PHP连接Oralce出现：tns: no listener

[fhvsbgmy]

我用的是Oracle10g的client端，
连接远程计算机168.1.1.3:1521/SMTRT

使用client的企业管理器以及sqlplus: smtuser/smtadm@SMTRT

都能正常连接上Oracle


但是使用PHP的adodb连接就出现问题：tns:no listener.

如果使用$conn = OCINLogon("smtuser", "smtadm","168.1.1.3:1521/SMTRT");
就出现：ORA-12737: Instant Client Light: unsupported server character set %s

如果使用$conn = OCINLogon("smtuser", "smtadm","168.1.1.3:1521/SMTRT","ZHS16GBK");
就会出现：
OCIEnvNlsCreate() failed. There is something wrong with your system - please check that PATH includes the directory with Oracle Instant Client libraries

注：环境为：ZendServer5.0 （apache2.13，php5.30）

[fhvsbgmy]

oci8
OCI8 Support enabled
Version 1.3.5
Revision $Revision: 1.269.2.16.2.38.2.32 $
Active Persistent Connections 0
Active Connections 0
Temporary Lob support enabled
Collections support enabled

Directive Local Value Master Value
oci8.connection_class no value no value
oci8.default_prefetch 100 100
oci8.events Off Off
oci8.max_persistent -1 -1
oci8.old_oci_close_semantics On On
oci8.persistent_timeout 60 60
oci8.ping_interval 60 60
oci8.privileged_connect On On
oci8.statement_cache_size 20 20