PHP 101: Uploading a file

I am doing some freelance work with PHP and I am posting these for my future reference.  This is basic PHP 101 stuff here.

The HTML Form:

<form enctype="multipart/form-data" action="upload.php" method="post">     Please upload your file:     <div>         <input id="fileUpload" name="fileUpload" type="file">         <input id="submit" name="submit" value="Submit" type="submit">     </div> </form>

The key part to the form is enctype="multipart/form-data" which tells the server to expect a file on postback. 

The upload php file to process the file:

<?php     $target_path = "uploads/";
    $target_path = $target_path . basename( $_FILES['fileUpload']['name']);     if (isset($_FILES['fileUpload']))     {         if(move_uploaded_file($_FILES['fileUpload']['tmp_name'], $target_path)) {             echo "The file ".  basename( $_FILES['fileUpload']['name']).             " has been uploaded";               } else {                   echo "There was an error uploading the file, please try again!";               }         } ?>

First we test to see if fileUpload has a value if so it attempts to save the file to the target path.  If all goes well we get a message that the upload passed.  If not a message that there was a problem.