Drush syntax error, unexpected T_FUNCTION in webform.module
It's seems to be a problem with the anonymous function. I read some post that talk about a problem with eAccelerator and the PHP version. The recomendations are:


disabling eAccelerator and opcode caching
replacing eAccelerator with Zend's opcache
reverting to PHP 5.3


You can read more at:


The Webform issue about "Parse error: syntax error, unexpected T_FUNCTION"
http://php.net/manual/en/functions.anonymous.php#113422