Update FormatRules.php

Removed $data in docs.
Added check if $ip is binary string to do not check inet_ntop on human readable strings.

Author: nowackipawel

system/Validation/FormatRules.php

@@ -341,11 +341,10 @@ public function valid_emails(string $str = null): bool
 	//--------------------------------------------------------------------
 
 	/**
-	 * Validate an IP address
+	 * Validate an IP address (human readable format or binary string - inet_pton)
 	 *
 	 * @param string $ip    IP Address
 	 * @param string $which IP protocol: 'ipv4' or 'ipv6'
-	 * @param array  $data
 	 *
 	 * @return boolean
 	 */
@@ -364,7 +363,7 @@ public function valid_ip(string $ip = null, string $which = null): bool
 				break;
 		}
 
-		return (bool) filter_var($ip, FILTER_VALIDATE_IP, $which) || (bool) filter_var(inet_ntop($ip), FILTER_VALIDATE_IP, $which);
+		return (bool) filter_var($ip, FILTER_VALIDATE_IP, $which) || (!ctype_print($ip) && (bool) filter_var(inet_ntop($ip), FILTER_VALIDATE_IP, $which));
 	}
 
 	//--------------------------------------------------------------------