//This is the minimal code for an image upload for first time learners
//html portion
<!DOCTYPE html>
<html>
<head>
<title>ImageUpload</title>
</head>
<body>
<form action="upload.php" method="post" enctype="multipart/form-data">
<label>Username</label>
<input type="text" name="username">
<br>
<label>UploadImage</label>
<input type="file" name='myfile'>
<br/>
<input type="submit" value="upload">
</form>
</body>
</html>
//php portion
<?php
$user=$_POST['username'];
$image=$_FILES['myfile'];
echo "Hello $user <br/>";
echo "File Name<b>::</b> ".$image['name'];
move_uploaded_file($image['tmp_name'],"photos/".$image['name']);
//here the "photos" folder is in same folder as the upload.php,
//otherwise complete url has to be mentioned
?>