Bzip2 函数

bzclose — Close a bzip2 file
bzcompress — Compress a string into bzip2 encoded data
bzdecompress — Decompresses bzip2 encoded data
bzerrno — Returns a bzip2 error number
bzerror — Returns the bzip2 error number and error string in an array
bzerrstr — Returns a bzip2 error string
bzflush — Force a write of all buffered data
bzopen — Opens a bzip2 compressed file
bzread — Binary safe bzip2 file read
bzwrite — Binary safe bzip2 file write

PHP手册 - N: Bzip2 函数

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ec10 at gmx dot net (20-May-2004 07:34)

<?php /** * @return bool * @param string $in * @param string $out * @desc compressing the file with the bzip2-extension */ function bzip2 ($in, $out) { if (!file_exists ($in) || !is_readable ($in)) return false; if ((!file_exists ($out) && !is_writeable (dirname ($out)) || (file_exists($out) && !is_writable($out)) )) return false; $in_file = fopen ($in, "rb"); $out_file = bzopen ($out, "wb"); while (!feof ($in_file)) { $buffer = fgets ($in_file, 4096); bzwrite ($out_file, $buffer, 4096); } fclose ($in_file); bzclose ($out_file); return true; } /** * @return bool * @param string $in * @param string $out * @desc uncompressing the file with the bzip2-extension */ function bunzip2 ($in, $out) { if (!file_exists ($in) || !is_readable ($in)) return false; if ((!file_exists ($out) && !is_writeable (dirname ($out)) || (file_exists($out) && !is_writable($out)) )) return false; $in_file = bzopen ($in, "rb"); $out_file = fopen ($out, "wb"); while ($buffer = bzread ($in_file, 4096)) { fwrite ($out_file, $buffer, 4096); } bzclose ($in_file); fclose ($out_file); return true; } ?>

Bzip2 函数

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