1、下載instantclient_12_1，php與ORACLE的動態鏈接庫。地址：http://www.oracle.com/technetwork/topics/winsoft-085727.html

選擇最新版下載即可。

2、下載后解壓到d:\app\instantclient_12_1

3、在環境變量PATH中添加d:\app\instantclient_12_1

4、修改php.ini配置文件，oracle8去掉extension=php_oci8.dll 上面分號，oracle11g去掉 extension=php_oci8_11g.dll前面分號,重啟WEB服務器。

5、以下是測試用的PHP內容。如果采用oracle默認安裝，則字符集為：ZHS16GBK，所以PHP文件保存時采用gbk或ansi編碼保存文件，否則會出現中文亂碼。

putenv("NLS_LANG=SIMPLIFIED CHINESE_CHINA.ZHS16GBK");

$c1 = oci_connect("用戶名", "密碼", '//localhost:1521/orcl');
function create_table($conn)
{
	$stmt = oci_parse($conn, "create table czehr.hallo (test varchar2(64))");
	oci_execute($stmt);
	echo $conn . " created table ";
}


function select_data($conn)
{
	$stmt = oci_parse($conn, "select * from czehr.hallo");
	oci_execute($stmt, OCI_DEFAULT);
	echo $conn."----selecting ";
	while (oci_fetch($stmt)) {
		echo $conn . " [" . oci_result($stmt, "TEST") . "] ";
	}
	echo $conn . "----done ";
}
function insert_data($conn)
{
	putenv("NLS_LANG=SIMPLIFIED CHINESE_CHINA.ZHS16GBK");
	$stmt = oci_parse($conn, "INSERT INTO CZEHR.HALLO (TEST) VALUES ('山西中聯科創科技有限公司')");
	oci_execute($stmt, OCI_DEFAULT);
	echo $conn . " inserted hallo ";
}

function commit($conn)
{
	oci_commit($conn);
	echo $conn . " committed ";
}

function rollback($conn)
{
	oci_rollback($conn);
	echo $conn . " rollback ";
}

create_table($c1);
insert_data($c1);   // Insert a row using c2
commit($c1);        // Commit using c2
select_data($c1);

顯示成功，則表示鏈接正常。