PHP < 5.2.0 - No files created since update to 6.x-1.0-beta1 due to missing error_get_last()

Do you have any errors or drupal messages that show up on your page?
#385924: Don't cache pages when there are PHP/MySQL errors

To test run this in a php code block

if ($error = error_get_last()){
  echo 'errors:' . $error['type'] . ' ';
}
echo 'messages:' . count(drupal_get_messages(NULL, FALSE)) . ' ';
echo 'boost_is_cacheable():' . boost_is_cacheable($GLOBALS['_boost_path']);

It should output messages:0 boost_is_cacheable():1 if its working correctly.
#478306: front page not cached

error_get_last() is reported as a PHP fatal error for undefined function for PHP 5.1 CentOS. Commenting out that bit of code in boost.module takes care of not serving pages here.

Thanks for the heads up http://us3.php.net/error_get_last php 5.2 and up support it; I need to wrap it around a function_exists().

last one was bad forgot the () for the if statement.

@XerraX
http://us3.php.net/manual/en/errorfunc.constants.php#errorfunc.constants...
PHP is nagging that somewhere in the code base your using some deprecated functions. I should probably make this (halt on error_get_last()) a setting on the performance page so pages can still be cached even if PHP is throwing dumb errors like this.

While you have that error would you mind running this PHP code block for me

$error = FALSE;
if (function_exists('error_get_last')) {
  $error = error_get_last();
}
$drupal_msg = count(drupal_get_messages(NULL, FALSE));

if ($error || $drupal_msg != 0) {
  $ttl = boost_file_get_ttl(boost_file_path($GLOBALS['_boost_path']));
  $output = t('There are <strong>php errors</strong> or <strong>drupal messages</strong> on this page, preventing boost from caching.');
  if ($error){
    $output .= t(' ERRORS: <pre>%error</pre>. %link', array('%error' => print_r($error, TRUE), '%link' => l(t('Lookup Error'), 'http://php.net/errorfunc.constants')));
  }
  if ($drupal_msg != 0) {
    $output .= t(' MESSAGES: %msg', array('%msg' => $drupal_msg));
  }
}

It should give you nicer looking output.

Moving since this is the root issue
#385924: Don't cache pages when there are PHP/MySQL errors