Dry cleaner working hours

.php

<?php
/***** NINO *****/
function working_hours($man_id) {
	date_default_timezone_set('America/New_York');
	$f = file_get_contents('/stripped.txt');
    $e = explode("\n\n", $f);
	
	foreach($e as $block_id => $store_block) {
		$e2 = explode("\n", $store_block);
		list(, $block_id) = array_map('trim', explode(':', $e2[0]));
		
		if ($block_id == $man_id) {
			$today_day = date('D');
			
			// iterate thru days from that block
			array_shift($e2);
			
			foreach($e2 as $days) {
				if (substr($days, 0, 3) == $today_day) {
					$day_working_hours_part_e = array_map('trim', explode(':', $days));
					$day_working_hours_part = end($day_working_hours_part_e);
					
					if ($day_working_hours_part == 'closed') {
						return 'closed';
					}
					
					list($open_time, $close_time) = array_map('trim', explode('-', $day_working_hours_part));
					
					$ot_str = "today $open_time";
					$ct_str = "today $close_time";
					
					$open_time_t = strtotime($ot_str);
					$close_time_t = strtotime($ct_str);
					
					if (time() >= $open_time_t && time() <= $close_time_t) {
						return 'open';
					} else {
						return 'closed';
					}
				}
			}
		}
			
	}
}

if (isset($manufacturer_id)) {
	$open_or_not = working_hours($manufacturer_id);
} else {
	trigger_error("manufacturer_id is not set, and the open/closed radio button/text will not execute");
}
/***** </NINO *****/
?>