Insert a string at the specified UTF-8 codepoint offset

# Dom\CharacterData::insertData

(PHP 8 >= 8.4.0)

Dom\CharacterData::insertData — Insert a string at the specified UTF-8 codepoint offset

### 说明

public function Dom\CharacterData::insertData(int `$offset`, string `$data`): void

Inserts string `data` at position `offset`.

### 参数

`offset`

  The character offset at which to insert.

`data`

  The string to insert.

### 返回值

成功时返回 `true`， 或者在失败时返回 `false`。

### 错误／异常

May throw a DOMException with the following error codes:

`DOM_INDEX_SIZE_ERR`

  Raised if `offset` is negative or greater than the number of UTF-8 codepoints in data.

### 参见

- Dom\CharacterData::appendData() - Append the string to the end of the character data of the node
- Dom\CharacterData::deleteData() - Remove a range of characters from the character data
- Dom\CharacterData::replaceData() - Replace a substring within the character data
- Dom\CharacterData::substringData() - Extracts a range of data from the character data

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