original_string: private function getFileContents($files)
  	{
  		$content = '';
  		$basePath = $this->basePath;
  
  		array_walk($files,function(&$value, $key) use(&$content, $basePath){
  			if(file_exists($basePath.$value))
  			$content .= file_get_contents($basePath.$value);
  		});
  		return $content;
  	}
code: private function getFileContents($files)
  	{
  		$content = '';
  		$basePath = $this->basePath;
  
  		array_walk($files,function(&$value, $key) use(&$content, $basePath){
  			if(file_exists($basePath.$value))
  			$content .= file_get_contents($basePath.$value);
  		});
  		return $content;
  	}
code_tokens: private function getFileContents ( $ files ) { $ content = '' ; $ basePath = $ this -> basePath ; array_walk ( $ files , function ( & $ value , $ key ) use ( & $ content , $ basePath ) { if ( file_exists ( $ basePath . $ value ) ) $ content .= file_get_contents ( $ basePath . $ value ) ; } ) ; return $ content ; }
docstring: get contents of all registered files, it is also check whether file is exist or not
  @param array $files all files that will be retrieved
  @return strign return mixed of all contents
docstring_tokens: get contents of all registered files it is also check whether file is exist or not