Returning response includes HTML form data

I have a PHP file which does an: echo "someresponse" to return some data. When I run it from a Windows client program, the response I am seeing is not only the "someresponse" above but also has the entire HTML form in the PHP file appended to it. Naturally I do not want the form to be included in the response and do not understand how or why I am getting it back ? Does anybody know why this is happening ? As an example of what is happening my form data in the PHP file looks like: <form ENCTYPE="multipart/form-data" ACTION="" METHOD="POST"> <input NAME="name1" TYPE="file"> <input NAME="name2" TYPE="text"> <input NAME="name3" TYPE="text"> <input VALUE="submit" TYPE="submit"></form> Somewhere in the PHP file I am doing: echo "someresponse" and the data being read back in the response is a string of: "someresponse\n<form ENCTYPE="multipart/form-data" ACTION=""METHOD="POST">\n<input NAME="name1" TYPE="file">\n<input NAME="name2" TYPE="text">\n<input NAME="name3" TYPE="text">\n<input VALUE="submit" TYPE="submit"></form>"