How can the PHP function array_filter() be used to solve issues related to uploading multiple images?

When uploading multiple images, it is common to encounter issues with filtering out unwanted elements from the array of uploaded files. The PHP function array_filter() can be used to easily remove any empty or unwanted elements from the array of uploaded files before processing them further. This can help ensure that only valid images are processed during the upload process.

// Example code snippet using array_filter() to filter out empty elements from the array of uploaded files
$uploaded_files = $_FILES['images']; // Assuming 'images' is the name of the file input field

// Filtering out empty elements from the array of uploaded files
$filtered_files = array_filter($uploaded_files['name']);

// Processing the filtered files further
foreach ($filtered_files as $file_name) {
    // Process each valid file here
}