Creating a custom (select) field and update option values from php

Question

I use Wordpress with CiviCRM. I would like to create a custom select field and populate the option values with php. After investigating the forum and the documentation I think I should create a hook (or a plugin in wordpress) for that, but not sure.

Could somebody show me a working example or direct me where to continue?

Answer 1

The hook you are looking for is hook_civicrm_customFieldOptions. Example from the docs:

function civitest_civicrm_customFieldOptions($fieldID, &$options, $detailedFormat = false ) {
    if ( $fieldID == 1 || $fieldID == 2 ) {
        if ( $detailedFormat ) {
            $options['fake_id_1'] = array( 'id'    => 'fake_id_1',
                                           'value' => 'XXX',
                                           'label' => 'XXX' );
            $options['fake_id_2'] = array( 'id'    => 'fake_id_2',
                                           'value' => 'YYY',
                                           'label' => 'YYY' );
        } else {
            $options['XXX'] = 'XXX';
            $options['YYY'] = 'YYY';
        }
    }
}