public function guess(string $path): string
    {
        if (!is_file($path)) {
            throw new FileNotFoundException($path);
        }

        if (!is_readable($path)) {
            throw new AccessDeniedException($path);
        }

        if (0 == count($this->guesserList)) {
            $msg = 'Unable to guess the mime type as no guessers are available';
            if (!FileInfoMimeType::isSupported()) {
                $msg .= ' (Did you enable the php_fileinfo extension?)';
            }
            throw new \LogicException($msg);
        }

        /** @var FileInfoMimeType|BinaryMimeType $guesser */
        foreach ($this->guesserList as $guesser) {
            if ('' != $mimeType = $guesser->guess($path)) {
                return $mimeType;
            }
        }

        return '';
    }
public function guess(string $path): string
    {
        if (!is_file($path)) {
            throw new FileNotFoundException($path);
        }

        if (!is_readable($path)) {
            throw new AccessDeniedException($path);
        }

        if (0 == count($this->guesserList)) {
            $msg = 'Unable to guess the mime type as no guessers are available';
            if (!FileInfoMimeType::isSupported()) {
                $msg .= ' (Did you enable the php_fileinfo extension?)';
            }
            throw new \LogicException($msg);
        }

        /** @var FileInfoMimeType|BinaryMimeType $guesser */
        foreach ($this->guesserList as $guesser) {
            if ('' != $mimeType = $guesser->guess($path)) {
                return $mimeType;
            }
        }

        return '';
    }
public function guess ( string $ path ) : string { if ( ! is_file ( $ path ) ) { throw new FileNotFoundException ( $ path ) ; } if ( ! is_readable ( $ path ) ) { throw new AccessDeniedException ( $ path ) ; } if ( 0 == count ( $ this -> guesserList ) ) { $ msg = 'Unable to guess the mime type as no guessers are available' ; if ( ! FileInfoMimeType :: isSupported ( ) ) { $ msg .= ' (Did you enable the php_fileinfo extension?)' ; } throw new \ LogicException ( $ msg ) ; } /** @var FileInfoMimeType|BinaryMimeType $guesser */ foreach ( $ this -> guesserList as $ guesser ) { if ( '' != $ mimeType = $ guesser -> guess ( $ path ) ) { return $ mimeType ; } } return '' ; }
Get mime type or NULL, if none could be guessed.

@param string $path Path to the file
@return string
@throws \LogicException
@throws FileNotFoundException
@throws AccessDeniedException
Get mime type or NULL if none could be guessed .