></pre> <p>If you notice:</p> <pre><code> nameValuePairs = new ArrayList&lt;NameValuePair&gt;(2); nameValuePairs.add(new BasicNameValuePair("User", name.trim())); nameValuePairs.add(new BasicNameValuePair("Password", pwd.trim())); httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); </code></pre> <p>in that piece you can send parameters.</p> <p>The method simply sends User and Password to the register.php. If the User is already taken, 'N' is returned; otherwise creates the User and returns 'Y'.</p> <p>On the server side, you treat them as POST information, so:</p> <pre><code> $user = $_POST['User']; </code></pre> <p>It should do for your case :)</p> <p>Cheers!</p>
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    1. COlet me know if the php is also needed ;)
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    2. COThank you so much! Just one more question, can I call for example php function "function getSettings($value)" which will send something back to Android? Because I want few functions in the same php file, and to call them separately when I need. Is there command for that? Thank you one more time.
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    3. COIf you see there, it already returns something (either 'Y' or 'N'). So, if it is something simple like a char, a string etc.. you can just read the buffer and 'build' the response and use it accordingly. Otherwise you need to do something extra: Check this question of mine, it will be helpful ;) http://stackoverflow.com/questions/10186266/android-json-mysql-query-gives-networkonmainthreadexception
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