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);
?＞