DOMCharacterData::insertData

(PHP 5, PHP 7, PHP 8)

DOMCharacterData::insertData — Insert a string at the specified UTF-8 codepoint offset

public DOMCharacterData::insertData(int $offset, string $data): bool

Inserts string data at position offset.

成功时返回 true，或者在失败时返回 false。

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

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