(PHP 5, PHP 7, PHP 8)
DOMCharacterData::insertData — Insert a string at the specified UTF-8 codepoint offset
Inserts string data
at position offset
.
offset
The character offset at which to insert.
data
The string to insert.
DOM_INDEX_SIZE_ERR
Raised if offset
is negative or greater than the
number of UTF-8 codepoints in data.