Merge branch '3.4' into 4.3

* 3.4:
  Simpler example for Apache basic auth workaround
  [Console] Fix trying to access array offset on value of type int
  [Process] add tests for php executable finder if file does not exist
  [Cache] Make sure we get the correct number of values from redis::mget()

Author: nicolas-grekas

ServerBag.php

@@ -46,13 +46,13 @@ public function getHeaders()
             /*
              * php-cgi under Apache does not pass HTTP Basic user/pass to PHP by default
              * For this workaround to work, add these lines to your .htaccess file:
-             * RewriteCond %{HTTP:Authorization} ^(.+)$
-             * RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
+             * RewriteCond %{HTTP:Authorization} .+
+             * RewriteRule ^ - [E=HTTP_AUTHORIZATION:%0]
              *
              * A sample .htaccess file:
              * RewriteEngine On
-             * RewriteCond %{HTTP:Authorization} ^(.+)$
-             * RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
+             * RewriteCond %{HTTP:Authorization} .+
+             * RewriteRule ^ - [E=HTTP_AUTHORIZATION:%0]
              * RewriteCond %{REQUEST_FILENAME} !-f
              * RewriteRule ^(.*)$ app.php [QSA,L]
              */