# EventBuffer::readFrom

(PECL event >= 1.7.0)

EventBuffer::readFrom — Read data from a file onto the end of the buffer

### 说明

public EventBuffer::read( mixed `$fd` , int `$howmuch` ): int

Read data from the file specified by `fd` onto the end of the buffer.

### 参数

`fd`

  Socket resource, stream, or numeric file descriptor.

`howmuch`

  Maxmimum number of bytes to read.

### 返回值

Returns the number of bytes read, or `false` on failure.

### 参见

- EventBuffer::copyout() - Copies out specified number of bytes from the front of the buffer
- EventBuffer::drain() - Removes specified number of bytes from the front of the buffer without copying it anywhere
- EventBuffer::pullup() - Linearizes data within buffer and returns it's contents as a string
- EventBuffer::readLine() - Extracts a line from the front of the buffer
- EventBuffer::appendFrom() - Moves the specified number of bytes from a source buffer to the end of the current buffer

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