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This document uses PHP Chinese website manual Release
(PECL event >= 1.2.6-beta)
EventBuffer::drain — Removes specified number of bytes from the front of the buffer without copying it anywhere
$len
)Behaves as EventBuffer::read() , except that it does not copy the data: it just removes it from the front of the buffer.
len
The number of bytes to remove from the buffer.
Returns TRUE
on success. Otherwise FALSE
.