php在线文件与文件夹压缩实例代码
注明这款php文件压缩代码他要借助于zip.exe文件,所以我们要把zip.exe压缩文件给拿出来,实例代码如下:
<?php if ( !IsSet( $_GET [ 'dirname' ]) ) { show_input_form() ; } else { // check if empty if ( empty empty ( $_GET [ 'dirname' ]) ) { hg_exit( "请输入文件夹名!" ) ; } // check valid dirname if ( FALSE !== strpos ( $_GET [ 'dirname' ], "/" ) ) { hg_exit( "" / " 是非法的文件夹名!" ) ; } if ( FALSE !== strstr ( $_GET [ 'dirname' ], ".." ) ) { hg_exit( "" .. " 是非法的文件夹名!" ) ; } // check valid dir if ( ! is_dir ( $_GET [ 'dirname' ]) ) { hg_exit( "" { $_GET [ 'dirname' ]} " 不是一个有效的文件夹!" ) ; } $szData = "" ; $szInfo = "" ; $file_count = @ZipDir( $_GET [ 'dirname' ], & $szData , & $szInfo ) ; $info_size_16byte = @sprintf( "%016d" , @ strlen ( $szInfo )) ; $szData = @sprintf( "%016d" , $file_count ) . $info_size_16byte . $szInfo . $szData ; $filename = $_GET [ 'dirname' ] . ".dat" ; if ( function_exists(gzencode) ) { $szData = gzencode( $szData ) ; $filename .= ".gz" ; } Header( "Content-type: application/octet-stream" ); Header( "Accept-Ranges: bytes" ); Header( "Accept-Length: " . strlen ( $szData )); Header( "Content-Disposition: attachment; filename=$filename" ); echo $szData ; } function show_input_form() { echo HtmlHead( "文件打包" ) ; echo "<form name=" input ">n" . "请输入要打包的文件夹,注意,仅当前目录下的文件夹才可以下载!<p>n" . "<input name=" dirname ">n" . "<input type=" button " value=" 确定 " onClick=" show_download_link(dirname.value); ">n" . "</form>n" ; echo "<script>n" . "input.dirname.focus();n" . "function show_download_link(dir)n" . "{" . " var top = (screen.height-200)/2 ;n" . " var left = (screen.width-300)/2 ;n" . " newwin=window.open('', '', 'width=300,height=200,top=' + top + ',left=' + left + ', resizable=0,scrollbars=auto');n" . " url = " { $_SERVER [ 'PHP_SELF' ]} " + " ?dirname= " + dir ;n" . " newwin.document.write('<a href=' + url + '>点击此链接下载，<br>或者右键点击此处选择" 另存为 "</a>');n" . "}" . "</script>n" ; echo HtmlFoot() ; } function ZipDir( $szDirName , & $szData , & $szInfo ) { // write dir header $szInfo .= "$szDirName|[dir]n" ; $file_count = 0 ; $hDir = OpenDir( $szDirName ) ; while ( $file = ReadDir( $hDir ) ) { if ( $file == "." || $file == ".." ) continue ; $szCurFile = "$szDirName/$file" ; if ( Is_Dir ( $szCurFile ) ) { $file_count += ZipDir( $szCurFile , & $szData , & $szInfo ) ; } else if ( Is_File ( $szCurFile ) ) { $hCurFile = fopen ( $szCurFile , "rb" ) ; $size = filesize ( $szCurFile ) ; $szStream = fread ( $hCurFile , $size ) ; fclose( $hCurFile ) ; $file_count ++ ; // write info $szInfo .= "$szCurFile|$sizen" ; // write data $szData .= $szStream ; } } // write dir footer $szInfo .= "$szDirName|[/dir]n" ; return $file_count ; } function hg_exit( $str ) { echo HtmlHead( "Error, exit!" ) ; echo "<h5>" . $str . "</h5>" ; echo HtmlFoot() ; exit ; } function HtmlHead( $title ) { return "<html>nn<head>n" . "<meta http-equiv=" Content-Type " content=" text/html; charset=gb2312 ">n" . "<style type=" text/css教程 ">n" . "body,input,td{font:12px verdana}n" . "</style>n" . "</head>nn<body>nn" ; } function HtmlFoot() { return Copyright() . "n</body>nn</html>" ; } function Copyright() { return "<center><font size=" 5 " face=" 楷体_GB2312 " color=" red ">使用完请立即删除本文件，以避免被其它人发现使用!</font></center>n" . "<br><hr color=" #003388 ">n" . "<center>n" . "<p style=" font-family:verdana; font-size:12px ">Contact us: n" . "<a href=" http: //www.phpfensi.com/" target="_blank">http://www.phpfensi.com/</a></p>n" . "</center>n" . "</body>n" . "n" . "</html>" ; } ?>查看更多关于php在线文件与文件夹压缩实例代码 - php文件操作的详细内容...
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