Complete the documentation of the php client when downloading a media in v4 (#262)

Complete the documentation of the php client for downloading a media in v4

Author: ahocquard

content/php-client/resources/PAM/asset-reference-files.md

@@ -58,6 +58,13 @@ $product = $client->getAssetReferenceFileApi()->downloadFromLocalizableAsset('ch
 file_put_contents('/tmp/chicagoskyline.jpg', $product->getContents());
 ```
 
+From the v4 of the PHP client, the response is returned instead of the content. It allows getting the filename and the MIME type from the response.
+You can get the content this way:
+
+```php
+file_put_contents('/tmp/chicagoskyline.jpg', $product->getBody()->getContents());
+```
+
 #### Download a reference file of a not localizable asset
 
 ```php
@@ -68,6 +75,13 @@ $product = $client->getAssetReferenceFileApi()->downloadFromNotLocalizableAsset(
 file_put_contents('/tmp/bridge.jpg', $product->getContents());
 ```
 
+From the v4 of the PHP client, the response is returned instead of the content. It allows getting the filename and the MIME type from the response.
+You can get the content this way:
+
+```php
+file_put_contents('/tmp/bridge.jpg', $product->getBody()->getContents());
+```
+
 #### Upload an asset reference file for a localizable asset
 
 ```php

content/php-client/resources/PAM/asset-variation-files.md

@@ -60,6 +60,13 @@ $product = $client->getAssetVariationFileApi()->downloadFromLocalizableAsset('ch
 file_put_contents('/tmp/chicagoskyline-mobile.jpg', $product->getContents());
 ```
 
+From the v4 of the PHP client, the response is returned instead of the content. It allows getting the filename and the MIME type from the response.
+You can get the content this way:
+
+```php
+file_put_contents('/tmp/chicagoskyline-mobile.jpg', $product->getBody()->getContents());
+```
+
 #### Download a variation file of a not localizable asset
 
 ```php
@@ -70,6 +77,13 @@ $product = $client->getAssetVariationFileApi()->downloadFromNotLocalizableAsset(
 file_put_contents('/tmp/bridge-mobile.jpg', $product->getContents());
 ```
 
+From the v4 of the PHP client, the response is returned instead of the content. It allows getting the filename and the MIME type from the response.
+You can get the content this way:
+
+```php
+file_put_contents('/tmp/bridge-mobile.jpg', $product->getBody()->getContents());
+```
+
 #### Upload an asset variation file for a localizable asset
 
 ```php
@@ -85,3 +99,4 @@ $client = new \Akeneo\Pim\ApiClient\AkeneoPimEnterpriseClientBuilder('http://ake
 
 $client->getAssetVariationFileApi()->uploadForNotLocalizableAsset('/tmp/bridge-mobile.jpg', 'bridge', 'mobile');
 ```
+

content/php-client/resources/products/product-media-files.md

@@ -33,6 +33,13 @@ $mediaFile = $client->getProductMediaFileApi()->download('code/example');
 file_put_contents('/tmp/ziggy.jpg', $product->getContents());
 ```
 
+From the v4 of the PHP client, the response is returned instead of the content. It allows getting the filename and the MIME type from the response.
+You can get the content this way:
+
+```php
+file_put_contents('/tmp/bridge.jpg', $product->getBody()->getContents());
+```
+
 #### Get a list of media file information 
 
 There are two ways of getting media files.