XMLReader::lookupNamespace
(PHP 5 >= 5.1.0, PHP 7, PHP 8)
XMLReader::lookupNamespace — Lookup namespace for a prefix
说明
public XMLReader::lookupNamespace(string
$prefix): ?stringLookup in scope namespace for a given prefix.
参数
-
prefix -
String containing the prefix.
返回值
The value of the namespace, or null if no namespace exists.
更新日志
| 版本 | 说明 |
|---|---|
| 8.0.0 |
This function can no longer return false.
|
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