另一种错误的做法是像这样访问它：

$json_object = '{"communications":
                       {"communication":
                         [{"@array":"true","@id":"23101384","@uri":"xyz/v1/Communications/1111","household":
                            {"@id":"111111","@uri":"xyz/v1/Households/5465465"},
                            "person": {"@id":"","@uri":""},
                            "communicationType":{"@id":"1","@uri":"xyz/v1/Communications/CommunicationTypes/1","name":"Home Phone"},
                            "communicationGeneralType":"Telephone","communicationValue":"1111","searchCommunicationValue":"2693240758",
                               "listed":"true","communicationComment":null,"createdDate":"2008-11-10T12:31:26","lastUpdatedDate":"2009-08-11T23:40:02"},
                            {"@array":"true","@id":"11111","@uri":"xyz/v1/Communications/111111111","household":
                              {"@id":"14436295","@uri":"xyz/v1/Households/11111"},
                            "person": {"@id":"2222222","@uri":"xyz/v1/People/22222222"},
                            "communicationType": {"@id":"2","@uri":"xyz/v1/Communications/CommunicationTypes/2","name":"Work Phone"},
                            "communicationGeneralType":"Telephone","communicationValue":"11111","searchCommunicationValue":"789787987","listed":"false",
                                "communicationComment":null,"createdDate":"2009-08-09T15:49:27","lastUpdatedDate":"2009-08-11T23:40:02"},
                            {"@array":"true","@id":"11111","@uri":"xyz/v1/Communications/11111","household": {"@id":"1111","@uri":"xyz/v1/Households/1111"},
                            "person":{"@id":"244404","@uri":"xyz/v1/People/1111"},
                            "communicationType":{"@id":"3","@uri":"xyz/v1/Communications/CommunicationTypes/3","name":"Mobile"},
                            "communicationGeneralType":"Telephone","communicationValue":"22222","searchCommunicationValue":"5475454","listed":"true",
                                "communicationComment":null,"createdDate":"2008-11-10T12:31:26","lastUpdatedDate":"2009-08-11T23:40:02"},
                            {"@array":"true","@id":"15454","@uri":"xyz/v1/Communications/111111","household":{"@id":"14436295","@uri":"xyz/v1/Households/1111"},
                            "person":{"@id":"244444474","@uri":"xyz/v1/People/111111"},
                            "communicationType":{"@id":"4","@uri":"xyz/v1/Communications/CommunicationTypes/4","name":"Email"},
                            "communicationGeneralType":"Email","communicationValue":"email@needthis.com","searchCommunicationValue":"email@needthis.com","listed":"true",
                            "communicationComment":null,"createdDate":"2008-11-10T12:31:26","lastUpdatedDate":"2009-08-11T23:39:06"}
                         ]
                       }
                      }';


    $json_decoded = json_decode($json_object);
    echo "email: ".$json_decoded->communications->communication[3]->communicationValue."<br />";