unexpected T_FUNCTION error when using “function (array $matches)”

[MachineBobo]

Hi I'm using the following code but I'm getting an "unexpected T_FUNCTION" syntax error for the second line. Any suggestions?\[code\]preg_replace_callback("/\\[LINK\=(.*?)\\\](.*?)\\[\/LINK\\]/is",function (array $matches) { if (filter_var($matches[1], FILTER_VALIDATE_URL)) return '<a href="'. htmlspecialchars($matches[1], ENT_QUOTES). '" target="_blank">'. htmlspecialchars($matches[2])."</a>"; else return "INVALID MARKUP";}, $text);\[/code\]