wp_schedule_event with array of $args does not pass array to action

[commentluv]

when I schedule an event with an array of $args , when the action is called by the cron, it does not pass the callback function the array, it sends a single string value.

action is registered with this

add_action('fhprw_action','fhprw_check_fetch'); 

function fhprw_check_fetch($args){
  $type=$args['type'];
//do stuff according to $type
  update_option('debug_args',$args);
}

when I use

do_action('fhprw_action',array('type'=>'uk'));

the option 'debug_args' is a serialised array as would be expected
a:1:{s:4:"type";s:4:"uk";}

but if an event is scheduled with

wp_schedule_event(time()+60,'twicedaily','fhprw_action',array('type'=>'uk'));

then when the event happens after 1 minute, the callback function receives $args as a string 'uk'

the option 'debug_args' is a single string of
uk

[commentluv]

ok figured this out about a pico second after wpmuguru answered me on twitter

scheduled cron callback functions receive arg1,arg2,arg3 , not as an array