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用plsql可以连接oracle但是用OCILogon连接不下oracle

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Release: 2016-06-13 13:13:29
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用plsql可以连接oracle但是用OCILogon连接不上oracle
我以前连接的时候用这段程序可以连接,但是现在连接不上了,一直不知道是什么原因.望大神赐教,源码如下.只修改了正确的IP地址,因为涉及到数据库安全,请各位帮我看看是这段代码有错吗?
代码:
$dbconn=OCILogon("zdext","zd#0228ea2l","(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=*******)(PORT = 1521))(CONNECT_DATA =(SID=ORCL)))") or die('连接数据库失败');

总是连接数据库失败,但是我用plsql去连接的时候就成功了,费解!

------解决方案--------------------
print_r(oci_error());
为什么总是喜好自己处理错误!

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