What to do if php downloads doc garbled characters

The solution to garbled php downloaded doc: first open the corresponding code file; then clean it through "ob_end_clean()" before the Header.

The operating environment of this article: windows7 system, PHP7.1 version, DELL G3 computer

PHP download DOC garbled code?

I recently built a system that required downloading the doc file

After the previous code was downloaded, it was always garbled when opened...

I haven’t found it on Google for a long time. Solution

Finally got it done later

Must be cleaned before Header, that is, ob_end_clean()

$file_size = filesize($logName);
        ob_end_clean();
        header("Content-type:application/octet-stream");
        header("Accept-Ranges:bytes");
        header("Accept-Length:$file_size");
        header("Content-Disposition:attachment;filename=" . $fileName);
        $fp = fopen($logName, "r");
        $buffer_size = 1024;
        $cur_pos = 0;
        while (!feof($fp) && $file_size - $cur_pos > $buffer_size) {
            $buffer = fread($fp, $buffer_size);
            echo$buffer;
            $cur_pos+=$buffer_size;
        }
        $buffer = fread($fp, $file_size - $cur_pos);
        echo$buffer;
        fclose($fp);
        return true;

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