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bzdecompress

(PHP 4 >= 4.3.3, PHP 5)

bzdecompress -- Decompresses bzip2 encoded data

说明

mixed bzdecompress ( string source [, int small] )

bzdecompress() decompresses the given string containing bzip2 encoded data.

参数

source

The string to decompress.

small

If TRUE, an alternative decompression algorithm will be used which uses less memory (the maximum memory requirement drops to around 2300K) but works at roughly half the speed.

See the bzip2 documentation for more information about this feature.

返回值

The decompressed string or number of error in case of error.

范例

例子 1. Decompressing a String

<?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";
?>

参见

bzcompress()


add a note add a note User Contributed Notes
balint * atres / ath / cx
10-Jan-2006 09:02
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)
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