php目录文件在线解压缩程序
本文章提供一款完整的php目录 文件在线解压缩程序，他可打包指定目录并且把目录下所有目录与文件名都打包好,按rar的方式打包,目录结构不变,同时也提供解压功能.代码如下:
<?php
$fz = new fmzip;
$fz->setzipname("打包文件名");
//打包/压缩
$fz->setsource("待打包目录");
$fz->compress($silent, $compress);
//解包/解压
$fz->settarget("待解包目录");
$fz->uncompress($silent);
class fmzip {
var $source; //压缩源
var $target; //解压目的文件夹
var $zipname; //压缩文件名
var $handle; //打开压缩文件的句柄
var $silent; //是否输出
var $count_dir; //计数器_文件夹
var $count_file; //计数器_文件
var $dirlist;
function setsource($source) //设置压缩源
{
if (!file_exists($source)) die("source <$source> does not exist.");
$this->source = $source;
}
function settarget($target) //设置解压目的文件夹
{
if (!file_exists($target)) $this->makedir($target);
chdir(dirname($_server['script_filename']));
if (substr($target, -1) == "/") $target = substr($target, 0, strlen($target) - 1);
if (!file_exists($target)) {
die("target <$target> does not exist.");
}
$this->target = $target;
}
function setzipname($zipname) //设置压缩文件名
{
if (emptyempty($zipname)) $zipname = "fmzip.fz";
$this->zipname = $zipname;
}
function compress($silent = false, $compress = true) //压缩
{
$this->silent = $silent;
if ($silent === false) echo "<pre>compressing...rn";
if (is_file("$this->zipname")) unlink("$this->zipname");
$this->handle = fopen($this->zipname, "w"); //创建压缩文件
if ($this->handle == null) die("error creating $this->zipname"); //打开失败
$this->count_dir = 0;
$this->count_file = 0; //初始化计数器
$this->merge($this->source); //压缩
fwrite($this->handle, "-1"); //结束标志
fclose($this->handle); //关闭文件
echo "rndirectory: $this->count_dir";
echo "rnfile: $this->count_filern";
if (function_exists("gzcompress") && $compress == true) {
file_put_contents("$this->zipname.gz", gzcompress(file_get_contents("$this->zipname")));
unlink("$this->zipname");
}
if ($silent === false) {
echo $this->listfile();
echo "</pre>";
}
}
function listfile() {
if (file_exists("$this->zipname.gz")) return "<a href="$this->zipname . gz" target="_blank">download $this->zipname.gz</a>";
if (file_exists("$this->zipname")) return "<a href="$this->zipname" target="_blank">download $this->zipname</a>";
}
function merge($dir) //合并文件、文件夹(递归)
{
/* 说明：不处理link。 */
if (is_dir($dir)) //如果压缩源是文件夹
{
$list = scandir($dir); //扫描文件列表
natcasesort($list);
foreach ($list as $file) //先处理文件夹
{
$full = "$dir/$file";
if (!is_dir($full) || $file == "." || $file == "..") continue; //只处理文件夹
$this->count_dir++;
if ($this->silent === false) echo "[dir] $fullrn"; //输出提示
fwrite($this->handle, $this->file_info($full)); //写入文件夹信息
$this->merge($full); //递归合并下级文件夹
} //文件夹处理完毕;
foreach ($list as $file) //处理文件
{
$full = "$dir/$file";
if (!is_file($full) || $file == "." || $file == "..") continue; //只处理文件
$this->count_file++;
if ($this->silent === false) echo "[file] $fullrn"; //输出提示
fwrite($this->handle, $this->file_info($full)); //写入文件信息
} //文件处理完毕
} else {
$this->count_file++;
if ($this->silent === false) echo "[file] $fullrn"; //输出提示
fwrite($this->handle, $this->file_info($file)); //写入文件信息
}
} //end function merge
function file_info($file) {
$perm = substr(sprintf('%o', fileperms($file)) , -3); //权限
$filename = str_replace($this->source, "", $file);
if (is_file($file)) //文件
{
$size = filesize($file); //文件大小
return "1rn$filenamern$permrn$sizern" . file_get_contents($file) . "rn"; // .文件内容
}
if (is_dir($file)) //目录
return "0rn$filenamern$permrn";
} //end function file_info
function uncompress($silent = false) {
$this->silent = $silent;
if ($silent === false) echo "<pre>uncompressing...rn";
if (substr($this->zipname, -3) == ".gz") $this->zipname = substr($this->zipname, 0, strlen($this->zipname) - 3);
if (file_exists("$this->zipname.gz")) {
if (!function_exists(gzuncompress)) die("function gzuncompress is not supported. unable to continue.");
file_put_contents($this->zipname, gzuncompress(file_get_contents("$this->zipname.gz")));
}
$this->handle = fopen($this->zipname, "r");
if ($this->handle == null) die("error reading $this->zipname"); //打开失败
$count = 0;
while (1) {
$count++;
$type = $this->read_line(); //读取类型
if ($type === "-1") break; //处理完毕,退出
$filename = $this->target . $this->read_line(); //读取文件名
$permission = $this->read_line(); //读取权限
/* <文件夹> [0]n[file_name]n[perm]n */
if ($type === "0") //目录
{
if ($this->silent === false) //输出提示
echo "[dir] $filename [$permission]rn";
$this->makedir($filename); //创建文件夹
chdir(dirname($_server['script_filename']));
chmod($filename, $permission);
$this->dirlist[$filename] = 1;
continue;
}
/* <文件> [1]n[file_name]n[perm]n[size]n[contents]n */
if ($type === "1") //文件
{
$this->count_file++;
$size = $this->read_line(); //读取文件大小
if ($this->silent === false) //输出提示
echo "[file] $filename [$permission] [size = $size]rn";
if ($size != 0) {
$fp = fopen($filename, "w");
$contents = fread($this->handle, $size);
fwrite($fp, $contents);
fclose($fp);
chmod($filename, $permission);
}
$this->read_line(); //内容后的一个回车
continue;
}
}
$this->count_dir = count($this->dirlist);
if ($silent === false) echo "ndirectory: $this->count_dir";
echo "nfile: $this->count_filen</pre>n";
fclose($this->handle);
if (file_exists("$this->zipname.gz")) unlink("$this->zipname");
} //end function uncompress;
function read_line() {
$a = fgets($this->handle);
$a = str_replace("rn", "", $a);
$a = str_replace("n", "", $a);
return $a;
}
function makedir($full) {
list($a, $b) = split("/", $full, 2);
if ($a == "") return;
if (file_exists($a) && !is_dir($a)) die("can't create dir $a");
if (!file_exists($a)) @mkdir($a);
chdir($a);
if ($b !== "") $this->makedir($b);
chdir("..");
} //end function makedir
} //end class fmzip
?>//使用方法:
#必须
include("包含这个class的php文件");
$fz = new fmzip;
$fz->setzipname("打包文件名");
#打包/压缩
$fz->setsource("待打包目录");
$fz->compress($silent,$compress);
#解包/解压
$fz->settarget("待解包目录");
$fz->uncompress($silent);
$silent : true|false (不加引号!) 是否产生输出 默认为true,不产生
$compress : true|false (不加引号!) 是否压缩 默认为true,压缩
教程链接:http://www.phprm.com/wenjian/fs4259.html
随意转载~但请保留教程地址★