Reading a book and lost on how to make these scripts DIRECTLY from the book work

[Khoroshko]

<?php

if($_SERVER['REQUEST_METHOD'] == 'POST') {

foreach($_REQUEST as $key => $val) {

echo $key, " : ", $val, "<br />";

}

} else {

?>

<form action="test.php" method="post">

<label for="username">Username:</label>

<input type="text" name="username" />

<label for="email">Email:</label>

<input type="text" name="email" />

<input type="submit" value="Register!" />

</form>

<?php } // End else statement ?>

 

------------

 

 

<?php

if($_SERVER['REQUEST_METHOD'] == 'POST') {

// Checks if a file was uploaded without errors

if(isset($_FILES['photo'])

&& is_uploaded_file($_FILES['photo']['tmp_name'])

&& $_FILES['photo']['error']==UPLOAD_ERR_OK) {

// Outputs the contents of $_FILES

foreach($_FILES['photo'] as $key => $value) {

echo "$key : $value <br />";

}

} else {

echo "No file uploaded!";

}

} else {

// If the form was not submitted, displays the form HTML

?>

<form action="test.php" method="post"

enctype="multipart/form-data">

<label for="photo">User Photo:</label>

<input type="file" name="photo" />

<input type="submit" value="Upload a Photo" />

</form>

<?php } // End else statement ?>

 

--------------

 

 

<?php

// Checks if the form was submitted

if($_SERVER['REQUEST_METHOD'] == 'POST') {

// Checks if a file was uploaded without errors

if(isset($_FILES['photo'])

&& is_uploaded_file($_FILES['photo']['tmp_name'])

&& $_FILES['photo']['error']==UPLOAD_ERR_OK) {

// Checks if the file is a JPG image

if($_FILES['photo']['type']=='image/jpeg') {

$tmp_img = $_FILES['photo']['tmp_name'];

// Creates an image resource

$image = imagecreatefromjpeg($tmp_img);

// Tells the browser what type of file

header('Content-Type: image/jpeg');

// Outputs the file to the browser

imagejpeg($image, '', 90);

// Frees the memory used for the file

imagedestroy($image);

} else {

echo "Uploaded file was not a JPG image.";

}

} else {

echo "No photo uploaded!";

}

} else {

// If the form was not submitted, displays the form HTML

?>

 

<form action="test.php" method="post"

enctype="multipart/form-data">

<label for="photo">User Photo:</label>

<input type="file" name="photo" />

<input type="submit" value="Upload a Photo" />

</form>

<?php } // End else statement ?>

-----------------

Reading: PHP for the Absolute Beginner

Using dreamweaver cs6 and xampp 

The first thing is a submit form to create an account in the book. I copied it exactly from the book at this point and it still does not work.  I get this when I submit the form on localhost "

Object not found!

The requested URL was not found on this server. The link on the referring page seems to be wrong or outdated. Please inform the author of that page about the error.

If you think this is a server error, please contact the webmaster.

Error 404 10.0.0.3
Apache/2.4.4 (Win32) OpenSSL/1.0.1e PHP/5.5.1"
"
The book is no help.
Second thing is the first part about image uploading, third is the second bit about it. I ended up copying exactly from the book to see if my typing (which was the exact same) did not work. I get on chrome - a little image of a paper with a broken edge, I guess broken file or no file? Firefox - "No file uploaded! No photo uploaded!" They say that it should work in the book. Can someone help?
I'm so new to PHP that all my looking on the internet was just looking at things I'm barely familiar with. 

[AbraCadaver]

In each of those files, change the filename in <form action="test.php"... to the actual name of the file it is in.

[Khoroshko]

It is test.php

It's localhost/simple_blog/test.php

Everything is in the folder simple_blog

[Khoroshko]

Also if I put a .png file in the submit photo box, it returns this name : acc323.png 

type : image/png 
tmp_name : C:\xampp\tmp\php7224.tmp 
error : 0 
size : 3675 
Uploaded file was not a JPG image. 

 

like it should. so why not show the image?