(PECL svn >= 0.3.0)
svn_blame — Get the SVN blame for a file
$repository_url
   [, int $revision_no = SVN_REVISION_HEAD
  ] )Get the SVN blame of a file from a repository URL.
repository_urlThe repository URL.
revision_noThe revision number.
An array of SVN blame information separated by line which includes the revision number, line number, line of code, author, and date.
Example #1 svn_blame() example
<?php
$svnurl = 'http://svn.example.org/svnroot/foo/trunk/index.php';
print_r( svn_blame($svnurl) );
?>
The above example will output something similar to:
Array
(
    [0] = Array
          (
           [rev] = 1
           [line_no] = 1
           [line] = Hello World
           [author] = joesmith
           [date] = 2007-07-02T05:51:26.628396Z
          )
    [1] = Array
          ...