《PHP如何調(diào)用百度AI開放平臺(tái)中NLP語言處理基礎(chǔ)技術(shù)的“依存句法分析”等接口？》要點(diǎn)：
本文介紹了PHP如何調(diào)用百度AI開放平臺(tái)中NLP語言處理基礎(chǔ)技術(shù)的“依存句法分析”等接口？，希望對您有用。如果有疑問，可以聯(lián)系我們。
相關(guān)主題：PHP開發(fā)
在百度AI開放平臺(tái)中，PHP如何調(diào)用NLP語言處理基礎(chǔ)技術(shù)等接口？
有兩種模式：
一種是使用百度的SDK，參http://ai.baidu.com/docs#/NLP-PHP-SDK/fddb1eac
一種是使用自己封裝的PHP類，參http://ai.baidu.com/docs#/NLP-API/top
本例展示了使用自己封裝的PHP類調(diào)用百度NLP的句法依存關(guān)系接口：
/**
* Class baiduapi 不使用
* 作者：www.snjht.com
*/
class baiduapi
{
public $error ='';
public $apiUrl = '';
private $_errnum=1;
private $header = ["Content-Type: application/json"];
public $access_token='';
//以下這些需要換成你自己的。
public $appId1 = '2321332';
public $appKey1 = 'WLsd3232bI1j7ve3rnCNHIf'; //換成你的APP KEYA
public $appSecretKey1 = 'f8w4g123asdfjwP0AExcYFh17PhLjYt1'; //換成你的
public $tokenApi = 'https://aip.baidubce.com/oauth/2.0/token';
public $grant_type = 'client_credentials';
//緩存文件路徑
public $cacheFile = WEBROOT.'public/uploads/modules/tmp';
/**
* http constructor.
*/
public function __construct ()
{
if(!is_dir ($this->cacheFile)) @mkdir ($this->cacheFile);
$this->cacheFile = $this->cacheFile.'/baiduapi_token_cache.txt';
$this->access_token = $this->getAccessToken ();
}
/**
* 依存句法分析接口
* @param $mode 默認(rèn)值為0，可選值mode=0（對應(yīng)web模型,適用于處理網(wǎng)頁文本等書面表達(dá)句子）；mode=1（對應(yīng)query模型,適用于處理信息需求類的搜索或口語query）
*/
public function textDependParse($text='', $mode =0)
{
$this->apiUrl = 'https://aip.baidubce.com/rpc/2.0/nlp/v1/depparser?charset=UTF-8&access_token='.$this->access_token;
$post = ['text'=>$text, 'mode'=>$mode]; // mb_convert_encoding(json_encode($text), 'GBK', 'UTF8')
$post = json_encode ($post); #關(guān)鍵
$re = $this->getBaiduApi($this->apiUrl, $post , $this->header);
return $re;
}
/** 獲取百度API接口返回值：
* @param $url API地址，如拼音調(diào)用，
* @param string $auth 你在百度的apiKey
* @return mixed 成功則返回std對象
*/
public function getBaiduApi($url='', $postData='', $headers=[])
{
if(empty($url)) return false;
$ch = curl_init ();
curl_setopt ( $ch, CURLOPT_URL, $url );
#["apikey: $apiKeyAuth"]
if(!empty($headers)) curl_setopt ( $ch, CURLOPT_HTTPHEADER, $headers );
curl_setopt ( $ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_TIMEOUT, 10); //cURL允許執(zhí)行的最長秒數(shù)。這里設(shè)定10S
curl_setopt($ch, CURLOPT_FOLLOWLOCATION,1);
curl_setopt ( $ch, CURLOPT_RETURNTRANSFER, 1 );
#curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
#curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt ( $ch, CURLOPT_POST, empty($postData)?0:1 ); //POST則設(shè)置為1
if(!empty($postData) ){
if( is_array ($postData)) $postData = http_build_query($postData);
curl_setopt ( $ch, CURLOPT_POSTFIELDS, $postData ); //POST方式再啟用
}
$result = curl_exec ( $ch );
curl_close ( $ch );
$result = json_decode($result);
if( $this-> _errorParse($result))
{
if(($result->error_code=='111' || $result->error_code=='110') && $this->_errnum++==1) //Access token過期，重新請求一次
{
if(file_exists ($this->cacheFile)) @unlink ($this->cacheFile);
$newAccessToken = $this->getAccessToken ();
$this->apiUrl = str_replace ($this->access_token,$newAccessToken,$this->apiUrl);
