DOMCharacterData::deleteData

(PHP 5, PHP 7, PHP 8)

DOMCharacterData::deleteData — Remove a range of characters from the character data

public DOMCharacterData::deleteData(int $offset, int $count): bool

Deletes count characters starting from position offset.

offset: The offset from which to start removing.
count: The number of characters to delete. If the sum of offset and count exceeds the length, then all characters to the end of the data are deleted.

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, or if count is negative.

DOMCharacterData::appendData() - Append the string to the end of the character data of the node
DOMCharacterData::insertData() - Insert a string at the specified UTF-8 codepoint offset
DOMCharacterData::replaceData() - Replace a substring within the character data
DOMCharacterData::substringData() - Extracts a range of data from the character data

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