Notice: Trying to get property 'nrodni' of non-object in /home/hostuper/mallascar.hostuperu.com/apimallascar_asdas/trab_empleados/loguear.php on line 9

Notice: Trying to get property 'clave' of non-object in /home/hostuper/mallascar.hostuperu.com/apimallascar_asdas/trab_empleados/loguear.php on line 10
Error al retornarSQLConn (SELECT car.nombre cargo, car.nivel, emp.idempleado, emp.idcargo, emp.nrodni, emp.clave, emp.nombres, emp.apellidos, emp.telefono, emp.estado FROM trab_empleados emp INNER JOIN trab_cargos car ON car.idcargo = emp.idcargo WHERE emp.nrodni = AND emp.vigencia = 1 AND emp.estado = 1;):You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'AND emp.vigencia = 1 AND emp.estado = 1' at line 6