Compatibility
CakePHP and PEAR
Currently I don't since there is any major compatibility problems between CakePHP and PEAR, since there is an enum variable "PEAR" in file "paths.php" in CakePHP (See "paths.php File Reference").
But the Coding Standards compatibility problem might exist between CakePHP and PEAR.
References: * Integrating Pear Pager * Integrating CakePHP with PEAR:Auth