php4 can't find tnsnames.ora oracle9 but can connect if description hardcoded

["neil smith" <neil989@xxxxxxxxxxx>]

Hello,

I have test script that can connect to the oracle database. It doesn't 
require tnsnames.ora because I define the database alias in the script 
itself. It looks like this:



echo "TWO_TASK=".getenv("TWO_TASK")."<br>";
echo "LD_LIBRARY_PATH=".getenv("LD_LIBRARY_PATH")."<br>";
echo "ORACLE_BASE=".getenv("ORACLE_BASE")."<BR>";
echo "ORACLE_HOME=".getenv("ORACLE_HOME")."<BR>";
echo "TNS_ADMIN=".getenv("TNS_ADMIN")."<BR>";
echo "NLS_LANG=".getenv("NLS_LANG").".<br>";

# this allows a successful connection

$db = "  (DESCRIPTION =
 (ADDRESS = (PROTOCOL = TCP) (HOST =testdb.boo.com)(PORT = 1521))
 (CONNECT_DATA= (SID = testdb))
 )";

// these don't work.. php can't seem to find tnsnames.ora
# $db = "testdb.boo.com";
//$db = "testdb.boo.com";
# $db = "testdb";
//echo $testdb;


$odbc = OCILogon("test/test","test",$db);

if ($odbc == false){
  $msg = OCIError($odbc)."<BR>";
} else {
echo "success!!!<br>";
}



My problem is is that when I try to use the database alias in tnsnames.ora I 
get an ora-12154 error. I get this despite the facts that oracle_home, 
tns_admin and everything else is defined in the script and the tnsnames.ora 
contains exactly the same alias as I use in the hardcoded version (see the 
uncommented $db above).
sqlnet.ora contains a value name_domain that apparently is appended to the 
alias in tnsnames.ora but accounting for this still doesn't let me connect 
to oracle . It's as if tnsnames.ora cannot be found. I've changed the 
permissions to 777 for the whole directory structure and I can successfully 
use tnsnames.ora with sqlplus or tnsping.

Does anybody have any ideas what is going wrong? Is this a bug?

thanks,

neil

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