code: function read_content()
  	{
  		if ($this->external_source_read) {
  			$fct = $this->source_read_name;
  			return $fct($this->container);
  		} else {
  			$content = FALSE;
  			if ($handle = @fopen($this->container, 'rb')) {
  				$size = @filesize($this->container);
  				$content = @fread($handle, $size);
  				fclose($handle);
  			}
  			return $content;
  		}
  	}
docs: Read a stream and return its content or FALSE if fail