Search array of objects?

[MrJames]

Hi,

 

Given a day number via POST, I am trying to search an array of objects to determine whether any of these objects have an attribute (day_number) with the day number from the form, and consequently use the existing object opposed to creating a new, duplicate one.

 

if($_POST['new_day']) {
  $day = new Day($next_day);
  array_push($existing_days, $day);
  $next_day = calc_next_day();
}
else {
  // search existing objs in $existing_days for an object with attrib 'day_number' having value $_POST['day_number'] and return the relevant object
}

 

Any ideas on how this could be best achieved would be most appreciated.

 

Thanks in advance,

James

[lur]

/* PHP5 */
foreach ($existing_days as $object) {
if ($object instanceof Day && $object->day_number == $_POST['day_number']) {
	return $object;
}
}

/* PHP 4 */
foreach ($existing_days as $object) {
if (is_a($object, 'Day') && $object->day_number == $_POST['day_number']) {
	return $object;
}
}