Fatal error: Uncaught Error: Class 'Zend_Ldap_Filter_String' not found in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables\libreria\Zend\Ldap\Filter\Mask.php:38 Stack trace: #0 {main} thrown in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables\libreria\Zend\Ldap\Filter\Mask.php on line 38