fix an error for parse response

Author: inhere

src/Curl/CurlClient.php

@@ -68,7 +68,6 @@
 use const CURLOPT_PUT;
 use const CURLOPT_REFERER;
 use const CURLOPT_RETURNTRANSFER;
-use const CURLOPT_SAFE_UPLOAD;
 use const CURLOPT_SSL_VERIFYHOST;
 use const CURLOPT_SSL_VERIFYPEER;
 use const CURLOPT_SSLCERT;
@@ -338,7 +337,7 @@ public function request(string $url, $data = null, string $method = 'GET', array
             $this->setResponseParsed(true);
         } else {
             // if CURLOPT_HEADER is TRUE, The raw response data contains headers and body
-            $this->rawResponse = (string)$response;
+            $this->rawResponse = $response;
             $this->parseResponse(); // parse raw response data
         }
 

src/Traits/ParseRawResponseTrait.php

@@ -53,7 +53,7 @@ protected function parseResponse(): void
 
         // Extract headers from response
         preg_match_all($pattern, $response, $matches);
-        $headersString = array_pop($matches[0]);
+        $headersString = (string)array_pop($matches[0]);
 
         $headers = explode("\r\n", str_replace("\r\n\r\n", '', $headersString));
         // parse headers