Php/docs/eventbuffer.substr
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EventBuffer::substr
(PECL event >= 1.6.0)
EventBuffer::substr — Substracts a portion of the buffer data
说明
public
EventBuffer::substr
(
int
$start
[,
int
$length
] ) : string
Substracts up to
length
bytes of the buffer data beginning at
start
position.
参数
start
- The start position of data to be substracted.
length
- Maximum number of bytes to substract.
返回值
Returns the data substracted as a
string
on success, or false
on failure.