Moves all data from source buffer to the front of current buffer

# EventBuffer::prependBuffer

(PECL event >= 1.2.6-beta)

EventBuffer::prependBuffer — Moves all data from source buffer to the front of current buffer

### 说明

public function EventBuffer::prependBuffer( EventBuffer `$buf` ): bool

Behaves as EventBuffer::addBuffer(), except that it moves data to the front of the buffer.

### 参数

`buf`

  Source buffer.

### 返回值

成功时返回 `true`， 或者在失败时返回 `false`。

### 参见

- EventBuffer::add() - Append data to the end of an event buffer
- EventBuffer::addBuffer() - Move all data from a buffer provided to the current instance of EventBuffer
- EventBuffer::prepend() - Prepend data to the front of the buffer

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