EventBuffer::substr

(PECL event >= 1.6.0)

EventBuffer::substr — Subtracts a portion of the buffer data

说明

public function EventBuffer::substr( int $start , int $length = ?): string

Subtracts up to length bytes of the buffer data beginning at start position.

参数

start
The start position of data to be subtracted.
length
Maximum number of bytes to subtract.

返回值

Returns the data subtracted as a string on success, or false on failure.

参见