Menu callback; deletes a field from all user profiles.

File

drupal-7.x/modules/profile/profile.admin.inc, line 396

Administrative page callbacks for the profile module.

Code

function profile_field_delete($form, &$form_state, $fid) {
  $field = db_query("SELECT title FROM {profile_field} WHERE fid = :fid", array(':fid' => $fid))->fetchObject();
  if (!$field) {
    drupal_not_found();
    return;
  }
  $form['fid'] = array('#type' => 'value', '#value' => $fid);
  $form['title'] = array('#type' => 'value', '#value' => $field->title);

  return confirm_form($form, 
  t('Are you sure you want to delete the field %field?', array('%field' => $field->title)), 'admin/config/people/profile', 
  t('This action cannot be undone. If users have entered values into this field in their profile, these entries will also be deleted. If you want to keep the user-entered data, instead of deleting the field you may wish to <a href="@edit-field">edit this field</a> and change it to a hidden profile field so that it may only be accessed by administrators.', array('@edit-field' => url('admin/config/people/profile/edit/' . $fid))), 
  t('Delete'), t('Cancel'));
}