XMLReader::getAttributeNo()
(PHP 5 >= 5.1.0, PHP 7)
Get the value of an attribute by index
说明
public XMLReader::getAttributeNo(int $index): string
Returns the value of an attribute based on its position or an empty string if attribute does not exist or not positioned on an element node.
参数
- $index
The position of the attribute.
返回值
The value of the attribute, or an empty string(before PHP 5.6)or NULL
(from PHP 5.6 onwards)if no attribute exists at$indexor is not positioned on the element.
更新日志
版本 | 说明 |
---|---|
5.6.0 | XMLReader::getAttributeNo() now returns NULL if the attribute doesn't exist. |
参见
- XMLReader::getAttribute() Get the value of a named attribute
- XMLReader::getAttributeNs() Get the value of an attribute by localname and URI