Zlib Compression

Introduction

This module enables you to transparently read and write gzip (.gz) compressed files, through versions of most of the filesystem functions which work with gzip-compressed files (and uncompressed files, too, but not with sockets).

Note:
PHP comes with a fopen-wrapper for .gz-files. More information is available in the section about zlib://.

Installing/Configuring
Predefined Constants
Examples
Zlib Functions
- deflate_add — Incrementally deflate data
- deflate_init — Initialize an incremental deflate context
- gzclose — Close an open gz-file pointer
- gzcompress — Compress a string
- gzdecode — Decodes a gzip compressed string
- gzdeflate — Deflate a string
- gzencode — Create a gzip compressed string
- gzeof — Test for EOF on a gz-file pointer
- gzfile — Read entire gz-file into an array
- gzgetc — Get character from gz-file pointer
- gzgets — Get line from file pointer
- gzgetss — Get line from gz-file pointer and strip HTML tags
- gzinflate — Inflate a deflated string
- gzopen — Open gz-file
- gzpassthru — Output all remaining data on a gz-file pointer
- gzputs — Alias of gzwrite
- gzread — Binary-safe gz-file read
- gzrewind — Rewind the position of a gz-file pointer
- gzseek — Seek on a gz-file pointer
- gztell — Tell gz-file pointer read/write position
- gzuncompress — Uncompress a compressed string
- gzwrite — Binary-safe gz-file write
- inflate_add — Incrementally inflate encoded data
- inflate_get_read_len — Get number of bytes read so far
- inflate_get_status — Get decompression status
- inflate_init — Initialize an incremental inflate context
- ob_gzhandler — ob_start callback function to gzip output buffer
- readgzfile — Output a gz-file
- zlib_decode — Uncompress any raw/gzip/zlib encoded data
- zlib_encode — Compress data with the specified encoding
- zlib_get_coding_type — Returns the coding type used for output compression
DeflateContext — The DeflateContext class
InflateContext — The InflateContext class