We've seen build output like this on sync attempts: ``` 4:54:57 [jenkins@fci-dev2.codeenigma.net] out: Error: Cannot use lexical variable $value as a parameter name in 14:54:57 [jenkins@fci-dev2.codeenigma.net] out: /var/www/XXXXXXX_test_build_765/docroot/sites/all/modules/contrib/webform/components/select.inc, 14:54:57 [jenkins@fci-dev2.codeenigma.net] out: line 765 14:54:57 [jenkins@fci-dev2.codeenigma.net] out: ``` This is a direct result of PHP 7.x being used to sync a site that needs PHP 5.x. We need to be able to set PHP version like we can in the build scripts.