$url = str_replace ($this->access_token,$newAccessToken, $url);
$this->access_token =$newAccessToken;
unset($newAccessToken);
$result = $this->getBaiduApi($url, $postData, $headers);
}else{
return false;
}
}
return $result;
}
/** 獲取 access token
* @return mixed
*/
public function getAccessToken()
{
$cacheFile = file_exists ($this->cacheFile) ? file_get_contents ($this->cacheFile) : '';
if(!empty($cacheFile))
{
$json = json_decode ($cacheFile);
if( (time ()-$json->starttime) < ($json->expires_in-100) ) return $json->access_token; #2592000
}
$post_data['grant_type'] = $this->grant_type;
$post_data['client_id'] = $this->appKey1;
$post_data['client_secret'] = $this->appSecretKey1;
$paraStr = "";
foreach ( $post_data as $k => $v ) {
$paraStr .= "$k=" . urlencode( $v ). "&" ;
}
$paraStr = substr($paraStr ,0,-1);
$this->apiUrl = 'https://aip.baidubce.com/oauth/2.0/token';
$this->apiUrl .='?'.$paraStr;
#$url = 'https://aip.baidubce.com/oauth/2.0/token?grant_type=client_credentials&client_id=WL3EGcTOnbI1j7ve3rnCNHIf&client_secret=f8w4gG5GdLLMjwP0AExcYFh17PhLjYt1';
$res = $this->getBaiduApi($this->apiUrl);
if(!empty($this->error)){
return false;
}
$res->starttime = time ();
file_put_contents ($this->cacheFile ,json_encode ($res, true));
return $res->access_token;
}
private function _errorParse($res)
{
$errors=[
'1'=> 'Unknown error 服務(wù)器內(nèi)部錯(cuò)誤，請?jiān)俅握埱螅绻掷m(xù)出現(xiàn)此類錯(cuò)誤，請通過QQ群（224994340）或工單聯(lián)系技術(shù)支持團(tuán)隊(duì)',
'2'=>'Service temporarily unavailable 服務(wù)暫不可用，請?jiān)俅握埱螅绻掷m(xù)出現(xiàn)此類錯(cuò)誤，請通過QQ群（224994340）或工單聯(lián)系技術(shù)支持團(tuán)隊(duì)',
'3'=>'Unsupported openapi method 調(diào)用的API不存在，請檢查后重新嘗試',
'4'=>'Open api request limit reached 集群超限額',
'6'=>'No permission to access data 無權(quán)限訪問該用戶數(shù)據(jù)',
'17'=>'Open api daily request limit reached 每天請求量超限額',
'18'=>'Open api qps request limit reached QPS超限額',
'19'=>'Open api total request limit reached 請求總量超限額',
'100'=>'Invalid parameter 包含了無效或錯(cuò)誤參數(shù)，請檢查代碼',
'110'=>'Access token invalid or no longer valid: Access Token失效',
'111'=>'Access token expired: Access token過期',
'282000'=>'internal error 服務(wù)器內(nèi)部錯(cuò)誤，請?jiān)俅握埱螅?nbsp;如果持續(xù)出現(xiàn)此類錯(cuò)誤，請通過QQ群（632426386）或工單聯(lián)系技術(shù)支持團(tuán)隊(duì)。',
'282002'=>'input encoding error 編碼錯(cuò)誤，請使用GBK編碼',
'282004'=>'invalid parameter(s) 請求中包含非法參數(shù)，請檢查后重新嘗試',
'282130'=>'no result 當(dāng)前查詢無結(jié)果返回，出現(xiàn)此問題的原因一般為：參數(shù)配置存在問題，請檢查后重新嘗試',
'282131'=>'input text too long 輸入長度超限，請查看文檔說明',
'282133'=>'param {參數(shù)名} not exist 接口參數(shù)缺失',
'282300'=>'word error: word不在算法詞典中',
'282301'=>'word_1 error word_1 提交的詞匯暫未收錄，無法比對相似度',
'282302'=>'word_2 error: word_2 提交的詞匯暫未收錄，無法比對相似度',
'282303'=>'word_1&word_2 error : word_1和word_2暫未收錄，無法比對相似度',
];
$this->error = '';
if (!empty($res->error_code) && !empty($errors[$res->error_code]))
{
$this->error = $errors[$res->error_code];
}
return !empty($this->error) ? $this->error : false;
}
}調(diào)用示例：
$re = $baidu->textDependParse('3D滾輪瘦臉儀微電流V臉神器臉部按摩器提拉緊致面部按摩儀美容儀');
if(!$re) echo $baidu->error;
else print_r ($re);
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