# DOMXPath::registerNamespace

(PHP 5, PHP 7, PHP 8)

DOMXPath::registerNamespace — Registers the namespace with the DOMXPath object

### 说明

public DOMXPath::registerNamespace(string `$prefix`, string `$namespace`): bool

Registers the `namespace` and `prefix` with the DOMXPath object.

### 参数

`prefix`

  The prefix.

`namespace`

  The URI of the namespace.

### 返回值

成功时返回 `true`， 或者在失败时返回 `false`。

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