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ocilogon — Connect to an Oracle database and log on.


int ocilogon(user, pass[, db]);
string user: Username
string pass: Password
string db (optional): Database name


Connection identifier


Connects to an Oracle database. The db parameter can either contain the Oracle database SID or the name of the database as defined in tnsnames.ora. If db is not defined, ocilogon() will use the either the ORACLE_SID or TWO_TASK environment variable. The TWO_TASK will always override the value in ORACLE_SID.

All connections using ocilogon() are shared at page level, this means that even if two seperate connections are created in a script, a commit or rollback on either connection will also cause the other connection so also commit or rollback.


Since versions 3.0.4 and 4.0


Example 865. Establish a connection

if (!$db = @ocilogon("dev","dev", "ORCL")) {
    $error = ocierror();
    printf("There was an error connecting. Error was: %s", $error["message"]);

$stmt = ociparse($db,"SELECT * FROM phone_numbers");

PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing (Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch). This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, v1.0 or later (the latest version is presently available at The authors of this book have elected not to choose any options under the OPL. This online book was obtained from and is designed to provide information about the PHP programming language, focusing on PHP version 4.0.4 for the most part. The information is provided on an as-is basis, and no warranty or fitness is implied. All persons and entities shall have neither liability nor responsibility to any person or entity with respect to any loss or damage arising from the information contained in this book.

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