PHP batch replaces file names in specified folders

Here is a PHP function that allows for batch renaming of files within a specified folder:

function batchRenameFiles($dir, $search, $replace) {
  $files = scandir($dir); // 获取目录下所有文件

  foreach ($files as $file) {
    $filePath = $dir . DIRECTORY_SEPARATOR . $file;

    // 排除 "." 和 ".." 以及目录
    if ($file == '.' || $file == '..' || is_dir($filePath)) {
      continue;
    }

    // 检查文件名是否包含搜索字符串
    if (strpos($file, $search) !== false) {
      $newName = str_replace($search, $replace, $file); // 构造新文件名

      // 检查新文件名是否已存在
      if (file_exists($dir . DIRECTORY_SEPARATOR . $newName)) {
        echo "文件 $newName 已存在，跳过文件 $file。\n";
      } else {
        // 进行文件重命名
        if (rename($filePath, $dir . DIRECTORY_SEPARATOR . $newName)) {
          echo "重命名文件 $file 为 $newName 成功。\n";
        } else {
          echo "重命名文件 $file 为 $newName 失败。\n";
        }
      }
    }
  }
}

This function accepts three parameters:

• $dirSpecify the directory path for batch renaming of files.
• $searchThe string to search for and replace.
• $replaceThe string to be replaced.

The function is used. scandir The function retrieves all files within a specified directory, then checks each file; if the file name contains the search string, it constructs a new file name and performs a renaming operation. During this renaming process, the function also checks whether the new file name already exists to avoid naming conflicts.

You can call this function using the following methods:

batchRenameFiles('/path/to/directory', 'old_string', 'new_string');

among,/path/to/directory The directory path for batch renaming.old_string The string to search for and replace,new_string The string to be replaced.

Successful rendering result:

You can tweak the output a bit – just add a <br> tag.