DOMCharacterData::substringData

(PHP 5, PHP 7, PHP 8)

DOMCharacterData::substringData — Extracts a range of data from the character data

public DOMCharacterData::substringData(int $offset, int $count): string|false

Returns the specified substring.

The specified substring. If the sum of offset and count exceeds the length, then all UTF-8 codepoints to the end of the data are returned.

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::deleteData() - Remove a range of characters from the character data
DOMCharacterData::insertData() - Insert a string at the specified UTF-8 codepoint offset
DOMCharacterData::replaceData() - Replace a substring within the character data

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