How to send a string to a php file from Android?

Question

I have a php script on a local server that creates and manages an SQL table. I am able to create the table and database through my android app but I am having trouble figuring out how to send data to the php file. I want to send a string so that I can sort and pick the values to return to my app.

How do I change my php and android code so that I can get entries in the table between 2 dates?

Here is some of my Android code:

HttpClient httpclient = new DefaultHttpClient();
HttpPost httppost = new HttpPost("http://10.0.0.3/xampp/information.php");
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
is = entity.getContent();

The beginning of information.php script is setup like this:

<?php
$con = mysql_connect("localhost","root","");
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
mysql_select_db("data",$con);

How do I send a string from Android to the php file?

Jon Egeland · Accepted Answer · 2011-12-11 17:08:29Z

2

You should try using $_POST variables. So your HttpPost object would be initialized like this:

HttpPost httppost = new HttpPost("http://10.0.0.3/xampp/information.php?info="+nameValuePairs);

Then, in your PHP, just check to see if the variable info is set, and then process it if it is.

if(isset(_$POST['info']))
  //process data

This would, of course, requiring some formatting of nameValuePairs so that it is a valid URL, but it forces everything into one variable which you can easily check in your PHP.

answered Dec 11, 2011 at 17:08

Jon Egeland

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1 Comment

Nency Over a year ago

It is easy but it may be create problem when the name valuepairs have ;arge number of data.At that time it gives the error like "Request-URI Too Large".

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