Description

bool oci_set_client_info(resource $connection, string $client_info)

Sets the client information for Oracle tracing.

The client information is registered with the database when the next 'round-trip' from PHP to the database occurs, typically when an SQL statement is executed.

The client information can subsequently be queried from database administration views such as V$SESSION.

The value may be retained across persistent connections.

Parameters

connection: An Oracle connection identifier, returned by oci_connect, oci_pconnect, or oci_new_connect.
client_info: User chosen string up to 64 bytes long.

Return Values

Returns true on success or false on failure.

Examples

Example #1 Setting the client information

<?php

$c = oci_connect('hr', 'welcome', 'localhost/XE');

// Record the client information
oci_set_client_info($c, 'My Application Version 2');

// Code that causes a round-trip, for example a query:
$s = oci_parse($c, 'select * from dual');
oci_execute($s);
oci_fetch_all($s, $res);

sleep(30);

?>

// While the script is running, the administrator can see the client
// information:

sqlplus system/welcome
SQL> select client_info from v$session;

Notes

Note: Oracle version requirement

This function is available when PHP is linked with Oracle Database libraries from version 10g onwards.

Tip

Performance

With older versions of OCI8 or the Oracle Database, the client information can be set using the Oracle DBMS_APPLICATION_INFO package. This is less efficient than using oci_set_client_info.

Caution

Round-trip Gotcha

Some but not all OCI8 functions cause round-trips. Round-trips to the database may not occur with queries when result caching is enabled.