Function phper_sys::phper_call_user_function

pub unsafe extern "C" fn phper_call_user_function(
    function_table: *mut HashTable, 
    object: *mut zval, 
    function_name: *mut zval, 
    retval_ptr: *mut zval, 
    param_count: u32, 
    params: *mut zval
) -> bool