How to Iterate Through Files Within Subdirectories in PHP?

PHP Subdirectory File Iteration

This code snippet demonstrates how to iterate through files within subdirectories in PHP:

<code class="php">$mainDirectory = "MainDirectory";
$iterator = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($mainDirectory));

foreach ($iterator as $file) {
    // Perform actions on each file here.
    echo $file->getPathname() . " - " . $file->getSize() . " bytes<br>";
}</code>

The above code uses the RecursiveDirectoryIterator and RecursiveIteratorIterator classes to recursively traverse the specified main directory and its subdirectories. For each file encountered within these directories, you can perform necessary actions, such as reading the file contents, modifying it, or performing other operations.

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