Swoole\Buffer::substrRead data from the memory buffer based on offset and length. Or remove data from the memory buffer. 説明public string Swoole\Buffer::substr(int
$offset, int $length = ?, bool $remove = ?)If $remove is set to be true and $offset is set to be 0, the data will be removed from the buffer. The memory for storing the data will be released when the buffer object is deconstructed. パラメータ
戻り値The data or string readed from the memory buffer. |