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[ticket/11015] Fix 3.0 to 3.1 dbms conversion for mysqli.

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PHPBB3-11015
This commit is contained in:
Oleg Pudeyev
2012-12-13 19:07:49 -05:00
parent 1a1ae1b663
commit 9e3fd3bf8e
2 changed files with 61 additions and 5 deletions
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26
phpBB/includes/functions.php
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@@ -5550,22 +5550,38 @@ function phpbb_to_numeric($input)
}
/**
* Convert 3.0 dbms to 3.1 db driver class name
* Convert either 3.0 dbms or 3.1 db driver class name to 3.1 db driver class name.
*
* If $dbms is a valid 3.1 db driver class name, returns it unchanged.
* Otherwise prepends phpbb_db_driver_ to the dbms to convert a 3.0 dbms
* to 3.1 db driver class name.
*
* @param string $dbms dbms parameter
* @return db driver class
*/
function phpbb_convert_30_dbms_to_31($dbms)
{
// Note: this check is done first because mysqli extension
// supplies a mysqli class, and class_exists($dbms) would return
// true for mysqli class.
// However, per the docblock any valid 3.1 driver name should be
// recognized by this function, and have priority over 3.0 dbms.
if (class_exists('phpbb_db_driver_' . $dbms))
{
return 'phpbb_db_driver_' . $dbms;
}
if (class_exists($dbms))
{
return $dbms;
}
if (class_exists('phpbb_db_driver_' . $dbms))
{
return 'phpbb_db_driver_' . $dbms;
}
// Additionally we could check that $dbms extends phpbb_db_driver.
// http://php.net/manual/en/class.reflectionclass.php
// Beware of possible performance issues:
// http://stackoverflow.com/questions/294582/php-5-reflection-api-performance
// We could check for interface implementation in all paths or
// only when we do not prepend phpbb_db_driver_.
throw new \RuntimeException("You have specified an invalid dbms driver: $dbms");
}