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

### Description

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

Inserts string `data` at position `offset`.

### Parameters

`offset`

  The character offset at which to insert.

`data`

  The string to insert.

### Return Values

Returns `true` on success or `false` on failure.

### Errors/Exceptions

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.

### See Also

- 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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