修复get请求传入data参数，导致请求出错的问题

Author: webguosai

src/HttpClient.php

@@ -207,6 +207,8 @@ public function get(string $url, $data = [], $headers = [])
             }
         }
 
+        $data = [];
+
         return $this->request($url, 'GET', $data, $headers);
     }
 

test/server.php

@@ -63,15 +63,16 @@
 
 
 
-
-function getAllHeaders()
-{
-    foreach ($_SERVER as $name => $value)
+if (!function_exists('getAllHeaders')) {
+    function getAllHeaders()
     {
-        if (substr($name, 0, 5) == 'HTTP_')
+        foreach ($_SERVER as $name => $value)
         {
-            $headers[str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', substr($name, 5)))))] = $value;
+            if (substr($name, 0, 5) == 'HTTP_')
+            {
+                $headers[str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', substr($name, 5)))))] = $value;
+            }
         }
+        return $headers;
     }
-    return $headers;
-}
+}

test/test.php

@@ -6,6 +6,7 @@
 //报告E_NOTICE之外的所有错误(可解决变量不存在导致的错误，如GET、POST数据)
 error_reporting(E_ALL & ~E_NOTICE);
 
+
 $options = [
     'timeout'   => 10,
     'redirects' => true,
@@ -18,7 +19,7 @@
 $http    = new \Webguosai\HttpClient($options);
 
 $url = 'http://test.com/test/http-client/test/server.php?a=1';
-$url = 'http://test.com/test/task/test/charset/bom/';
+//$url = 'http://test.com/test/task/test/charset/bom/';
 //$url = 'http://test.com/test/task/test/charset/gbk/';
 //$url = 'http://127.0.0.1:10453/think';
 //$url = 'http://waophp.com/api/test';