MemberPress: Dynamic Trial Periods

//Sets up a trial period on MemberPress such that ALL users renew on March 31st.

function mepr_days_until($date){

    return (isset($date)) ? floor((strtotime($date) - time())/60/60/24) : false;

}

function mepr_update_mepr_trial_period() {

  $prd = new MeprProduct(123); //CHANGE 123 to the ID of your Membership level

  $last_check = get_option('mepr_trial_period_last_checked-'.$prd->ID, 0);

  if(time() - $last_check <= 3600) { return; } //Only do this once per hour

  $curr_month_of_year = gmdate('n');

  //change 4 to be the month after your month 

  if($curr_month_of_year >= 4) {

    //Get next year's March 31st

    $days = mepr_days_until(gmdate((gmdate('Y')+1).'-03-31')); //Change renewal date in format -03-14 Month-Day

  }

  else {

    //Get this year's March 31st

    $days = mepr_days_until(gmdate(gmdate('Y').'-03-31')); //Change renewal date in format -03-14 Month-Day

  }

  $prd->trial = true;

  $prd->trial_days = $days;

  $prd->store();

  update_option('mepr_trial_period_last_checked-'.$prd->ID, time());

}

add_action('init', 'mepr_update_mepr_trial_period');