When I try to submit my survey, I get a fatal error:
Fatal error: Only variables can be passed by reference in c:\program files\apache group\apache\htdocs\needs_assesment\needs_assesment.php on line 263


Here is my code

settype ($acute_care, "integer"); settype ($community_based_care, "integer"); settype ($finance, "integer"); settype ($social_policy, "integer");
settype ($managed_care, "integer"); settype ($home_health_care, "integer"); settype ($hospice_services, "integer"); settype ($housing_assistance, "integer");
Line 263- settype ($institutional_long_term_care, "integer"); settype ($interdisciplinary_health_care, "integer"); settype ($long-term_care, "integer");
settype ($medicare, "integer"); settype ($palliative_care, "integer"); settype ($quality_assurance, "integer"); settype ($rehabilitation, "integer");
settype ($sub-acute_care, "integer"); settype ($advanced_directives, "integer"); settype ($competency, "integer"); settype ($end_of_life, "integer");

can someone help?