How can PHP's DirectoryIterator and glob() functions be utilized to rename multiple files at once?

To rename multiple files at once using PHP's DirectoryIterator and glob() functions, you can iterate over the files in a directory using DirectoryIterator, check if they match a specific pattern using glob(), and then rename them accordingly. 

$directory = 'path/to/directory/';
$pattern = '*.txt';
$replacement = '_new';

$files = new DirectoryIterator($directory);

foreach ($files as $file) {
    if ($file->isFile() && fnmatch($pattern, $file->getFilename())) {
        $newName = str_replace($pattern, $replacement, $file->getFilename());
        rename($file->getPathname(), $directory . $newName);
    }
}

Keywords

PHP DirectoryIterator glob() rename multiple files

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