假設有10個網站，分布在各地，它們的庫存要同步，而數據庫不支持遠程連接。

我們要實時地取得服務器的庫存數，可以通過很多種方法，我所知道的有以下幾種：

　·CURL方式

　·SOCKET方式

　·PHP5中的SOAP方式

以下分別給出示例來實現它：

CURL方式

client.php

＜?php$psecode = ’NDE005’;$website = ’www.abc.com’;$amt = 1;$pwd = 123456;$ch = curl_init();$curl_url = 'http://ics1.server.com/index.php?web=' . $website . '&pwd=' . $pwd . '&action=check&pseid=' . $psecode . '&amt=' . $amt;curl_setopt($ch, CURLOPT_URL, $curl_url);curl_setopt($ch, CURLOPT_POST, 1);curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);//不直接輸出，返回到變量$curl_result = curl_exec($ch);$result = explode(’,’, $curl_result);curl_close($ch);print_r($result);?＞

服務器端只需按一定的格式輸出，然后客戶端按此格式接收就可以了如：

echo 'OK,' . $fpsecode . ',' . $fbalance ;//以逗號分隔

SOCKET方式

這個要借助第三方類庫HttpClient,可以到這里下載：http://scripts.incutio.com/httpclient/

＜?phprequire_once ’class/HttpClient.php’;$params = array(’web’ =＞ ’www.abc.com’,’pwd’ =＞ ’123456’,’action’ =＞ ’check’,’pseid’ =＞ ’NDE005’,’amt’ =＞ 1);$pageContents = HttpClient::quickPost(’http://ics.server.com/index.php’, $params);$result = explode(’,’, $pageContents);print_r($result);?＞

PHP5中的SOAP方式

server.php

＜?php function getQuote($fpsecode) { global $dbh;$result = array();try {$query = 'SELECT fprice, fcansale, fbalance, fbaltip FROM tblbalance where upper(trim(fpsecode)) = :psecode limit 1';$stmt = $dbh-＞prepare($query);$stmt-＞execute(array(’:psecode’ =＞ strtoupper(trim($fpsecode))));$stmt-＞bindColumn(’fprice’, $fprice);$stmt-＞bindColumn(’fcansale’, $fcansale);$stmt-＞bindColumn(’fbalance’, $fbalance);$stmt-＞bindColumn(’fbaltip’, $fbaltip);while($row = $stmt-＞fetch(PDO_FETCH_BOUND)) {//}} catch (PDOException $e) {echo $e-＞getMessage();}return $fprice; //你可以返回一個數組}

$dsn = ’pgsql:host=192.168.*.* port=5432 dbname=db user=123456 password=123456’;try {$dbh = new PDO($dsn);} catch (PDOException $e) {die(’Connection failed: ’ . $e-＞getMessage()); }ini_set('soap.wsdl_cache_enabled', '0'); // disabling WSDL cache $server = new SoapServer('stockquote.wsdl'); //配置文件$server-＞addFunction('getQuote'); $server-＞handle(); ?＞

stockquote.wsdl

＜?xml version =’1.0’ encoding =’UTF-8’ ?＞ ＜definitions name=’StockQuote’ targetNamespace=’http://example.org/StockQuote’ xmlns:tns=’ http://example.org/StockQuote ’ xmlns:soap=’http://schemas.xmlsoap.org/wsdl/soap/’ xmlns:xsd=’http://www.w3.org/2001/XMLSchema’ xmlns:soapenc=’http://schemas.xmlsoap.org/soap/encoding/’ xmlns:wsdl=’http://schemas.xmlsoap.org/wsdl/’ xmlns=’http://schemas.xmlsoap.org/wsdl/’＞

＜message name=’getQuoteRequest’＞ ＜part name=’symbol’ type=’xsd:string’/＞ ＜/message＞ ＜message name=’getQuoteResponse’＞ ＜part name=’Result’ type=’xsd:float’/＞ ＜/message＞

＜portType name=’StockQuotePortType’＞ ＜operation name=’getQuote’＞ ＜input message=’tns:getQuoteRequest’/＞ ＜output message=’tns:getQuoteResponse’/＞ ＜/operation＞ ＜/portType＞

＜binding name=’StockQuoteBinding’ type=’tns:StockQuotePortType’＞ ＜soap:binding style=’rpc’ transport=’http://schemas.xmlsoap.org/soap/http’/＞ ＜operation name=’getQuote’＞ ＜soap:operation soapAction=’urn:xmethods-delayed-quotes#getQuote’/＞ ＜input＞ ＜soap:body use=’encoded’ namespace=’urn:xmethods-delayed-quotes’ encodingStyle=’http://schemas.xmlsoap.org/soap/encoding/’/＞ ＜/input＞ ＜output＞ ＜soap:body use=’encoded’ namespace=’urn:xmethods-delayed-quotes’ encodingStyle=’http://schemas.xmlsoap.org/soap/encoding/’/＞ ＜/output＞ ＜/operation＞ ＜/binding＞

＜service name=’StockQuoteService’＞ ＜port name=’StockQuotePort’ binding=’StockQuoteBinding’＞ ＜soap:address location=’http://192.168.3.9/php5/server.php’/＞ ＜/port＞ ＜/service＞ ＜/definitions＞

client.php

＜?php $client = new SoapClient('stockquote.wsdl'); $result = $client-＞getQuote('nde005'); print_r($result);?＞