XML files should not contain syntax error

From Insight https://insight.sensiolabs.com/projects/7f9d0558-cf49-40fe-b476-7e4ff4083082/analyses/1
exit() and die() functions should be avoided

From Insight https://insight.sensiolabs.com/projects/7f9d0558-cf49-40fe-b476-7e4ff4083082/analyses/1
Unused method, property, variable or parameter

From Insight https://insight.sensiolabs.com/projects/7f9d0558-cf49-40fe-b476-7e4ff4083082/analyses/1
Source code should not contain FIXME comments

From Insight https://insight.sensiolabs.com/projects/7f9d0558-cf49-40fe-b476-7e4ff4083082/analyses/1