©
This document uses PHP Chinese website manual Release
(PHP 4 >= 4.0.4, PHP 5, PHP 7)
bzdecompress — 解压经 bzip2 编码过的数据
$source
[, int $small
= 0
] )bzdecompress() 解压了包含 bzip2 压缩数据的指定字符串。
source
要解压的字符串。
small
如果为 TRUE
,将会使用一种内存开销更小的替代算法(最大内存需求降低至大约 2300K)但速度会降低约一半。
寻找该功能的更多信息可参见 » bzip2 文档。
解压后的字符串,如果发生了一个错误则返回一个错误码。
Example #1 解压一个字符串
<?php
$start_str = "This is not an honest face?" ;
$bzstr = bzcompress ( $start_str );
echo "Compressed String: " ;
echo $bzstr ;
echo "\n<br />\n" ;
$str = bzdecompress ( $bzstr );
echo "Decompressed String: " ;
echo $str ;
echo "\n<br />\n" ;
?>
[#1] balint * atres / ath / cx [2006-01-10 05:02:16]
I spent a while to sort out some integer results of the bzdecompress, so maybe it'll be useful for somebody else also...
(Constants from the sources.)
#define BZ_OK 0
#define BZ_RUN_OK 1
#define BZ_FLUSH_OK 2
#define BZ_FINISH_OK 3
#define BZ_STREAM_END 4
#define BZ_SEQUENCE_ERROR (-1)
#define BZ_PARAM_ERROR (-2)
#define BZ_MEM_ERROR (-3)
#define BZ_DATA_ERROR (-4)
#define BZ_DATA_ERROR_MAGIC (-5)
#define BZ_IO_ERROR (-6)
#define BZ_UNEXPECTED_EOF (-7)
#define BZ_OUTBUFF_FULL (-8)
#define BZ_CONFIG_ERROR (-9)