bug #21104 [FrameworkBundle] fix IPv6 address handling in server comm…

…ands (xabbuh)

This PR was merged into the 2.7 branch.

Discussion
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[FrameworkBundle] fix IPv6 address handling in server commands

| Q             | A
| ------------- | ---
| Branch?       | 2.7
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #21039 (comment)
| License       | MIT
| Doc PR        |

This fixes #21039 (comment) as reported by @sstok for the existing commands by backporting @fabpot's patch from #21039.

Commits
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2bb4713 fix IPv6 address handling in server commands

src/Symfony/Bundle/FrameworkBundle/Command/ServerCommand.php

@@ -54,7 +54,9 @@ protected function isOtherServerProcessRunning($address)
             return true;
         }
 
-        list($hostname, $port) = explode(':', $address);
+        $pos = strrpos($address, ':');
+        $hostname = substr($address, 0, $pos);
+        $port = substr($address, $pos + 1);
 
         $fp = @fsockopen($hostname, $port, $errno, $errstr, 5);