oci_set_client_info

(PHP 5 >= 5.3.2, PHP 7, PHP 8, PECL OCI8 >= 1.4.0)

oci_set_client_infoSets the client information

說明

oci_set_client_info(resource $connection, string $client_info): bool

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.

參數(shù)

connection

Oracle 連接標(biāo)識,由 oci_connect(),oci_pconnect(),或 oci_new_connect() 返回。

client_info

User chosen string up to 64 bytes long.

返回值

成功時返回 true, 或者在失敗時返回 false。

范例

示例 #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;

注釋

注意: Oracle 版本需求

當(dāng) PHP 是與 Oracle 數(shù)據(jù)庫 10g 及更新版本的 擴(kuò)展庫鏈接時,此函數(shù)可用。

小技巧

性能

使用舊版的 OCI8 或 ORACLE 數(shù)據(jù)庫,可使用 Oracle DBMS_APPLICATION_INFO 包來設(shè)置客戶端信息。這比使用 oci_set_client_info() 較低效。

警告

Roundtrip Gotcha

一些 OCI8 函數(shù)會導(dǎo)致 Roundtrips. 對數(shù)據(jù)庫來說當(dāng)啟用結(jié)果緩存時,查詢可能不產(chǎn)生 Roundtrips。

參見