Swoole\Buffer::substr

Read 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

offset

The offset.

length

The length.

remove

Whether to remove the data from the memory buffer.

戻り値

The data or string readed from the memory buffer.