fix square quoting for fsockopen

src/Socket.php

@@ -6,15 +6,30 @@ namespace Yggverse\Net;
 
 class Socket
 {
+    public static function isIPv4(mixed $value): bool
+    {
+        return false !== filter_var($value, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4);
+    }
+
+    public static function isIPv6(mixed $value): bool
+    {
+        return false !== filter_var($value, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6);
+    }
+
+    public static function isHostName(mixed $value): bool
+    {
+        return false !== filter_var($value, FILTER_VALIDATE_DOMAIN, FILTER_FLAG_HOSTNAME);
+    }
+
     public static function isHost(mixed $value): bool
     {
         return
         (
             is_string($value) &&
             (
-                false !== filter_var($value, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4) ||
+                false !== self::isIPv4($value) ||
-                false !== filter_var($value, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6) ||
+                false !== self::isIPv6($value) ||
-                false !== filter_var($value, FILTER_VALIDATE_DOMAIN, FILTER_FLAG_HOSTNAME)
+                false !== self::isHostName($value)
             )
         );
     }
@@ -37,7 +52,7 @@ class Socket
         if (self::isHost($host) && self::isPort($port))
         {
             $connection = @fsockopen(
-                $host,
+                self::isIPv6($host) ? "[$host]" : $host, // PHP is shit 💩.
                 $port,
                 $error_code,
                 $error_message,