Drupal Data Import Skelleton

DrupalImportExample.php

<?php

error_reporting(E_ALL); 

set_time_limit(3600);

require_once 'includes/bootstrap.inc'; // Include the Drupal bootstrap include file
define('DRUPAL_ROOT', getcwd());      // Set the web root directory
drupal_bootstrap(7);                  // Full Drupal Bootstrap level https://api.drupal.org/api/drupal/includes%21bootstrap.inc/function/drupal_bootstrap/7

$source_data = array();

/*...
      Load your data in from your source. Either from another database, or from a flat file
... */

$row = 0;

foreach($source_data as $row) {
  $row++;
  
  // Set some defaults
  $node = (object)array(
    'type' => NODE_TYPE_HERE,
    'language' => LANGUAGE_NONE, // or a language code as applicable
    'status' => 1,
    'comment' => 0,
    'promote' => 0,
    'uid' => 1,
  );
  
  // Runs prepare hooks on node, and sets things like date and revision
  node_object_prepare($node);
  
  // Map data
  $node->field_field_name_A[$node->language][0]['value'] = $source_data['field_name_A'];
  $node->field_field_name_B[$node->language][0]['value'] = $source_data['field_name_B'];
  $node->field_term_reference[$node->language]['0']['tid'] = $term_map[$source_data['term_name']];
  /*...
        Continue mapping, doing any cleansing/reformatting as necessary
  ... */
  
  try {
    // Try to save
    node_save($node);
  } catch (Exception $e) {
    // Output helpful debugging information in event of failure
    echo '<pre>EXCEPTION: '.$e->getMessage())."\n"
        .'Error processing row #'.$row.'</pre>';
  }
  
}

?>