PHP递归遍历文件夹详解教程

$dir = '/path/to/your/folder';
$iterator = new RecursiveIteratorIterator(
    new RecursiveDirectoryIterator($dir, RecursiveDirectoryIterator::SKIP_DOTS),
    RecursiveIteratorIterator::SELF_FIRST
);

foreach ($iterator as $fileinfo) {
    $depth = $iterator->getDepth();
    $indent = str_repeat("  ", $depth);
    
    if ($fileinfo->isDir()) {
        echo "$indent[DIR] " . $fileinfo->getFilename() . "\n";
    } else {
        echo "$indent" . $fileinfo->getFilename() . " (size: " . $fileinfo->getSize() . " bytes)\n";
    }
}

function scanDirRecursively($path) {
    if (!is_dir($path)) {
        return;
    }

    $items = scandir($path);
    foreach ($items as $item) {
        if ($item === '.' || $item === '..') {
            continue;
        }

        $fullPath = $path . DIRECTORY_SEPARATOR . $item;

        if (is_dir($fullPath)) {
            echo "[DIR] $fullPath\n";
            scanDirRecursively($fullPath); // 递归进入子目录
        } else {
            echo "FILE: $fullPath\n";
        }
    }
}

// 调用示例
scanDirRecursively('/path/to/your/folder');

$phpFiles = [];
foreach ($iterator as $fileinfo) {
    if (!$fileinfo->isFile()) continue;

    $ext = pathinfo($fileinfo->getFilename(), PATHINFO_EXTENSION);
    if ($ext === 'php') {
        $phpFiles[] = $fileinfo->getPathname();
    }
}

print_r($phpFiles);