move_d8_fields.php

<?php
// Move Drupal 8 fields from one entity type to another.
// @see https://www.drupal.org/project/field_tools/issues/1349646#comment-13329737
$poc_fields = [
      'field_adl_iadl',
      'field_asa_referrals',
      'field_authorized_for_lifeline_se',
      'field_backup_plans',
      'field_care_coordination_sec_12',
      'field_care_coordination_sec_19',
      'field_cf_poc',
      'field_choice_letter',
      'field_dhhs_roi',
      'field_dhhs_roi_attachments',
      'field_eligibility_letter',
      'field_hbc_copayment',
      'field_hbc_waiver_of_copayment',
      'field_health_welfare',
      'field_job_description',
      'field_medical_records_roi',
      'field_orc_hours_budget',
      'field_payroll_data_sheet',
      'field_person_center_plan',
      'field_plan_of_service_agreement',
      'field_pre_post_test',
      'field_privacy_policy_consent',
      'field_risk_mitigation',
      'field_rn_assessor_notes',
      'field_rn_referral',
      'field_skills_training_hours_budg',
      'field_wsp_referral',
    ];

    foreach ($poc_fields as $poc_field) {
      $field_storage_source = \Drupal\field\Entity\FieldStorageConfig::loadByName('paragraph', $poc_field);
      $field_source = \Drupal\field\Entity\FieldConfig::loadByName('paragraph', 'plan_of_care_year', $poc_field);
      // Field storage:
      $field_name = $field_storage_source->getName();
      $field_type = $field_storage_source->getType();
      $field_storage_settings = $field_storage_source->getSettings();
      // Field:
      $field_label = $field_source->getLabel();
      $field_settings = $field_source->getSettings();

      \Drupal\field\Entity\FieldStorageConfig::create([
        'field_name' => $field_name,
        'type' => $field_type,
        'entity_type' => 'node',
        'settings' => $field_storage_settings,
      ])
      ->save();

      \Drupal\field\Entity\FieldConfig::create([
        'field_name' => $field_name,
        'entity_type' => 'node',
        'bundle' => 'enrollment',
        'label' => $field_label,
        'settings' => $field_settings,
      ])
      ->save();
    }