文字
DOMCharacterData::deleteData
(PHP 5, PHP 7)
DOMCharacterData::deleteData — Remove a range of characters from the node
说明
void DOMCharacterData::deleteData
( int
$offset
, int $count
)
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
offsetandcountexceeds the length, then all characters to the end of the data are deleted.
返回值
没有返回值。
错误／异常
-
DOM_INDEX_SIZE_ERR -
Raised if
offsetis negative or greater than the number of 16-bit units in data, or ifcountis negative.
参见
- DOMCharacterData::appendData() - Append the string to the end of the character data of the node
- DOMCharacterData::insertData() - Insert a string at the specified 16-bit unit offset
- DOMCharacterData::replaceData() - Replace a substring within the DOMCharacterData node
- DOMCharacterData::substringData() - Extracts a range of data from the node