Reply To: custom fields?

@ James

re: How can I display a group of checkboxes together? For example, we have 9 different certifications that a person may have.

You would need to use a checklist field These are only marginally more difficult to work with compared to the text field and checkbox field types. Building off the previous samples here’s how to add a checklist:

$atts = array(
    'title'    => 'Metabox Name',         // Change this to a name which applies to your project.
    'id'       => 'custom_one',           // Change this so it is unique to you project.
    'context'  => 'normal',
    'priority' => 'core',
    'fields'   => array(
        array(
            'name'       => 'Field Name One', // Change this field name to something which applies to you project.
            'show_label' => TRUE,             // Whether or not to display the 'name'. Changing it to false will suppress the name.
            'id'         => 'field_id_1',     // Change this so it is unique to you project. Each field id MUST be unique.
            'type'       => 'text',           // This is the field type being added.
            'size'       => 'regular',        // This can be changed to one of the following: 'small', 'regular', 'large'
        ),
        array(
            'name'       => 'Field Name Two', // Change this field name to something which applies to you project.
            'show_label' => TRUE,             // Whether or not to display the 'name'. Changing it to false will suppress the name.
            'id'         => 'field_id_2',     // Change this so it is unique to you project. Each field id MUST be unique.
            'type'       => 'text',           // This is the field type being added.
            'size'       => 'regular',        // This can be changed to one of the following: 'small', 'regular', 'large'
        ),
        array(
            'name'       => 'Field Name Three', // Change this field name to something which applies to you project.
            'show_label' => TRUE,               // Whether or not to display the 'name'. Changing it to false will suppress the name.
            'desc'       => 'Checkbox Description',
            'id'         => 'field_id_3',       // Change this so it is unique to you project. Each field id MUST be unique.
            'type'       => 'checkbox',         // This is the field type being added.
        ),
        array(
            'name'       => 'Field Name Four',  // Change this field name to something which applies to you project.
            'show_label' => TRUE,               // Whether or not to display the 'name'. Changing it to false will suppress the name.
            'desc'       => 'Checkbox Description',
            'id'         => 'field_id_4',       // Change this so it is unique to you project. Each field id MUST be unique.
            'type'       => 'checkbox',         // This is the field type being added.
        ),
        array(
            'name'       => 'Field Name Five',  // Change this field name to something which applies to you project.
            'show_label' => TRUE,               // Whether or not to display the 'name'. Changing it to false will suppress the name.
            'desc'       => 'Checkbox Description',
            'id'         => 'field_id_5',       // Change this so it is unique to you project. Each field id MUST be unique.
            'type'       => 'checkbox',         // This is the field type being added.
        ),
        array(
            'name'       => 'Field Name Six',  // Change this field name to something which applies to you project.
            'show_label' => TRUE,               // Whether or not to display the 'name'. Changing it to false will suppress the name.
            'id'         => 'certifications',
            'type'       => 'checkboxgroup',
            'options'    => array(
                'RPR (Registered Prefessional Reporter)' => 'RPR (Registered Prefessional Reporter)',
                'RMR (Registered Merit Reporter)' => 'RMR (Registered Merit Reporter)',
                'RDR (Registered Diplomat Reporter)' => 'RDR (Registered Diplomat Reporter)',
                'CRR (Certified Realtime Reporter)' => 'CRR (Certified Realtime Reporter)',
                'CSR (Certified Shorthand Reporter)' => 'CSR (Certified Shorthand Reporter)',
                'CLVS (Certified Legal Video Specialist)' => 'CLVS (Certified Legal Video Specialist)',
                'CMRS (Certified Manager of Reporting Services)' => 'CMRS (Certified Manager of Reporting Services)',
                'CRI (Court Reporting Instructor)' => 'CRI (Court Reporting Instructor)',
                'CPE (Certified Program Evaluator)' => 'CPE (Certified Program Evaluator)',
            ),
            'default'    => '',
        ),
    ),
);

Displaying this is where is gets “tricky” because it is stored as an array so you have to loop thru the saved values to display them like so:

$certifications = $entry->getMeta(
    array(
        'key'    => 'certifications', // This should match exactly the field id used when registering the custom field.
        'single' => TRUE              // Do not change this.
    )
);

if ( ! empty( $certifications ) ) {

    echo '<ul class="cn-certifications">';

    foreach ( $certifications as $certification ) {

        printf( '<li class="cn-certification cn-%1$s">%2$s</li>', esc_attr( $certification ), esc_html( $certification ) );

    }

    echo '</ul>';
}

This is not tested, but should work. Hope that helps!