Questo è il risultato dell'istruzione: var_dump($username);

object(Login)#4 (6) { ["id"]=> NULL ["username"]=> object(Login)#4 (6) { ["id"]=> NULL ["username"]=> *RECURSION* ["password"]=> NULL ["uvalid"]=> NULL ["dsn"]=> object(DB_mysql)#1 (26) { ["phptype"]=> string(5) "mysql" ["dbsyntax"]=> string(5) "mysql" ["features"]=> array(7) { ["limit"]=> string(5) "alter" ["new_link"]=> string(5) "4.2.0" ["numrows"]=> bool(true) ["pconnect"]=> bool(true) ["prepare"]=> bool(false) ["ssl"]=> bool(false) ["transactions"]=> bool(true) } ["errorcode_map"]=> array(26) { [1004]=> int(-15) [1005]=> int(-15) [1006]=> int(-15) [1007]=> int(-5) [1008]=> int(-17) [1022]=> int(-5) [1044]=> int(-26) [1046]=> int(-14) [1048]=> int(-3) [1049]=> int(-27) [1050]=> int(-5) [1051]=> int(-18) [1054]=> int(-19) [1061]=> int(-5) [1062]=> int(-5) [1064]=> int(-2) [1091]=> int(-4) [1100]=> int(-21) [1136]=> int(-22) [1142]=> int(-26) [1146]=> int(-18) [1216]=> int(-3) [1217]=> int(-3) [1356]=> int(-13) [1451]=> int(-3) [1452]=> int(-3) } ["connection"]=> resource(10) of type (mysql link) ["dsn"]=> array(9) { ["phptype"]=> string(5) "mysql" ["dbsyntax"]=> string(5) "mysql" ["username"]=> string(8) "intranet" ["password"]=> string(8) "rWu23s87" ["protocol"]=> string(3) "tcp" ["hostspec"]=> string(9) "localhost" ["port"]=> bool(false) ["socket"]=> bool(false) ["database"]=> string(13) "Intranet_full" } ["autocommit"]=> bool(true) ["transaction_opcount"]=> int(0) ["_db"]=> string(13) "Intranet_full" ["fetchmode"]=> int(3) ["fetchmode_object_class"]=> string(8) "stdClass" ["was_connected"]=> NULL ["last_query"]=> string(0) "" ["options"]=> array(8) { ["result_buffering"]=> int(500) ["persistent"]=> bool(false) ["ssl"]=> bool(false) ["debug"]=> int(0) ["seqname_format"]=> string(6) "%s_seq" ["autofree"]=> bool(false) ["portability"]=> int(0) ["optimize"]=> string(11) "performance" } ["last_parameters"]=> array(0) { } ["prepare_tokens"]=> array(0) { } ["prepare_types"]=> array(0) { } ["prepared_queries"]=> array(0) { } ["_last_query_manip"]=> bool(false) ["_next_query_manip"]=> bool(false) ["_debug"]=> bool(false) ["_default_error_mode"]=> NULL ["_default_error_options"]=> NULL ["_default_error_handler"]=> string(0) "" ["_error_class"]=> string(8) "DB_Error" ["_expected_errors"]=> array(0) { } } ["cookie"]=> NULL } ["password"]=> NULL ["uvalid"]=> NULL ["dsn"]=> object(DB_mysql)#1 (26) { ["phptype"]=> string(5) "mysql" ["dbsyntax"]=> string(5) "mysql" ["features"]=> array(7) { ["limit"]=> string(5) "alter" ["new_link"]=> string(5) "4.2.0" ["numrows"]=> bool(true) ["pconnect"]=> bool(true) ["prepare"]=> bool(false) ["ssl"]=> bool(false) ["transactions"]=> bool(true) } ["errorcode_map"]=> array(26) { [1004]=> int(-15) [1005]=> int(-15) [1006]=> int(-15) [1007]=> int(-5) [1008]=> int(-17) [1022]=> int(-5) [1044]=> int(-26) [1046]=> int(-14) [1048]=> int(-3) [1049]=> int(-27) [1050]=> int(-5) [1051]=> int(-18) [1054]=> int(-19) [1061]=> int(-5) [1062]=> int(-5) [1064]=> int(-2) [1091]=> int(-4) [1100]=> int(-21) [1136]=> int(-22) [1142]=> int(-26) [1146]=> int(-18) [1216]=> int(-3) [1217]=> int(-3) [1356]=> int(-13) [1451]=> int(-3) [1452]=> int(-3) } ["connection"]=> resource(10) of type (mysql link) ["dsn"]=> array(9) { ["phptype"]=> string(5) "mysql" ["dbsyntax"]=> string(5) "mysql" ["username"]=> string(8) "intranet" ["password"]=> string(8) "rWu23s87" ["protocol"]=> string(3) "tcp" ["hostspec"]=> string(9) "localhost" ["port"]=> bool(false) ["socket"]=> bool(false) ["database"]=> string(13) "Intranet_full" } ["autocommit"]=> bool(true) ["transaction_opcount"]=> int(0) ["_db"]=> string(13) "Intranet_full" ["fetchmode"]=> int(3) ["fetchmode_object_class"]=> string(8) "stdClass" ["was_connected"]=> NULL ["last_query"]=> string(0) "" ["options"]=> array(8) { ["result_buffering"]=> int(500) ["persistent"]=> bool(false) ["ssl"]=> bool(false) ["debug"]=> int(0) ["seqname_format"]=> string(6) "%s_seq" ["autofree"]=> bool(false) ["portability"]=> int(0) ["optimize"]=> string(11) "performance" } ["last_parameters"]=> array(0) { } ["prepare_tokens"]=> array(0) { } ["prepare_types"]=> array(0) { } ["prepared_queries"]=> array(0) { } ["_last_query_manip"]=> bool(false) ["_next_query_manip"]=> bool(false) ["_debug"]=> bool(false) ["_default_error_mode"]=> NULL ["_default_error_options"]=> NULL ["_default_error_handler"]=> string(0) "" ["_error_class"]=> string(8) "DB_Error" ["_expected_errors"]=> array(0) { } } ["cookie"]=> NULL }