DOMCharacterData::substringData

(PHP 5, PHP 7, PHP 8)

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

Description

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

Returns the specified substring.

Parameters

offset

Start offset of substring to extract.

count

The number of characters to extract.

Return Values

The specified substring. If the sum of offset and count exceeds the length, then all 16-bit units to the end of the data are returned.

Errors/Exceptions

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.

See Also