diff --git a/src/Symfony/Component/HttpClient/DataCollector/HttpClientDataCollector.php b/src/Symfony/Component/HttpClient/DataCollector/HttpClientDataCollector.php
index 292cdf3945bcf..7d8409e7309f2 100644
--- a/src/Symfony/Component/HttpClient/DataCollector/HttpClientDataCollector.php
+++ b/src/Symfony/Component/HttpClient/DataCollector/HttpClientDataCollector.php
@@ -11,6 +11,7 @@
 
 namespace Symfony\Component\HttpClient\DataCollector;
 
+use Symfony\Component\HttpClient\HttpClientTrait;
 use Symfony\Component\HttpClient\TraceableHttpClient;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
@@ -23,6 +24,8 @@
  */
 final class HttpClientDataCollector extends DataCollector implements LateDataCollectorInterface
 {
+    use HttpClientTrait;
+
     /**
      * @var TraceableHttpClient[]
      */
@@ -176,7 +179,7 @@ private function getCurlCommand(array $trace): ?string
         }
 
         $debug = explode("\n", $trace['info']['debug']);
-        $url = $trace['url'];
+        $url = self::mergeQueryString($trace['url'], $trace['options']['query'] ?? [], true);
         $command = ['curl', '--compressed'];
 
         if (isset($trace['options']['resolve'])) {
@@ -196,8 +199,9 @@ private function getCurlCommand(array $trace): ?string
             if (\is_string($body)) {
                 $dataArg[] = '--data '.escapeshellarg($body);
             } elseif (\is_array($body)) {
-                foreach ($body as $key => $value) {
-                    $dataArg[] = '--data '.escapeshellarg("$key=$value");
+                $body = explode('&', self::normalizeBody($body));
+                foreach ($body as $value) {
+                    $dataArg[] = '--data '.escapeshellarg(urldecode($value));
                 }
             } else {
                 return null;
diff --git a/src/Symfony/Component/HttpClient/Tests/DataCollector/HttpClientDataCollectorTest.php b/src/Symfony/Component/HttpClient/Tests/DataCollector/HttpClientDataCollectorTest.php
index ebe4c2c52569b..7d36c619f74cb 100755
--- a/src/Symfony/Component/HttpClient/Tests/DataCollector/HttpClientDataCollectorTest.php
+++ b/src/Symfony/Component/HttpClient/Tests/DataCollector/HttpClientDataCollectorTest.php
@@ -244,6 +244,21 @@ public function provideCurlRequests(): iterable
                         'foo' => 'fooval',
                         'bar' => 'barval',
                         'baz' => 'bazval',
+                        'foobar' => [
+                            'baz' => 'bazval',
+                            'qux' => 'quxval',
+                        ],
+                        'bazqux' => ['bazquxval1', 'bazquxval2'],
+                        'object' => (object) [
+                            'fooprop' => 'foopropval',
+                            'barprop' => 'barpropval',
+                        ],
+                        'tostring' => new class() {
+                            public function __toString(): string
+                            {
+                                return 'tostringval';
+                            }
+                        },
                     ],
                 ],
             ],
@@ -253,14 +268,37 @@ public function provideCurlRequests(): iterable
   --url %1$shttp://localhost:8057/json%1$s \\
   --header %1$sAccept: */*%1$s \\
   --header %1$sContent-Type: application/x-www-form-urlencoded%1$s \\
-  --header %1$sContent-Length: 32%1$s \\
+  --header %1$sContent-Length: 211%1$s \\
   --header %1$sAccept-Encoding: gzip%1$s \\
   --header %1$sUser-Agent: Symfony HttpClient/Native%1$s \\
-  --data %1$sfoo=fooval%1$s --data %1$sbar=barval%1$s --data %1$sbaz=bazval%1$s',
+  --data %1$sfoo=fooval%1$s --data %1$sbar=barval%1$s --data %1$sbaz=bazval%1$s --data %1$sfoobar[baz]=bazval%1$s --data %1$sfoobar[qux]=quxval%1$s --data %1$sbazqux[0]=bazquxval1%1$s --data %1$sbazqux[1]=bazquxval2%1$s --data %1$sobject[fooprop]=foopropval%1$s --data %1$sobject[barprop]=barpropval%1$s --data %1$stostring=tostringval%1$s',
         ];
 
-        // escapeshellarg on Windows replaces double quotes with spaces
+        // escapeshellarg on Windows replaces double quotes & percent signs with spaces
         if ('\\' !== \DIRECTORY_SEPARATOR) {
+            yield 'GET with query' => [
+                [
+                    'method' => 'GET',
+                    'url' => 'http://localhost:8057/?foo=fooval&bar=barval',
+                    'options' => [
+                        'query' => [
+                            'bar' => 'newbarval',
+                            'foobar' => [
+                                'baz' => 'bazval',
+                                'qux' => 'quxval',
+                            ],
+                            'bazqux' => ['bazquxval1', 'bazquxval2'],
+                        ],
+                    ],
+                ],
+                'curl \\
+  --compressed \\
+  --request GET \\
+  --url %1$shttp://localhost:8057/?foo=fooval&bar=newbarval&foobar%%5Bbaz%%5D=bazval&foobar%%5Bqux%%5D=quxval&bazqux%%5B0%%5D=bazquxval1&bazqux%%5B1%%5D=bazquxval2%1$s \\
+  --header %1$sAccept: */*%1$s \\
+  --header %1$sAccept-Encoding: gzip%1$s \\
+  --header %1$sUser-Agent: Symfony HttpClient/Native%1$s',
+            ];
             yield 'POST with json' => [
                 [
                     'method' => 'POST',