PHP程序与服务器端通讯方法小结

假设有10个网站，分布在各地，它们的库存要同步，而数据库不支持远程连接。

　　我们要实时地取得服务器的库存数，可以通过很多种方法，我所知道的有以下几种：

　　　·CURL方式

　　　·SOCKET方式

　　　·PHP5中的SOAP方式

　　以下分别给出示例来实现它：

　　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);//不直接输出，返回到变量 $curl_result = curl_exec($ch); $result = explode(’,’, $curl_result); curl_close($ch); print_r($result); ?＞

　　服务器端只需按一定的格式输出，然后客户端按此格式接收就可以了如：

echo "OK," . $fpsecode . "," . $fbalance ;//以逗号分隔

　　SOCKET方式

　　这个要借助第三方类库HttpClient,可以到这里下载：http://scripts.incutio.com/httpclient/

＜?php require_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; //你可以返回一个数组 } $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); ?＞

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