_php instance of the MD5 method of recursively generating a file in a directory of Linux systems

MD5 using md5sum recursively to generate the entire directory under Linux
Today to use md5sum operation directory, recursively generate all the files in the directory MD5 value, the results found that it does not support recursive operation and then wrote a PHP script to deal with
Code:

  <?php $path = '/data/www/bbs/source ';    $outfile = ' file.md5 ';       GET_FILE_MD5 ($path, $outfile);      function Get_file_md5 ($path, $outfile) {$path = RTrim ($path, '/');        if (function_exists (' Scandir ')) {$files = Scandir ($path);          foreach ($files as $v) {if ($v! = '. ' && $v! = ') {$file = $path. '            /'. $v;            if (Is_dir ($file)) {get_file_md5 ($file, $outfile); }else {file_put_contents ($outfile, Md5_file ($file). " ". $file."            \ n ", file_append);        }}}}else {$files = Opendir ($path);            while (($f = Readdir ($files))!== false) {if ($f = = '. ' | | $f = = ' ... ')          Continue $file = $path. '          /'. $f;          if (Is_dir ($file)) {get_file_md5 ($file, $outfile); }else {file_put_contents ($outfile, Md5_file ($file). " ". $file." \ n ", FILE_append);      }} closedir ($files);  }    }

Note: The resulting MD5 value and the file are two spaces, otherwise the error is as follows

Copy the Code code as follows: Md5sum:file1.md5:no properly formatted MD5 checksum lines found

In a simpler way, use the Linux Find command to get the word done.
Code:

Test

  Md5sum-c file1.md5   md5sum-c file2.md5  

This will output all the test results to the screen, if the last one shows such information md5sum:warning:2 of 1147 computed checksums did not match then indicates that there are 2 non-conforming in a total of 1147 articles
Then we can

It's easy to know which files have been tampered with.

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