DOMCharacterData::deleteData

(PHP 5, PHP 7, PHP 8)

DOMCharacterData::deleteData — Remove a range of characters from the node

说明

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

Deletes count characters starting from position offset.

参数

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.

返回值

成功时返回 true， 或者在失败时返回 false。

错误／异常

DOM_INDEX_SIZE_ERR

Raised if offset is negative or greater than the number of 16-bit units in data, or if count is negative.

参见