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<?php |
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namespace Lifeboat\Utils; |
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use Lifeboat\CurlResponse; |
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use Lifeboat\Exceptions\InvalidArgumentException; |
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use Lifeboat\Utils\URL; |
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use LogicException; |
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/** |
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* Class Curl |
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* @package Lifeboat |
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*/ |
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class Curl { |
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const ALLOWED_METHODS = ['GET', 'POST', 'DELETE', 'PUT']; |
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const USER_AGENT = 'LifeboatSDK/curl-service'; |
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private static $_cache = []; |
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private $_method = 'GET'; |
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private $_url = ''; |
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private $_data = []; |
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private $_isfile = false; |
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private $_headers = [ |
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'Content-Type' => 'application/x-www-form-urlencoded', |
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'X-Requested-By' => self::USER_AGENT |
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]; |
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private $_enable_cache = false; |
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/** |
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* Curl constructor. |
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* |
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* @param string $url |
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* @param array $data |
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* @param array $headers |
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* |
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* @throws LogicException |
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*/ |
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public function __construct(string $url = null, array $data = [], array $headers = []) |
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{ |
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if (!is_null($url)) $this->setURL($url); |
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foreach ($data as $name => $value) $this->addDataParam($name, $value); |
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foreach ($headers as $name => $value) $this->addHeader($name, $value); |
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} |
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/** |
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* @param string $url |
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* @return Curl |
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*/ |
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public function setURL(string $url): Curl |
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{ |
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$this->_url = $url; |
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return $this; |
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} |
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/** |
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* @return string |
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*/ |
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public function getURL(): string |
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{ |
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return $this->_url; |
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} |
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/** |
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* @param string $method |
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* @return $this |
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* @throws InvalidArgumentException If $method specified is invalid |
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*/ |
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public function setMethod(string $method = 'GET'): Curl |
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{ |
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if (!in_array($method, self::ALLOWED_METHODS)) { |
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throw new InvalidArgumentException("HTTP Method '{$method}' is not allowed"); |
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} |
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$this->_method = $method; |
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return $this; |
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} |
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/** |
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* @return string |
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*/ |
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public function getMethod(): string |
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{ |
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return $this->_method; |
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} |
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/** |
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* @param string $name |
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* @param mixed $value |
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* @return $this |
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*/ |
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public function addDataParam(string $name, $value): Curl |
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{ |
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$this->_data[$name] = $value; |
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return $this; |
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} |
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public function removeDataParam(string $name): Curl |
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{ |
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if (array_key_exists($name, $this->_data)) unset($this->_data[$name]); |
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return $this; |
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} |
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/** |
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* @return array |
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*/ |
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public function getDataParams(): array |
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{ |
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return $this->_data; |
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} |
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/** |
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* @param string $name |
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* @param string $value |
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* @return Curl |
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*/ |
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public function addHeader(string $name, string $value): Curl |
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{ |
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$this->_headers[$name] = $value; |
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return $this; |
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} |
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/** |
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* @param string $name |
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* @return Curl |
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*/ |
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public function removeHeader(string $name): Curl |
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{ |
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if (array_key_exists($name, $this->_headers)) unset($this->_headers[$name]); |
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return $this; |
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} |
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/** |
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* @return array |
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*/ |
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public function getHeaders(): array |
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{ |
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return $this->_headers; |
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} |
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public function setIsFileUpload(bool $is_file): Curl |
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{ |
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$this->addHeader('Content-Type', 'multipart/form-data'); |
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$this->_isfile = $is_file; |
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return $this; |
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} |
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public function isFileUpload(): bool |
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{ |
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return $this->_isfile; |
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} |
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/** |
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* @param bool $switch |
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* @return $this |
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*/ |
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public function cacheRequests(bool $switch): Curl |
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{ |
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$this->_enable_cache = $switch; |
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return $this; |
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} |
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/** |
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* @return CurlResponse |
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*/ |
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public function curl(): CurlResponse |
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{ |
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$post_data = null; |
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$send_headers = []; |
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$request_uri = $this->getURL(); |
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// Headers |
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foreach ($this->getHeaders() as $k => $v) $send_headers[] = "{$k}: {$v}"; |
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// Request Data |
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switch ($this->getMethod()) { |
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case 'GET': |
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case 'DELETE': |
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foreach ($this->getDataParams() as $name => $value) $request_uri = URL::setGetVar($name, $value, $request_uri); |
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break; |
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case 'POST': |
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$post_data = ($this->isFileUpload()) ? $this->getDataParams() : http_build_query($this->getDataParams()); |
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break; |
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case 'PUT': |
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$post_data = http_build_query($this->getDataParams()); |
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break; |
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} |
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if ($this->_enable_cache && $this->getMethod() === 'GET') { |
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$cache_key = urlencode($request_uri) . implode(',', $send_headers); |
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if (array_key_exists($cache_key, self::$_cache)) { |
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return self::$_cache[$cache_key]; |
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} |
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} |
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$ch = curl_init(); |
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curl_setopt($ch, CURLOPT_URL, $request_uri); |
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curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); |
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curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $this->getMethod()); |
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curl_setopt($ch, CURLOPT_USERAGENT, self::USER_AGENT); |
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); |
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curl_setopt($ch, CURLOPT_TIMEOUT, 10); |
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curl_setopt($ch, CURLOPT_ENCODING, ''); |
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curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); |
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curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false); |
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curl_setopt($ch, CURLINFO_HEADER_OUT, true); |
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curl_setopt($ch, CURLOPT_AUTOREFERER, true); |
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if (!empty($send_headers)) curl_setopt($ch, CURLOPT_HTTPHEADER, $send_headers); |
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if (!is_null($post_data)) { |
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curl_setopt($ch, CURLOPT_POST, 1); |
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curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data); |
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} |
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$result = curl_exec($ch); |
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$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE); |
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$response = new CurlResponse($http_code, $result); |
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if ($this->_enable_cache && isset($cache_key)) self::$_cache[$cache_key] = $response; |
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return $response; |
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} |
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/** |
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* @see Curl::curl() |
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* |
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* @return CurlResponse |
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*/ |
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public function curl_json(): CurlResponse |
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{ |
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$this->addHeader('Accept', 'application/json'); |
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return $this->curl(); |
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} |
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} |
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