TRADER_SET_COMPAT(3) 1 TRADER_SET_COMPAT(3) trader_set_compat - Set compatibility modeSYNOPSISvoid trader_set_compat (integer $compatId)DESCRIPTIONSet compatibility mode which will affect the way calculations are done by all the extension functions.PARAMETERSo $compatId - Compatibility Id. TRADER_COMPATIBILITY_* series of constants should be used.RETURN VALUESNo value is returned. PHP Documentation Group TRADER_SET_COMPAT(3)