Store subfield values in an array and check if a certain value exists

• ste9890

• October 27, 2017 at 6:01 am

Hi there,

I have a repeater field with 2 sub fields (1 for title and 1 for description).

I basically want to look at the repeater rows and say “if one of the titles equals “this phrase”, then set a variable to true”.

To clarify, I don’t want to do this within the while loop.

I thought one way to do it would be to get all the subfield titles in an array, and then check to see if any of the array values match the phrase, but I can’t figure out how to do it!

Any help would be greatly appreciated!

Thank you

• nightillusions

• October 28, 2017 at 3:11 am

I have this little function to search through an object or array:

/**
 * Search for a value in a multidimensional array or object
 *
 * @param $needle       What to search for
 * @param $haystack     The array to search in
 * @param bool $strict  Strict mode
 * @param $needle_field The field name to search in
 * @return bool
 *
 * @author Pascal Jordin
 */
function search_recursive($needle, $haystack, $strict = false, $needle_field = false){
    if ($needle_field) {
        if (is_array($haystack)){
            foreach ($haystack as $item) {
                if (isset($item[$needle_field]) && ($strict ? $item[$needle_field] === $needle : $item[$needle_field] == $needle) || ((is_object($item) || is_array($item)) && search_recursive($needle, $item, $strict, $needle_field))) {
                    return true;
                }
            }
		} elseif (is_object($haystack)){
            foreach ($haystack as $item) {
                if (isset($item->$needle_field) && ($strict ? $item->$needle_field === $needle : $item->$needle_field == $needle) || ((is_object($item) || is_array($item)) && search_recursive($needle, $item, $strict, $needle_field))) {
                    return true;
                }
            }
		}
    } else {
        if (is_array($haystack) || is_object($haystack) || $haystack instanceof Traversable) {
            foreach ($haystack as $item) {
                if (($strict ? $item === $needle : $item == $needle) || ((is_object($item) || is_array($item)) && search_recursive($needle, $item, $strict, $needle_field))) {
                    return true;
                }
            }
        }
    }
    return false;
}

With this you could search for it like:

$field = get_field('repeater_field_name');
$match = search_recursive('the phrase', $field, false, 'title');

Then $match is true if phrase match value of any sub field named title.

• ste9890

• October 28, 2017 at 9:48 am

That is just the ticket – works a treat! Thanks so much for your help!