What could be causing the issue of not all images being copied when looping through a folder in PHP?

The issue of not all images being copied when looping through a folder in PHP could be due to a variety of reasons such as file permissions, file types, or errors in the loop logic. To solve this issue, you can check for errors during the copying process, ensure proper file permissions, and verify that the loop is correctly iterating through all files in the folder.

$sourceFolder = 'path/to/source/folder/';
$destinationFolder = 'path/to/destination/folder/';

$files = glob($sourceFolder . '*.{jpg,jpeg,png,gif}', GLOB_BRACE);

foreach ($files as $file) {
    $filename = basename($file);
    if (copy($file, $destinationFolder . $filename)) {
        echo "File $filename copied successfully.<br>";
    } else {
        echo "Error copying file $filename.<br>";
    }
}