(PHP 5 >= 5.1.0)
XMLReader::open — Set the URI containing the XML to parse
$URI
   [, string $encoding
   [, int $options = 0
  ]] )Set the URI containing the XML document to be parsed.
URI
     URI pointing to the document.
encoding
     
       The document encoding or NULL.
      
options
     A bitmask of the LIBXML_* constants.
   成功时返回 TRUE, 或者在失败时返回 FALSE。 If called statically, returns an
   XMLReader 或者在失败时返回 FALSE.
  
此方法可以被静态调用,但会抛出一个 E_STRICT 错误。
| 版本 | 说明 | 
|---|---|
| 5.2.0 | 
        encoding and options
        were added.
        |