php 한글 메뉴얼 도움말 검색 사이트 Copies out specified number of bytes from the front of the buffer [eventbuffer.copyout]

설명

public int EventBuffer::copyout ( string &$data , int $max_bytes )

Behaves just like EventBuffer::read() , but does not drain any data from the buffer. I.e. it copies the first max_bytes bytes from the front of the buffer into data . If there are fewer than max_bytes bytes available, the function copies all the bytes there are.

인수

data: Output string.
max_bytes: The number of bytes to copy.

반환값

Returns the number of bytes copied, or -1 on failure.

참고

EventBuffer::read() - Read data from an evbuffer and drain the bytes read
EventBuffer::appendFrom() - Moves the specified number of bytes from a source buffer to the end of the current buffer