protected function callbacks(): array
    {
        if (!is_array($this->callbackList)) {
            if (!file_exists($this->configPath . '/xsl-callbacks.ini')) {
                $this->callbackList = [];
            } else {
                $this->callbackList = @parse_ini_file($this->configPath . '/xsl-callbacks.ini');
                if (false === $this->callbackList) {
                    throw new XslCallbackException(
                            'XSL callback in ' . $this->configPath
                            . '/xsl-callbacks.ini contains errors and can not be parsed.'
                    );
                }
            }
        }

        return $this->callbackList;
    }
protected function callbacks(): array
    {
        if (!is_array($this->callbackList)) {
            if (!file_exists($this->configPath . '/xsl-callbacks.ini')) {
                $this->callbackList = [];
            } else {
                $this->callbackList = @parse_ini_file($this->configPath . '/xsl-callbacks.ini');
                if (false === $this->callbackList) {
                    throw new XslCallbackException(
                            'XSL callback in ' . $this->configPath
                            . '/xsl-callbacks.ini contains errors and can not be parsed.'
                    );
                }
            }
        }

        return $this->callbackList;
    }
protected function callbacks ( ) : array { if ( ! is_array ( $ this -> callbackList ) ) { if ( ! file_exists ( $ this -> configPath . '/xsl-callbacks.ini' ) ) { $ this -> callbackList = [ ] ; } else { $ this -> callbackList = @ parse_ini_file ( $ this -> configPath . '/xsl-callbacks.ini' ) ; if ( false === $ this -> callbackList ) { throw new XslCallbackException ( 'XSL callback in ' . $ this -> configPath . '/xsl-callbacks.ini contains errors and can not be parsed.' ) ; } } } return $ this -> callbackList ; }
reads list of callbacks from configuration

@return  array
@throws  \stubbles\xml\xsl\XslCallbackException
reads list of callbacks from configuration