Updating From Entry Meta

frm_entry_meta_example.php

<?php
function add_or_update_entry_meta( $entry_id, $field_key, $value ){
    
    /* convert field_key to field_id for software portability */
    $field_id = FrmField::get_id_by_key($field_key);

    /* check for existing value */
    $field_val_exists = FrmProEntriesController::get_field_value_shortcode(array('field_id' => $field_id, 'entry' => $entry_id));

    /* add or update as appropriate */
    if ( !empty( $field_val_exists ) ) {
        $result = FrmEntryMeta::update_entry_meta( $entry_id, $field_id, '', $value );
    } else {
        $result = FrmEntryMeta::add_entry_meta( $entry_id, $field_id, '', $value );
    }
}