fix snippet line length

from #696

Author: LevFlavien

content/tutorials/guides/how-to-get-families-and-attributes.md

@@ -96,6 +96,7 @@ $client = new \GuzzleHttp\Client([
 Get families and attribute codes by requesting the PIM API
 
 ```php [activate:PHP]
+
 const API_URL = '/api/rest/v1/families?search={"has_products":[{"operator":"=","value":true}]}';
 
 // Make an authenticated call to the API
@@ -110,7 +111,10 @@ while (array_key_exists('next', $data['_links'])) {
     $response = $client->get($data['_links']['next']['href']);
     $data = json_decode($response->getBody()->getContents(), true);
     $families = array_merge($families, $data['_embedded']['items']);
-    $attributeCodes = array_merge($attributeCodes, ...array_column($data['_embedded']['items'], 'attributes'));
+    $attributeCodes = array_merge(
+        $attributeCodes,
+        ...array_column($data['_embedded']['items'], 'attributes')
+    );
 }
 
 $attributeCodes = array_unique($attributeCodes);
@@ -136,6 +140,7 @@ This step is mandatory if you want to synchronize product variants later. If not
 Get family variants by requesting the PIM API for each families
 
 ```php [activate:PHP]
+
 const MAX_ITEMS = 100;
 const API_URL = '/api/rest/v1/families/%s/variants?limit=' . MAX_ITEMS;
 
@@ -159,6 +164,7 @@ saveVariants($variants);
 Remember your <b>attribute_code_list</b>? It’s (already) time to use it to retrieve attribute information
 
 ```php [activate:PHP]
+
 const MAX_ITEMS = 100;
 const API_URL = '/api/rest/v1/attributes?search={"code":[{"operator":"IN","value":%s}]}&limit=' . MAX_ITEMS;
 
@@ -190,4 +196,4 @@ saveAttributes($attributes);
 ::: warning
 attribute_code_list may be significant, very big! If you get an <a href="https://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.4.15" target="_blank" rel="noopener noreferrer">HTTP 414 error</a>
 , you probably hit these boundaries. A workaround is to split your attribute_code_list into different parts and call them independently.
-:::
+:::