PHP creates and deletes directory operation class

<?
class FileUtil {
  /**
   * 建立文件夹
   *
   * @param string $aimUrl
   * @return viod
   */
  function createDir($aimUrl) {
    $aimUrl = str_replace('', '/', $aimUrl);
    $aimDir = '';
    $arr = explode('/', $aimUrl);
    foreach ($arr as $str) {
      $aimDir .= $str . '/';
      if (!file_exists($aimDir)) {
        mkdir($aimDir);
      }
    }
  }

* Manipulate file class

* Example:

* FileUtil::createDir('a/1/2/3'); Test to create a folder to create a/1/ 2/3 Folder

* FileUtil::createFile('b/1/2/3'); # * FileUtil::createFile('b/1/2/3.exe'); Test to create a file Create a 3.exe file under the b/1/2/ folder

* FileUtil::copyDir ('b','d/e'); Test copy the folder to create a d/e folder and copy the contents of the b folder into it

* FileUtil::copyFile('b/1/ 2/3.exe','b/b/3.exe'); Test copying files Create a b/b folder and copy the 3.exe file in the b/1/2 folder into it

* Fileutil :: movedir ('a/', 'b/c'); test the mobile folder to create a B/C folder, move the content under the A folder, delete the A folder

## * FileUtil::moveFile('b/1/2/3.exe','b/d/3.exe'); Test moving files Create a b/d folder and put b/1/ Move 3.exe in 2

* FileUtil::unlinkFile('b/d/3.exe'); Test deletion of files Delete b/d/3.exe file

* FileUtil::unlinkDir('d'); Test deletion of folder Delete d folder

*/

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