I have an error when trying to access another instance of pyra through
a database link

PHP is built with Oracle 8.0.5 for Linux connected to
Oracle 7.3.4

There is no php3.ini

./configure \
	--with-apache=/home/web/apache_1.3.9 \
	--with-oracle=/home/oracle \
	--with-zlib \
	--enable-sysvshm=yes \
	--enable-sysvsem=yes \
	--with-config-file-path=/etc \
	--with-system-regex=yes \
	--with-exec-dir=/home/web/php-bin \
	--enable-track-vars=yes \
	--enable-bcmath=yes \
	--enable-memory-limit=yes

pyra is a public database link, this select is working on sqlplus.

<?PHP
        $conn = ora_logon("catalog/xxxx@xbpc_bpc","xxxx");
        ora_commitoff($conn);
        $curs = ora_open($conn);

        $err = ora_parse($curs, "SELECT * from artic@pyra");
?> 

Warning: Ora_Parse failed (ORA-02248: invalid option for ALTER SESSION ORA-02063: preceding line from PYRA -- while processing OCI
function OPARSE) in /bpc/intra.bpcbs.com/seb/oracle/bug.php3 on line 6

Using a synonym or view of the remote table doesn't solve this error.