Function phper_sys::zend_is_callable_ex

pub unsafe extern "C" fn zend_is_callable_ex(
    callable: *mut zval, 
    object: *mut zend_object, 
    check_flags: u32, 
    callable_name: *mut *mut zend_string, 
    fcc: *mut zend_fcall_info_cache, 
    error: *mut *mut c_char
) -> zend_bool