parsing - PHP Version 5.2.14 / Parse error: syntax error, unexpected T_FUNCTION, expecting ')'

I have a certain piece of code that I'm trying to use with PHP Version 5.2.14 . Is it incompatible?? I run the following,

jailshell-3.2$ php -l /XYZ/functions.php

And it gives:

Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /XYZ/functions.php on line 2115
Errors parsing /XYZ/functions.php

The code is:

2114    $range = array_map(
2115                function (DatePeriod $p) use ($vt2) {
2116               $res = array();