wpforms-import.php

<?php
/**
* After import hook
* This hook is fired after the import is completed
*/
public function after_import() {

  // Add filter of the link rel attr to avoid JSON damage.
  add_filter( 'wp_targeted_link_rel', '__return_empty_string', 50, 1 );

  // Here we grab the JSON file manualy from our importer directory.
  $json_file = file_get_contents( trailingslashit( ESS_DIR_PATH ) . 'inc/wpforms/form.json' );
  $json_string = $json_file;

  if ( strpos( bin2hex( $json_file ), 'efbbbf' ) === 0 ) {
    $json_string = substr( $json_file, 3 );
  }

  $forms = json_decode( $json_string, true );

  if ( empty( $forms ) || ! is_array( $forms ) ) {
    wp_die(
      esc_html__( 'Form data cannot be imported.', 'wpforms-lite' ),
      esc_html__( 'Error', 'wpforms-lite' ),
      [
        'response' => 400,
      ]
    );
  }

  foreach ( $forms as $form ) {
    $title  = ! empty( $form['settings']['form_title'] ) ? $form['settings']['form_title'] : '';
    $desc   = ! empty( $form['settings']['form_desc'] ) ? $form['settings']['form_desc'] : '';
    $new_id = wp_insert_post(
      [
        'import_id'    => $form['id'], // we have to assign a specific ID here from the form.json
        'post_title'   => $title,
        'post_status'  => 'publish',
        'post_type'    => 'wpforms',
        'post_excerpt' => $desc,
      ]
    );

    if ( $new_id ) {
      wp_update_post(
        [
          'ID'           => $new_id,
          'post_content' => wp_slash( wp_json_encode( $form ) ),
        ]
      );
    }
  }
}