   #PHP Manual Oracle 8 functions ocinewdescriptor ocinumcols

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                                   ocinlogon

   (PHP 3>= 3.0.8, PHP 4 )
   ocinlogon -- Establishes a new connection to Oracle

Description

   resource ocinlogon ( string username, string password [, string db])

   ocinlogon() creates a new connection to an Oracle 8 database and logs
   on. The optional third parameter can either contain the name of the
   local Oracle instance or the name of the entry in tnsnames.ora to
   which you want to connect. If the optional third parameter is not
   specified, PHP uses the environment variables ORACLE_SID (Oracle
   instance) or TWO_TASK (tnsnames.ora) to determine which database to
   connect to.

   ocinlogon() forces a new connection. This should be used if you need
   to isolate a set of transactions. By default, connections are shared
   at the page level if using ocilogon() or at the web server process
   level if using ociplogon(). If you have multiple connections open
   using ocinlogon(), all commits and rollbacks apply to the specified
   connection only.

   This example demonstrates how the connections are separated.

   Example 1. ocinlogon() example
   <?php
   echo "<html><pre>";
   $db = "";
   $c1 = ocilogon("scott", "tiger", $db);
   $c2 = ocinlogon("scott", "tiger", $db);
   function create_table($conn) {
     $stmt = ociparse($conn, "create table scott.hallo (test
   varchar2(64))");
     ociexecute($stmt);
     echo $conn . " created table\n\n";
   }
   function drop_table($conn) {
     $stmt = ociparse($conn, "drop table scott.hallo");
     ociexecute($stmt);
     echo $conn . " dropped table\n\n";
   }
   function insert_data($conn) {
     $stmt = ociparse($conn, "insert into scott.hallo
               values('$conn' || ' ' || to_char(sysdate,'DD-MON-YY
   HH24:MI:SS'))");
     ociexecute($stmt, OCI_DEFAULT);
     echo $conn . " inserted hallo\n\n";
   }
   function delete_data($conn) {
     $stmt = ociparse($conn, "delete from scott.hallo");
     ociexecute($stmt, OCI_DEFAULT);
     echo $conn . " deleted hallo\n\n";
   }
   function commit($conn) {
     ocicommit($conn);
     echo $conn . " committed\n\n";
   }
   function rollback($conn) {
     ocirollback($conn);
     echo $conn . " rollback\n\n";
   }
   function select_data($conn) {
     $stmt = ociparse($conn, "select * from scott.hallo");
     ociexecute($stmt, OCI_DEFAULT);
     echo $conn . "----selecting\n\n";
     while (ocifetch($stmt)) {
       echo $conn . " <" . ociresult($stmt, "TEST") . ">\n\n";
     }
     echo $conn . "----done\n\n";
   }
   create_table($c1);
   insert_data($c1);
   select_data($c1);
   select_data($c2);
   rollback($c1);
   select_data($c1);
   select_data($c2);
   insert_data($c2);
   commit($c2);
   select_data($c1);
   delete_data($c1);
   select_data($c1);
   select_data($c2);
   commit($c1);
   select_data($c1);
   select_data($c2);
   drop_table($c1);
   echo "</pre></html>";
   ?>

   See also ocilogon() and ociplogon().
   ______________________________________________________________________

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