original_string: protected function _clearDirectory($path, $now, $threshold)
      {
          if (!is_dir($path)) {
              return;
          }
          $prefixLength = strlen($this->_config['prefix']);
  
          $dir = dir($path);
          while (($entry = $dir->read()) !== false) {
              if (substr($entry, 0, $prefixLength) !== $this->_config['prefix']) {
                  continue;
              }
  
              try {
                  $file = new SplFileObject($path . $entry, 'r');
              } catch (Exception $e) {
                  continue;
              }
  
              if ($threshold) {
                  $mtime = $file->getMTime();
                  if ($mtime > $threshold) {
                      continue;
                  }
  
                  $expires = (int)$file->current();
                  if ($expires > $now) {
                      continue;
                  }
              }
              if ($file->isFile()) {
                  $filePath = $file->getRealPath();
                  $file = null;
  
                  //@codingStandardsIgnoreStart
                  @unlink($filePath);
                  //@codingStandardsIgnoreEnd
              }
          }
  
          $dir->close();
      }
code: protected function _clearDirectory($path, $now, $threshold)
      {
          if (!is_dir($path)) {
              return;
          }
          $prefixLength = strlen($this->_config['prefix']);
  
          $dir = dir($path);
          while (($entry = $dir->read()) !== false) {
              if (substr($entry, 0, $prefixLength) !== $this->_config['prefix']) {
                  continue;
              }
  
              try {
                  $file = new SplFileObject($path . $entry, 'r');
              } catch (Exception $e) {
                  continue;
              }
  
              if ($threshold) {
                  $mtime = $file->getMTime();
                  if ($mtime > $threshold) {
                      continue;
                  }
  
                  $expires = (int)$file->current();
                  if ($expires > $now) {
                      continue;
                  }
              }
              if ($file->isFile()) {
                  $filePath = $file->getRealPath();
                  $file = null;
  
                  //@codingStandardsIgnoreStart
                  @unlink($filePath);
                  //@codingStandardsIgnoreEnd
              }
          }
  
          $dir->close();
      }
code_tokens: protected function _clearDirectory ( $ path , $ now , $ threshold ) { if ( ! is_dir ( $ path ) ) { return ; } $ prefixLength = strlen ( $ this -> _config [ 'prefix' ] ) ; $ dir = dir ( $ path ) ; while ( ( $ entry = $ dir -> read ( ) ) !== false ) { if ( substr ( $ entry , 0 , $ prefixLength ) !== $ this -> _config [ 'prefix' ] ) { continue ; } try { $ file = new SplFileObject ( $ path . $ entry , 'r' ) ; } catch ( Exception $ e ) { continue ; } if ( $ threshold ) { $ mtime = $ file -> getMTime ( ) ; if ( $ mtime > $ threshold ) { continue ; } $ expires = ( int ) $ file -> current ( ) ; if ( $ expires > $ now ) { continue ; } } if ( $ file -> isFile ( ) ) { $ filePath = $ file -> getRealPath ( ) ; $ file = null ; //@codingStandardsIgnoreStart @ unlink ( $ filePath ) ; //@codingStandardsIgnoreEnd } } $ dir -> close ( ) ; }
docstring: Used to clear a directory of matching files.
  
  @param string $path The path to search.
  @param int $now The current timestamp
  @param int $threshold Any file not modified after this value will be deleted.
  @return void
docstring_tokens: Used to clear a directory of matching files .