Summary of communication methods between PHP programs and servers

Suppose there are 10 websites distributed across regions, their inventory needs to be synchronized, and the database does not support remote connection. To obtain the server inventory in real time, we can use the following methods: · CURL method · SOCKET method · The SOAP method in php5 provides the following examples to implement it: CURL-based client. php <? Php $ shortcode 'nde005 '; $ website suppose there are 10 websites distributed across regions, their inventory needs to be synchronized, and the database does not support remote connection.

To obtain the server inventory in real time, we can use the following methods:

· CURL method

· SOCKET mode

· SOAP method in php5

The following are examples to implement it:

CURL method

Client. php

<? Php
$ Response code = '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 & consumer id =". $ response code.
"& Amt =". $ amt;
Curl_setopt ($ ch, CURLOPT_URL, $ curl_url );
Curl_setopt ($ ch, CURLOPT_POST, 1 );
Curl_setopt ($ ch, CURLOPT_RETURNTRANSFER, 1); // no direct output is returned to the variable
$ Curl_result = curl_exec ($ ch );
$ Result = explode (',', $ curl_result );
Curl_close ($ ch );
PRint_r ($ result );
?>

The server only needs to output the data in a certain format, and then the client can receive the data in this format, for example:

Echo "OK,". $ fpsecode. ",". $ fbalance; // separated by commas

SOCKET mode

The third-party class library HttpClient can be downloaded here: http://scripts.incutio.com/httpclient/

<? Php
Require_once 'class/HttpClient. php ';
$ Params = array ('web' => 'Www .abc.com ',
'Pwd' => '123 ',
'Action' => 'check ',
'Upload ID' => 'nde005 ',
'Amt '=> 1 );
$ PageContents = HttpClient: quickPost ('http: // ics.server.com/index.php', $ params );
$ Result = explode (',', $ pageContents );
Print_r ($ result );
?>

SOAP method in PHP5

Server. php

<? Php
Function getQuote ($ fpsecode ){
Global $ dbh;
$ Result = array ();
Try {
$ Query = "SELECT fprice, fcansale, fbalance, fbaltip FROM tblbalance where upper (trim (fpsecode) =: your code limit 1 ";
$ Stmt = $ dbh-> prepare ($ query );
$ Stmt-> execute (array (': response code' => 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; // you can return an array
}

$ Dsn = 'pgsql: host = 192. 168. *. * port = 5432 dbname = db user = 123456 passWord = 100 ';
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"); // configuration file
$ 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 );
?>