If else doesn't work? - php

Question

I got an article edit function that automatically loads in the article details when selected. I am trying to see if a file was submitted or not during the edit (when resubmitted in edit mode). If the file is not submitted keep the image url in the database unchanged, else change the image url. Somehow the image url breaks when I do not submit a file during edit.
$article_id = $_POST['article-id'];
$article_title = $_POST['article-title'];
$article_description = $_POST['article-description'];
$article_image = $_POST['thumbnail'];
$article_content = $_POST['article-content'];
if(!isset($_FILES['article-thumbnail']) &&
!$_FILES['article-thumbnail']['size'] > 0){
$query = "UPDATE article
SET article_title = '$article_title',
article_description = '$article_description',
article_content = '$article_content', published = 'NO'
WHERE article_id = '$article_id'";
if (!mysql_query($query)) {
// Handle error here
// e.g.
echo "Oh no! The query failed! Error: ".mysql_error();
}
mysql_close();
} else {
$valid_formats = array("jpg", "png", "gif", "zip", "bmp");
$max_file_size = 1024*100;
$path = "test/article_thumbnails/";
$count = 0;
$thumbnailPath = 'http://localhost:8888/test_cms/images/article-thumbnails/' .
$_FILES["article-thumbnail"]["name"];
// Loop $_FILES to exeicute all files
foreach ($_FILES['article-thumbnail']['name'] as $f => $name) {
if ($_FILES['article-thumbnail']['error'][$f] == 4) {
continue; // Skip file if any error found
}
if ($_FILES['article-thumbnail']['error'][$f] == 0) {
if ($_FILES['article-thumbnail']['size'][$f] > $max_file_size) {
$message[] = "$name is too large!.";
continue; // Skip large files
} else if( ! in_array(pathinfo($name, PATHINFO_EXTENSION), $valid_formats) ) {
$message[] = "$name is not a valid format";
continue; // Skip invalid file formats
} else { // No error found! Move uploaded files
if(move_uploaded_file($_FILES["article-thumbnail"]["tmp_name"][$f], $path.$name))
$count++; // Number of successfully uploaded file
}
}
}
$query = "UPDATE article
SET article_title = '$article_title',
article_description = '$article_description',
article_image = '$thumbnailPath',
article_content = '$article_content', published = 'NO'
WHERE article_id = '$article_id'";
if (!mysql_query($query)) {
// Handle error here
// e.g.
echo "Oh no! The query failed! Error: ".mysql_error();
}
mysql_close();
}
As you can see during the else statement the thumbnailPath is set to the url following the name of file:
$_FILES["article-thumbnail"]["name"];
What happens when I do not submit a file during the edit is it writes the url in the database without the file name. Even though it shouldn't get in the else clause?