oci_connect(): Error while trying to retrieve text for error ORA-12154

User_9PCZ2

Hi All

I am trying to make a oracle connection and am getting the below error. Am using easy connect string

oci_connect(): Error while trying to retrieve text for error ORA-12154

and tried to change the connection as mentioned in the forum as '//host:port/service_name'

then the error code changes and give : oci_connect(): Error while trying to retrieve text for error ORA-28547.

I have set the environment variables ORACLE_HOME, LD_LIBRARY_PATH AND TNS_ADMIN.

Please Help!!!!!!