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# bzwrite

(PHP 4 >= 4.3.3, PHP 5)

bzwrite -- Binary safe bzip2 file write

## 说明

int bzwrite ( resource bz, string data [, int length] )

bzwrite() writes a string into the given bzip2 file stream.

## 参数

bz

  The file pointer. It must be valid and must point to a file successfully opened by bzopen().

data

  The written data.

length

  If supplied, writing will stop after length (uncompressed) bytes have been written or the end of data is reached, whichever comes first.

## 返回值

Returns the number of bytes written, or `FALSE` on error.

## 例

例子 1. bzwrite() example
`<?php $str = "uncompressed data"; $bz = bzopen("/tmp/foo.bz2", "w"); bzwrite($bz, $str, strlen($str)); bzclose($bz); ?>`

## 参见

bzread()
bzopen()

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