微信公众平台消息接口开发（13）多语种互译

<?php

class AccessTokenAuthentication {
/*
* Get the access token.
*
* @param string $grantType    Grant type.
* @param string $scopeUrl     Application Scope URL.
* @param string $clientID     Application client ID.
* @param string $clientSecret Application client ID.
* @param string $authUrl      Oauth Url.
*
* @return string.
*/
function getTokens($grantType, $scopeUrl, $clientID, $clientSecret, $authUrl){
try {
//Initialize the Curl Session.
$ch = curl_init();
//Create the request Array.
$paramArr = array (
'grant_type'    => $grantType,
'scope'         => $scopeUrl,
'client_id'     => $clientID,
'client_secret' => $clientSecret
);
//Create an Http Query.//
$paramArr = http_build_query($paramArr);
//Set the Curl URL.
curl_setopt($ch, CURLOPT_URL, $authUrl);
//Set HTTP POST Request.
curl_setopt($ch, CURLOPT_POST, TRUE);
//Set data to POST in HTTP "POST" Operation.
curl_setopt($ch, CURLOPT_POSTFIELDS, $paramArr);
//CURLOPT_RETURNTRANSFER- TRUE to return the transfer as a string of the return value of curl_exec().
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, TRUE);
//CURLOPT_SSL_VERIFYPEER- Set FALSE to stop cURL from verifying the peer's certificate.
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
//Execute the  cURL session.
$strResponse = curl_exec($ch);
//Get the Error Code returned by Curl.
$curlErrno = curl_errno($ch);
if($curlErrno){
$curlError = curl_error($ch);
throw new Exception($curlError);
}
//Close the Curl Session.
curl_close($ch);
//Decode the returned JSON string.
$objResponse = json_decode($strResponse);
if ($objResponse->error){
throw new Exception($objResponse->error_description);
}
return $objResponse->access_token;
} catch (Exception $e) {
echo "Exception-".$e->getMessage();
}
}
}

/*
* Class:HTTPTranslator
*
* Processing the translator request.
*/
Class HTTPTranslator {
/*
* Create and execute the HTTP CURL request.
*
* @param string $url        HTTP Url.
* @param string $authHeader Authorization Header string.
*
* @return string.
*
*/
function curlRequest($url, $authHeader){
//Initialize the Curl Session.
$ch = curl_init();
//Set the Curl url.
curl_setopt ($ch, CURLOPT_URL, $url);
//Set the HTTP HEADER Fields.
curl_setopt ($ch, CURLOPT_HTTPHEADER, array($authHeader));
//CURLOPT_RETURNTRANSFER- TRUE to return the transfer as a string of the return value of curl_exec().
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, TRUE);
//CURLOPT_SSL_VERIFYPEER- Set FALSE to stop cURL from verifying the peer's certificate.
curl_setopt ($ch, CURLOPT_SSL_VERIFYPEER, False);
//Execute the  cURL session.
$curlResponse = curl_exec($ch);
//Get the Error Code returned by Curl.
$curlErrno = curl_errno($ch);
if ($curlErrno) {
$curlError = curl_error($ch);
throw new Exception($curlError);
}
//Close a cURL session.
curl_close($ch);
return $curlResponse;
}
}

try {
//Client ID of the application.
$clientID       = "clientId";
//Client Secret key of the application.
$clientSecret = "ClientSecret";
//OAuth Url.
$authUrl      = "https://datamarket.accesscontrol.windows.net/v2/OAuth2-13/";
//Application Scope Url
$scopeUrl     = "http://api.microsofttranslator.com";
//Application grant type
$grantType    = "client_credentials";

//Create the AccessTokenAuthentication object.
$authObj      = new AccessTokenAuthentication();
//Get the Access token.
$accessToken  = $authObj->getTokens($grantType, $scopeUrl, $clientID, $clientSecret, $authUrl);
//Create the authorization Header string.
$authHeader = "Authorization: Bearer ". $accessToken;

//Set the params.
$sentence      = "rephrasing is a hard problem for the computer.";
$language      = "en-us";
$category        = "general";
$maxParaphrase = '6';

$params = "sentence=".urlencode($sentence)."&language=$language&category=$category&maxParaphrases=$maxParaphrase";

//HTTP paraphrase URL.
$paraphraseUrl = "http://api.microsofttranslator.com/v3/json/paraphrase?$params";

//Create the Translator Object.
$translatorObj = new HTTPTranslator();

//Call the curlRequest.
echo $curlResponse = $translatorObj->curlRequest($paraphraseUrl, $authHeader);

} catch (Exception $e) {
echo "Exception: " . $e->getMessage() . PHP_EOL;
}

/*
* Create and execute the HTTP CURL request.
*
* @param string $url        HTTP Url.
* @param string $authHeader Authorization Header string.
* @param string $postData   Data to post.
*
* @return string.
*
*/
function curlRequest($url, $authHeader) {
//Initialize the Curl Session.
$ch = curl_init();
//Set the Curl url.
curl_setopt ($ch, CURLOPT_URL, $url);
//Set the HTTP HEADER Fields.
curl_setopt ($ch, CURLOPT_HTTPHEADER, array($authHeader,"Content-Type: text/xml"));
//CURLOPT_RETURNTRANSFER- TRUE to return the transfer as a string of the return value of curl_exec().
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, TRUE);
//CURLOPT_SSL_VERIFYPEER- Set FALSE to stop cURL from verifying the peer's certificate.
curl_setopt ($ch, CURLOPT_SSL_VERIFYPEER, False);
//Execute the  cURL session.
$curlResponse = curl_exec($ch);
//Get the Error Code returned by Curl.
$curlErrno = curl_errno($ch);
if ($curlErrno) {
$curlError = curl_error($ch);
throw new Exception($curlError);
}
//Close a cURL session.
curl_close($ch);
return $curlResponse;
}