# XMLDiff\DOM::diff

(PECL xmldiff >= 0.8.0)

XMLDiff\DOM::diff — Diff two DOMDocument objects

### 说明

public XMLDiff\DOM::diff(DOMDocument `$from`, DOMDocument `$to`): DOMDocument

Diff two DOMDocument instances and produce the new one containing the diff information.

### 参数

`from`

  Source DOMDocument object.

`to`

  Target DOMDocument object.

### 返回值

DOMDocument with the diff information or NULL.

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