bzwrite
Introduction
Compression and Archive Extensions
PHP Manual
LZF
Introduction
Installing/Configuring
Installation
Runtime Configuration
Resource Types
Predefined Constants
LZF Functions
lzf_compress
— LZF compression
lzf_decompress
— LZF decompression
lzf_optimized_for
— Determines what LZF extension was optimized for
bzwrite
Introduction
Compression and Archive Extensions
PHP Manual