title: PHP auto_prepend_file causes xdebug profiler to fail
body: <p>I use xDebug 2.5.5 on a Windows 7 machine running Apache 2.4 and PHP 5.6.  xDebug profiler works ok except when I use a <a href="http://php.net/manual/en/ini.core.php#ini.auto-prepend-file" rel="nofollow noreferrer">php auto_prepend_file</a></p>
  <p>in <strong>php.ini</strong></p>
  <pre><code>auto_prepend_file = &quot;C:\path\to\init.php&quot;
  </code></pre>
  <p>or in <strong>Apache Vhost</strong></p>
  <pre><code>php_value auto_prepend_file &quot;C:\path\to\init.php&quot;
  </code></pre>
  <p>In either case, adding this directive will cause the generated profiler snapshot <em>cachegrind.out.####</em>, to be corrupted somehow.  I cannot open it either in PhpStorm (my IDE) or using <a href="https://sourceforge.net/projects/wincachegrind/" rel="nofollow noreferrer">WinCacheGrind</a>. In addition, I cannot delete the snapshot until I kill the Apache process</p>
  <p><strong>WinCacheGrind error</strong></p>
  <blockquote>
  <p>Access violation at address 004A5908 in module 'WinCacheGrind.exe'.</p>
  <p>Read of address 00000000</p>
  </blockquote>
  <p><strong>PhpStorm error</strong></p>
  <blockquote>
  <p>Incorrect Profiler snapshot format: Incorrect name format</p>
  </blockquote>
  <p>Any advice?</p>
  <p>PS: I voted to close my <a href="https://stackoverflow.com/questions/45259259/phpstorm-wont-open-xdebug-profiler-snapshot-file">earlier issue</a> that was misslabeled b/c I thought my problem had to do with PhpStorm not xDebug</p>