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【PHP】分割文件并进行Base64编解码

作者:DDT / 发布于2012/11/19/ 708

<!DOCTYPE html>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title></title>
    </head>
    <body>
        <?php
        $orgFile = 'D:\GdiPlus.dll';
        $cacheFileName = 'GdiPlus.dll';

        splitFile($orgFile, pow(2,19));
        mergeFile('GdiPlus.dll');

        function splitFile($fileName,$block) {
            global $cacheFileName;

            if (!file_exists($fileName)) return false;

            $num    = 1;    
            $file   = fopen($fileName, 'rb');
            while ($content = fread($file,$block)) {
                $cacheFile = $cacheFileName . '.part' . $num++ ;
                $cfile = fopen($cacheFile, 'wb');
                fwrite($cfile, base64_encode($content));
                fflush($cfile);
                fclose($cfile);
            }
            fclose($file);
        }

        function mergeFile($targetFile) {
            global $cacheFileName;

            $num = 1;
            $file = fopen($targetFile, 'wb');
            while ($num > 0) {
                $cacheFile = $cacheFileName . '.part' . $num++;
                if (file_exists($cacheFile)) {
                    $cfile = fopen($cacheFile, 'rb');
                    $content = fread($cfile, filesize($cacheFile));
                    fclose($cfile);
                    fwrite($file, base64_decode($content));
                    fflush($file);
                } else {
                    $num = -1;
                }
            }
            fclose($file);
        }
        ?>
    </body>
</html>

试试其它关键字

　分割文件　

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