Description:
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I am using the Java class HttpURLConnection to post variables to a php script and I'm encoding them using URLEncoder (UTF-8). The POST variables do not seem to be decoded correctly when a double or single quote is in the stream. A backslash character is prepended to it making it impossible for me to send for example: 

select * from MyTable where MyColumn="brill"

I end up with 
select * from MyTable where MyColumn=\"brill\"

I have checked the string going to the server and it lookes like this for the example above:

select+*+from+MyTable+where+MyColumn%3D%22brill%22

which of course is correct for UTF-8.

I have not tested this on Linux.

Reproduce code:
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HttpURLConnection l_connection = (HttpURLConnection)m_url.openConnection();
		l_connection.setDoOutput( true );

		String l_postVars = URLEncoder.encode("MySQL", "UTF-8") + "=" + URLEncoder.encode("select * from MyTable where MyColumn=\"brill\"", "UTF-8");

		OutputStreamWriter l_os = new OutputStreamWriter( l_connection.getOutputStream() );
		l_os.write( l_postVars, 0, l_postVars.length() );
		l_os.flush();

PHP code:
echo $_POST['MySQL'];


Expected result:
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select * from MyTable where MyColumn="brill"

Actual result:
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select * from MyTable where MyColumn=\"brill\"