Reply To: Displaying div only when sub_field in group has content

• John Huebner

• June 13, 2020 at 12:01 am

Yes, a group field always returns true using have_rows() you need to test the sub fields.

The following uses variable variables to reduce multiple ifs into a loop https://www.php.net/manual/en/language.variables.variable.php

$group = 'burial_census_information';
$sub_fields = array(
  'burial_1841_census',
  'burial_1851_census',
  'burial_1861_census',
  'burial_1871_census',
  'burial_1881_census',
  'burial_1891_census',
  'burial_1901_census',
  'burial_1911_census',
  'burial_1921_census',
  'burial_1939_census'
);
$has_content = false;
foreach ($sub_fields as $sub_field) {
  if (get_field($group.'_'.$sub_field)) {
    $has_content = true;
    ${$sub_field} = get_field($group.'_'.$sub_field);
  }
}
if ($has_content} {
  ?>
    <div class="container-census-information burial-container">
      <h2>Census Information this should only appear if there is content in any of the sub_fields</h2>
      <?php 
        foreach ($sub_fields as $sub_field) {
          if (!empty(${$sub_field})) {
            ?>
              <h3><?php echo substr($sub_field, 7, 4)); ?></h3>
              <p><?php echo ${$sub_field}; ?></p>
            <?php 
          }
        }
      ?>
    </div>
  <?php 
}